Devendra P. Garg

Journal Article IEEE/ASME Transactions on Mechatronics · January 1, 2013 The problem of perimeter detection and monitoring has a variety of applications. In this paper, a hybrid system of finite states is proposed for multiple autonomous robotic agents with the purpose of hazardous spill perimeter detection and tracking. In the ... Full text Cite

Potential Function Control of Distributed Multi-agent Systems

Journal Article Journal of Robotics · March 2011 Cite

Kalman smoother based force localization and mapping using intravital video microscopy

Journal Article Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME · November 30, 2010 Motility is an important property of immune system cells. It provides cells with the ability to perform their function not only at the right time but also at the right place. In this paper, we introduce the problem of modeling and estimating an effective f ... Full text Cite

Segregation of heterogeneous units in a swarm of robotic agents

Journal Article IEEE Transactions on Automatic Control · March 1, 2010 There are several examples in natural systems that exhibit the self-organizing behavior of segregation when different types of units interact with each other. One of the best examples is a system of biological cells of heterogeneous types that has the abil ... Full text Cite

Intelligent Sensor Uncertainty Modeling Techniques and Data Fusion

Journal Article International Journal of Control and Intelligent Systems · 2009 This paper presents a novel strategy to develop a sensor model based on a probabilistic approach that would accurately provide information about individual sensor's uncertainties and limitations. The strategy also establishes the dependence of sensor's unc ... Cite

Stochasticity as a Driving Force in Self-Organization of Robotic Swarms

Journal Article IEEE Transactions on Robotics · 2009 Cite

A method for judicious fusion of inconsistent multiple sensor data

Journal Article IEEE Sensors Journal · May 1, 2007 One of the major problems in sensor fusion is that sensors frequently provide spurious observations which are difficult to predict and model. The spurious measurements from sensors must be identified and eliminated since their incorporation in the fusion p ... Full text Cite

Stochastic adaptive sensor modeling and data fusion

Journal Article Proceedings of SPIE - The International Society for Optical Engineering · July 20, 2006 One of the major problems in sensor fusion is that sensors frequently provide spurious observations which are difficult to predict and model. The spurious data from sensors must be identified and eliminated from the sensor fusion since its incorporation in ... Full text Cite

Grasp planning for a two-fingered parallel-jawed gripper

Conference American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2006 The main emphasis of this paper is on grasp planning for a two-fingered parallel jawed gripper (typically used in industries) utilizing visual feedback for improved grasping for a planar object. Appropriate placement of fingers on the object plays an impor ... Full text Cite

Petri Net based modeling and control strategies for flexible manufacturing systems

Conference American Society of Mechanical Engineers, Manufacturing Engineering Division, MED · 2006 This paper presents comprehensive and unified strategies to model, analyze, and control flexible manufacturing systems (FMSs) in an uncertain and dynamic environment using Petri Net (PN) based modeling. The proposed methodology enables PN models to accept ... Full text Cite

Intelligent sensor modeling and data fusion via neural network and maximum likelihood estimation

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · December 1, 2005 The major thrust of this paper is to develop a sensor model based on a probabilistic approach that could accurately provide information about individual sensor's uncertainties and limitations. The sensor model aims to provide a most informative likelihood ... Full text Cite

Neuro-fuzzy control applied to multiple cooperating robots

Journal Article Industrial Robot · June 27, 2005 Purpose - The paper aims to advance methodologies to optimize fuzzy logic controller parameters via neural network and use the neuro-fuzzy scheme to control two cooperating robots. Design/methodology/approach - The paper presents a special neural network a ... Full text Cite

Sensor-based estimation and control of forces and moments in multiple cooperative robots

Journal Article Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME · June 1, 2004 Control of multiple robots presents numerous challenges, some of which include synchronization in terms of position, motion, force, load sharing and internal force minimization. This paper presents formulation and application of a fuzzy logic based strateg ... Full text Cite

Three-dimensional occupancy grids with the use of vision and proximity sensors in a robotic workcell

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2004 This paper discusses the use of multiple vision sensors and a proximity sensor to obtain three-dimensional occupancy profile of robotic workspace, identify key features, and obtain a 3-D model of the objects in the work space. The present research makes us ... Cite

Neural network based intelligent learning of fuzzy logic controller parameters

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2004 Design of an efficient fuzzy logic controller involves the optimization of parameters of fuzzy sets and proper choice of rule base. There are several techniques reported in recent literature that use neural network architecture and genetic algorithms to le ... Cite

Genetic Q-Fuzzy based intelligent control for mobile robot navigation

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2004 This paper deals with the design and optimization of a Fuzzy Logic Controller that is used in the obstacle avoidance and path tracking problems of mobile robot navigation. The Fuzzy Logic controller is tuned using reinforcement learning controlled Genetic ... Cite

Structural damping and vibration control via smart sensors and actuators

Journal Article JVC/Journal of Vibration and Control · December 1, 2003 In this paper we emphasize several advances recently made in the area of structural damping aimed towards reducing, and preferably eliminating, mechanical vibrations. First, a few commonly encountered undesirable effects of vibrations on structures are dis ... Full text Cite

Structural vibration suppression via active/passive techniques [4]

Journal Article Journal of Sound and Vibration · May 1, 2003 Full text Cite

Component assemblies in a flexible work-cell via intelligent control

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2003 The requirement to quickly change a product, the need to deliver high quality component, and a desire to reduce manufacturing related costs has led to the development of flexible work-cells. Integration of different sensors along with the careful selection ... Cite

Fuzzy logic control of a laboratory magnetic levitation system

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2003 This paper deals with the Fuzzy Logic control of a Magnetic Levitation system available in the Robotics and Control Laboratory at Duke University. The laboratory Magnetic Levitation system primarily consists of a metallic ball, an electromagnet and an infr ... Cite

Optimization techniques applied to multiple manipulators for path planning and torque minimization

Journal Article Engineering Applications of Artificial Intelligence · June 1, 2002 This paper presents the formulation and application of a strategy for the determination of an optimal trajectory for a multiple robotic configuration. Genetic Algorithm (GA) and Simulated Annealing (SA) have been used as the optimization techniques and res ... Full text Cite

Genetic algorithm based PD control and fuzzy logic control of a two link robot

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2002 This paper presents two schemes for the control of robotic manipulator systems. The first method is based on proportional plus derivative (PD) control with the PD controller gain parameters optimized via Genetic Algorithm (GA). The cost function (or perfor ... Cite

Influence of model inaccuracies on the prediction of dynamic system peformance

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2002 A good understanding of system dynamics is imperative to the design of any control strategy. Results of inaccurate models can lead to inefficient controls. However, the formulation of an accurate dynamic model requires high computational power and hence va ... Cite

Neural network based intelligent control and PID control of a magnetic levitation system

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2002 In order to control a system effectively, the system must be modeled accurately. Frequently, the non-linearities present in system dynamics make the control task difficult. Sometimes it is a real challenging task to come up with a true dynamic model of the ... Cite

Adaptive control strategies for coordination and control of mutliple robots

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2002 The uncertainty associated with the robot dynamics for performing contact tasks have often necessitated the use of adaptive algorithms. This paper investigates the use of adaptive control and impedance control for a difficult contact task involving multipl ... Cite

Fuzzy logic based intelligent control and optimal control of a rotary inverted pendulum system

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2002 In this paper a fuzzy logic based control strategy has been applied to balance an inverted pendulum. An inverted pendulum in itself is a highly unstable system since there is always some external disturbance present that makes it to fall. Therefore, to mai ... Cite

Temporal difference approach to coordinated motion control of cooperating two link robots

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2002 To perform complex manufacturing operations, two or more manipulators are made to work in concert. When robots work independently of other robots, small errors made (e.g., due to inaccuracies in modeling of the manipulator) by individual robots may be acce ... Cite

Optimal path planning and torque minimization via genetic algorithm applied to cooperating robotic manipulators

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 2002 This paper presents the formulation and application of a genetic algorithm based strategy for the determination of an optimal trajectory for a multiple robotic configuration. First, the motivation for multiple robot control and the current state-of-art in ... Cite

Health Monitoring and Reliability of Adaptive Heterogeneous Structures

Journal Article International Journal on Structural Health Monitoring · 2002 New adaptive structural systems comprised of optimal material combinations, innovative sensors and actuators, and control subsystems need to be developed and tailored for damage tolerant applications associated with severe loading conditions and harsh envi ... Cite

Adaptive Control Strategies for Coordination and Control of Dual Robotic Arms Manipulating a Common Load

Journal Article Proceedings of the ASME/IMECE · November 2001 Cite

Current and potential future research activities in adaptive structures: An ARO perspective

Journal Article Smart Materials and Structures · August 1, 2001 The Army Research Office (ARO) has been supporting projects focusing on basic research in the area of smart materials and adaptive structures over recent years. A major emphasis of the ARO's Structures and Dynamics Program has been on the theoretical, comp ... Full text Cite

Suggestions for Skillful Proposal Writing

Journal Article Journal of Intelligent Material Systems and Structures · June 2001 This brief paper is written to provide instructions and suggestions for preparing research proposals for possible funding. Whereas the emphasis of the present document is on the funding process used by the Army Research Office (ARO), the suggestio ... Full text Cite

Recent Developments in Research on Intelligent Machines

Journal Article Proceedings of the ASME/DSCD · November 2000 Cite

<title>Research in active composite materials and structures: an overview</title>

Journal Article SPIE Proceedings · June 14, 2000 Full text Cite

A numerical optimization approach for tuning fuzzy logic controllers.

Journal Article IEEE transactions on systems, man, and cybernetics. Part B, Cybernetics : a publication of the IEEE Systems, Man, and Cybernetics Society · January 1999 This paper develops a method to tune fuzzy controllers using numerical optimization. The main attribute of this approach is that it allows fuzzy logic controllers to be tuned to achieve global performance requirements. Furthermore, this approach allows des ... Full text Cite

Developments in nonlinear control system synthesis research

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 1998 The control of nonlinear systems presents a particularly challenging problem for engineers since the dynamics of such systems is inherently complex. The principle of superposition does not hold, and the dynamic response is generally initial condition speci ... Cite

Design of a Fuzzy Logic Based Robotic Admittance Controller

Journal Article Intelligent Automation and Soft Computing · January 1, 1998 A fuzzy logic based admittance control approach is proposed for the control of robotic end-effector forces occurring during a typical automated robotic manufacturing task. The proposed admittance control approach provides the necessary nonlinear control ac ... Full text Cite

Artificial neural network based robot control: An overview

Journal Article Journal of Intelligent and Robotic Systems: Theory and Applications · January 1, 1996 The current thrust of research in robotics is to build robots which can operate in dynamic and/or partially known environments. The ability of learning endows the robot with a form of autonomous intelligence to handle such situations. This paper focuses on ... Full text Cite

An application of fuzzy logic control to a gimballed payload on a space platform

Journal Article Information Sciences - Applications · January 1, 1995 This paper will present results of applying two autonomous fuzzy controllers to a dynamically coupled system. The system consists of a space platform and a gimballed payload. The controllers are developed with the systems decoupled. Parametric studies are ... Full text Cite

A labeled object identification system using multilevel neural networks

Journal Article Information Sciences - Applications · January 1, 1995 This paper describes the design of a neural network based labeled object identification system, to be used for product classification at the final inspection stage of an IBM personal computer manufacturing line. The objective was to design and identificati ... Full text Cite

Dynamical System Control Using Neural Networks: Cooperative Dual Robot Manipulator Control

Journal Article Computer Aided System Design and Simulation · 1994 Cite

Neurocontrol of cooperative dual robot manipulators

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 1993 An approach to the control of cooperative dual manipulator systems using an artificial neural network based control strategy is presented. The neural network based method augments the decentralized local joint linear control of two SCARA type IBM 7540 robo ... Cite

Training backpropagation and CMAC neural networks for control of a SCARA robot

Journal Article Engineering Applications of Artificial Intelligence · January 1, 1993 The dynamic control of a robotic manipulator is accomplished by the computation and application of actuating torques required for the manipulator to follow desired trajectories. A considerable amount of work has been reported in the literature concerning t ... Full text Cite

Control of a scara robot using a CMAC based neural controller

Journal Article American Society of Mechanical Engineers, Production Engineering Division (Publication) PED · 1992 The dynamic control of a robotic manipulator is accomplished by the computation and application of actuating torques required for the manipulator to follow desired trajectories. Considerable amount of work has been reported in the literature concerning the ... Cite

Camera-robot transform for vision-guided tracking in a manufacturing work cell

Journal Article Journal of Intelligent and Robotic Systems · January 1, 1992 The problem of camera calibration from the perspective of hand-eye integration (henceforth referred to as the Camera-Robot (CR) problem), is addressed in this paper. Mapping results obtained from a least-squares fit using pseudo-inverse technique and a thr ... Full text Cite

Multiple robot coordination with vision and force sensing

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 1992 Multiple robot arm cooperation involves a variety of difficult problems in dynamics, control, controller architecture, distributed and parallel processing and interprocessor communication. This paper discusses the relevant issues related to some of these t ... Cite

Supervisory control for co-ordination of multiple robots†

Journal Article International Journal of Systems Science · January 1, 1992 This paper deals with a solution of supervisory control problem for co-ordination of multiple robots. The application of two or more robots employed in a co-operating mode can increase the level of flexibility and productivity in an automated manufacturing ... Full text Cite

Adaptive Control of Nonlinear Dynamic SCARA Type of Manipulators

Journal Article Robotica · July 1991 SUMMARYThis paper deals with an investigation of the relative importance of robotic characteristics typically associated with nonlinear manipulators. An IBM 7540 SCARA type of robot is used for simulation, and results are p ... Full text Cite

Sensor integration for payload weight estimation in a robotic work cell

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 1991 The objective of this paper is twofold - the calibration of a force/torque sensor and its integration into the robotic work cell, and the development of an exploratory procedure such as payload weight estimation that aids stable grasping of 'unknown' paylo ... Cite

Genetic engineering and pollution control

Journal Article Chemical Engineering Progress · May 1, 1990 The uses of microbes for pollution control are examined. Current research and applications of genetically engineered microbes are discussed. In addition, regulatory and ecological issues are outlined. ... Cite

The near time-optimal motion control of robotic manipulators

Journal Article Journal of the Franklin Institute · January 1, 1990 The development of strategies for near time-optimal motion control of robotic manipulators is discussed. A PUMA 560 three degree-of-freedom industrial robot is used for computer simulation of algorithm. A quintic polynomial describes the trajectory of the ... Full text Cite

Coordinated control of cooperating robotic manipulators

Journal Article International Journal of Systems Science · January 1, 1990 The feasibility and controllability of coordinated robotic systems are considered. Against a background of cooperating robots, multiple robot control is discussed. Economic and other motivations for using coordinated robots are outlined and the difficultie ... Full text Cite

Microbial Biotechnology's Role in Pollution Control

Journal Article The Environmental Manager · 1990 Cite

Multi-arm Coordination and Control

Journal Article Dynamics and Control of Multibody/ Robotic Systems with Space Applications · December 1989 Cite

Global stability of solutions of non-linear control systems

Journal Article International Journal of Systems Science · January 1, 1989 The stability of solutions for non-linear control systems in the entire phase space is investigated. It is shown that for determining the global stability of motion, it is necessary to first obtain a single scalar equation from the specified system, and on ... Full text Cite

Robust Control Strategies for Large Space Structure

Journal Article NASA Contractor Report No. 178368 · September 1987 Cite

OPTIMAL CONTROL STRATEGIES FOR RACE CARS SUBJECTED TO DISCRETE TRACK IRREGULARITIES.

Journal Article American Society of Mechanical Engineers (Paper) · 1987 Modern race cars making use of aerodynamic effects to achieve better surface traction have typically been plagued by the problem of ride height instability caused primarily by road surface disturbances and the aerodynamic 'negative spring' phenomenon. In t ... Cite

PATH PLANNING AND COLLISION AVOIDANCE FOR A FIVE DEGREE OF FREEDOM ROBOT.

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 1987 This paper describes the kinematic and dynamic modeling, path planning, and collision avoidance of a CYBOT robot. The position control feedback used is achieved via a set of optical encoders used with each of the five drive motors. The electronic control m ... Cite

Automation and import policies and the textile industry

Journal Article American Society of Mechanical Engineers (Paper) · 1987 This paper deals with the impacts of import policies and automation on the textile industry. The methodology employed uses the tools of dynamic system analysis. A preliminary mathematical model of the textile industry incorporating dynamic interactions wit ... Cite

IMPACT OF AUTOMATION AND COMPUTER-INTEGRATED MANUFACTURING ON INDUSTRIAL EMPLOYMENT.

Journal Article American Society of Mechanical Engineers (Paper) · 1986 This paper examines the relationship between industrial productivity and employment, and the utilization of the emerging technologies in automation and computer-integrated manufacturing. These technologies include robotics and other programmable techniques ... Cite

MULTINATIONAL CORPORATIONS AND THE TRANSFER OF TECHNOLOGY IN SOUTH AFRICA.

Journal Article American Society of Mechanical Engineers (Paper) · 1985 In this paper, the role of multinational corporations in the process of technology transfer to a host country is examined. The multinational corporations have recently figured prominently in debates on national economic policy, international trade, and bus ... Cite

CONTROLLERS FOR AUTOMATED ASSEMBLY OPERATIONS.

Journal Article American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC · 1985 This paper deals with the application of force feedback in automated insertion type of assembly processes. First, the background of developments reported in literature directed towards the solution of this problem are presented. Next, a general two-dimensi ... Cite

PROMISE OF BIOMASS ENERGY CONVERSION IN NORTH CAROLINA.

Journal Article American Society of Mechanical Engineers (Paper) · 1984 A discussion is presented on the use of both freshwater biomass and marine biomass (e. g. , Porphyra or Macrocystis Pyrifera) for energy conversion. The potential of using North Carolina's lakes, streams and coastal waters for aquatic plant farming is pres ... Cite

Utilization of Participating Electronic Technology in Group Communication and Decision-making Process

Journal Article 23rd Annual Forum of the Association of Institutional Research · May 1983 Cite

RECENT DEVELOPMENTS IN LOW-HEAD HYDROELECTRIC POWER GENERATION.

Journal Article American Society of Mechanical Engineers (Paper) · 1983 Cite

TECHNOLOGY TRANSFER OF HEALTH CARE SERVICES IN RURAL ENVIRONMENTS.

Journal Article American Society of Mechanical Engineers (Paper) · 1982 Cite

Modeling and Dynamic Response of Maglev Vehicles Subjected to Crosswind Gusts

Journal Article Journal of Dynamic Systems, Measurement, and Control · September 1, 1981 This paper presents a two-degree-of-freedom model for magnetically levitated finite-length vehicles incorporating sway and yaw dynamics. Aerodynamic lateral forces and yawing moments on the vehicle resulting from constant speed wind gusts are compu ... Full text Cite

DETRIMENTAL IMPACTS OF VIBRATION EXPOSURE IN INDUSTRIAL-OCCUPATIONAL ENVIRONMENTS.

Journal Article American Society of Mechanical Engineers (Paper) · 1981 An overview of occupational vibration studies in the United States is presented. The studies indicated significant levels of whole-body and hand-arm vibration exposures. The modeling and measuring approach of standing humans subjected to vibratory inputs i ... Cite

Piecewise Linear Approximation of Nonlinear Forces and Moments Resulting from Crosswind Gusts Applied to Magnetically Levitated Vehicles

Journal Article Advances in Aerospace Structures and Materials · 1981 Cite

MODELING AND DYNAMIC RESPONSE OF MAGLEV VEHICLES SUBJECTED TO CROSSWIND GUSTS.

Journal Article American Society of Mechanical Engineers (Paper) · 1980 This paper presents a two-degree-of-freedom model for magnetically levitated finite-length vehicles incorporating sway and yaw dynamics. Aerodynamic lateral forces and yawing moments on the vehicle resulting from constant speed wind gusts are computed usin ... Cite

SOLAR ALTERNATIVE AND THE NATIONAL ENERGY PLAN

Journal Article MECHANICAL ENGINEERING · 1979 Cite

Developments in Nonlinear Controller Synthesis: An Overview

Journal Article Journal of Dynamic Systems, Measurement, and Control · March 1, 1978 In this paper developments in nonlinear controller synthesis techniques are surveyed. First, the use of functional analysis approach for system synthesis is discussed. Next, the application of intentional nonlinear controllers for performance impro ... Full text Cite

Frequencies of Annular Plate and Curved Beam Elements

Journal Article AIAA Journal · March 1978 Full text Cite

Policy implications of solar technology in the [United States] National Energy Plan

Journal Article Sun: Mankind's Future Source of Energy · 1978 Global and national energy supply and demand situation are reviewed briefly. Developments leading to the evolution of a national energy policy are discussed. The role of solar energy technology and its emphasis in the National Energy Plan are presented, an ... Cite

EDUCATIONAL DECISION-MAKING THROUGH ELECTRONIC PARTICIPATORY TECHNOLOGY - MODEL-SYSTEMS APPROACH

Journal Article JOURNAL OF INTERDISCIPLINARY MODELING AND SIMULATION · 1978 Cite

NATIONAL ENERGY PLAN AND SOLAR ENERGY TECHNOLOGY.

Journal Article American Society of Mechanical Engineers (Paper) · 1978 Consideration of the solar energy component of the National Energy Plan. The Plan recognizes the potential of solar energy technology to share increased burden on nonrenewable resources imposed upon by a sustained economic growth. Federal government has de ... Cite

Technology for School Communication

Journal Article N.C. Education: Journal of the NCAE · 1978 Cite

WHEELSET LATERAL DYNAMIC ANALYSIS USING THE DESCRIBING FUNCTION TECHNIQUE.

Journal Article American Society of Mechanical Engineers (Paper) · 1977 This paper deals with the analysis and dynamic modeling of railway wheelsets moving on straight regular tracks. The describing function method of analysis is applied to investigate the influence of parametric variations on wheelset critical velocity. In ad ... Cite

Transient Dynamics of Curved Guideway Structures for Urban Vehicles

Journal Article American Institute of Aeronautics and Astronautics · 1977 Cite

Comprehension of societal impacts via technology assessment

Journal Article Trans. ASME, G, J. Dyn. Syst. Meas. Control (USA) · 1976 The general framework of interactions between technology and individual human beings, and between technology and society, is discussed. The principles underlying the process of technology assessment are presented, and the existing methodologies are describ ... Cite

VERTICAL MODE HUMAN BODY VIBRATION TRANSMISSIBILITY.

Journal Article IEEE Transactions on Systems, Man and Cybernetics · 1976 Frequency response of standing humans subjected to sinusoidal vibration is presented. The vibratory input was a vertical displacement to the feet, and the output was the corresponding vertical response of the head. Twelve subjects (eight male and four fema ... Cite

Guest Editorial for Special Issue on Ecological and Socio-Economic Systems

Journal Article Journal of Dynamic Systems, Measurement, and Control, Transactions of the ASME · 1976 Cite

TECHNOLOGY ASSESSMENT AND SOCIAL CHOICE: A POLICY-ORIENTED COURSE.

Journal Article American Society of Mechanical Engineers (Paper) · 1975 The need for and the objectives of an interdisciplinary course EM DASH Technology Assessment and Social Choice EM DASH are discussed. The course was designed to aid the engineering curriculum to become more relevant to societal problems and to enhance stud ... Cite

Delphi technique in an educational environment

Journal Article International Journal of Systems Science · January 1, 1975 This paper discusses the importance of technological forecasting as a planning and decision making tool. The basic Delphi methodology is briefly described and its variations summarized. Outline of an experiment conducted with Delphi in a classroom environm ... Full text Cite

NONLINEAR ANALYSIS OF FLUID SUSPENSIONS FOR TRACKED AIR CUSHION VEHICLES.

Journal Article High Speed Ground Transportation Journal · 1975 Nonlinear modeling of vehicle air cushion suspensions in heave mode is discussed. Comparisons are made with the small perturbation linearized models to determine the range of input disturbances, and cushion configurations for which the linear model provide ... Cite

Absolute stability results for non-linear systems using logarithmic plots

Journal Article International Journal of Control · January 1, 1975 Absolute stability of non-linear systems is examined using the conventional techniques, and a. representation of Popov line in the logarithmic gain and phase versus frequency plane. A grapbo-analytical procedure is advanced for the Popov line transference ... Full text Cite

On the a-posteriori error bounds for the solution of ordinary nonlinear differential equations

Journal Article Comput. Math. Appl. (UK) · 1975 This paper advances a procedure to compute the a-posteriori error bounds for the solution of a wide class of ordinary differential equations with given initial conditions. The method is based on an iterative scheme which yields upper and lower bounds which ... Full text Link to item Cite

A path identification procedure for networks

Journal Article Trans. ASME, G, J. Dyn. Syst. Meas. Control (USA) · 1974 A generalised procedure has been advanced for path identification in complex multiloop interconnected directed networks. Reference to transportation networks has been made for sake of specificity in this paper although the proposed method is equally applic ... Cite

SYNTHESIS OF OPTIMAL CONTROLLERS FOR NONLINEAR SYSTEMS USING SUPPLEMENTAL OBSERVERS.

Journal Article Advances in Instrumentation, Proceedings · 1974 The paper deals with an analytical procedure for the synthesis of optimal controllers for multivariable dynamical systems. The technique uses an iterative linearization scheme about sequentially located points. The resulting feedback gains for the controll ... Cite

SOCIETAL SYSTEMS COURSE ON TECHNOLOGY ASSESSMENT.

Journal Article IEEE Transactions on Education · 1974 In this paper, the needs for an interdisciplinary societal program are first discussed. The format and philosophy of such a program are illustrated by a course in technology assessment and social choice. Typical exercises and principal areas of research fo ... Cite

SOCIO-DEMOGRAPHIC IMPACTS OF GENETIC DEFECT INCIDENCE USING GENETIC COUNSELING.

Journal Article RCA Technical Notes · 1974 The paper has advanced a genetic disease incidence model using DYNAMO language. The model takes into account factors such as inbreeding, selection pressure, mutation pressures, and genetic drift, as modification to the basic random mating process. The role ... Cite

PATH IDENTIFICATION PROCEDURE FOR NETWORKS

Journal Article MECHANICAL ENGINEERING · 1974 Cite

Forum on Ground Transportation

Journal Article Journal of Dynamic Systems, Measurement, and Control, Transactions of the ASMEq · 1974 Cite

QUANTITATIVE ESTIMATION OF FLUID CONTROL SYSTEM PARAMETERS.

Journal Article ZIS Mitteilungen · 1973 An analytical approach is outlined for a quantitative estimation of parameters of a fluid control system. A general polynomial in terms of integer powers of the input is assumed to represent the output of the fluid system. Structural parameters of the math ... Cite

CONTROL STRATEGY FOR SPATIAL TRADE MODELS INCORPORATING TRANSPORTATION COSTS.

Journal Article Wyoming University, Water Resources Research Institute, Water Resources Series · 1973 A spatial trade model consisting of several suppliers and markets for shipping and receiving a commodity is examined under an assumption of perfect competition. The proposed dynamic model incorporates the effects of transportation costs separating supplier ... Cite

Limit cycle analysis for control systems of high order

Journal Article Int. J. Control (UK) · 1973 A generalized method for the limit cycle analysis of a class of nth-order systems is proposed. The method utilizes the describing function technique and is applicable to dynamical systems with both memoryless and with memory non-linearities. The critical g ... Cite

SUBOPTIMAL DESIGN OF A CLASS OF NONLINEAR CONTROLLERS.

Journal Article Wyoming University, Water Resources Research Institute, Water Resources Series · 1973 A systematic design procedure is presented for suboptimal nonlinear controller synthesis. Such a control yields faster response characteristics than are normally possible with a linear controller. The technique is geared to single-input linear systems wher ... Cite

PATH IDENTIFICATION PROCEDURE FOR NETWORKS.

Journal Article American Society of Mechanical Engineers (Paper) · 1973 A generalized procedure has been advanced for path identification in complex multiloop interconnect directed networks. Reference to transportation networks has been made for the sake of specificity in this paper although the proposed method is equally appl ... Cite

TRACKED AIR CUSHION VEHICLE SUSPENSION MODELS: ANALYSIS AND COMPARISON.

Journal Article Vehicle System Dynamics · 1973 Several dynamical models of fluid suspensions for tracked air cushion vehicles are analyzed and compared. Specifically, the models considered conform to: a fifth-order linear suspension, a nonlinear configuration with a constant supply pressure, a nonlinea ... Cite

Suboptimal design of a class of nonlinear controllers

Journal Article Trans. ASME, G, J. Dyn. Syst. Meas. Control (USA) · 1973 A systematic design procedure is presented for suboptimal nonlinear controller synthesis. Such a control yields faster response characteristics than are normally possible with a linear controller. The technique is geared to single-input linear systems wher ... Cite

NONLINEAR MODELING AND DYNAMIC SIMULATION OF VEHICLE AIR CUSHION SUSPENSIONS

Journal Article MECHANICAL ENGINEERING · 1973 Cite

LIMIT CYCLE ANALYSIS OF CONTROL SYSTEMS WITH MULTIPLE NON-LINEARITIES.

Journal Article International Journal of Control · 1972 A generalized procedure is presented by which the existence and stability of limit cycles can be examined in a single-loop feedback system with multiple memory-less non-linear characteristics. The method is based upon the describing function technique and ... Cite

DYNAMICS OF A NON-LINEAR SPATIAL TRADE MODEL.

Journal Article International Journal of Systems Science · 1972 This paper deals with a non-linear economic model consisting of a collection of suppliers and markets. The markets and suppliers are assumed to be separated by a constant transport cost. A social payoff function is proposed. The existence, uniqueness, and ... Cite

STABILITY BOUNDS FOR NONLINEAR SYSTEMS DESIGNED VIA FREQUENCY DOMAIN STABILITY CRITERIA.

Journal Article Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME · 1972 Cite

COMPARATIVE STUDY OF THE NONLINEAR AND LINEAR PERFORMANCE OF VEHICLE AIR CUSHION SUSPENSIONS USING BOND GRAPH MODELS.

Journal Article Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME · 1972 Cite

PARAMETER ESTIMATION OF NON-LINEAR DYNAMICAL SYSTEMS.

Journal Article International Journal of Control · 1972 A computational scheme is proposed for modeling nonlinear dynamical systems using a polynomial form representation. The model output is expressed as a sum of each state raised to negative or positive integer powers. Subsequently, based solely upon the inpu ... Cite

On the absolute stability of nonlinear control systems using notch compensators

Journal Article ISA Trans. (USA) · 1971 This paper discusses the design of general symmetric and unsymmetric notch compensator structures for nonlinear systems of Aizerman's type. Absolute stability is used as the constraint condition and the Popov and circle criteria are applied for compensator ... Cite

A compensator design technique for control systems with time-varying nonlinear elements

Journal Article J. Franklin Inst. (UK) · 1971 A method is advanced for the design of linear controllers for a class of nonlinear systems. The systems considered in this paper are characterized by the presence of a dominant nonlinearity located in a specified sector. The proposed approach is digital-co ... Cite

A computer-oriented, parameter-space approach to the synthesis of nonlinear control systems

Journal Article Trans. ASME, G, J. Dyn. Syst. Meas. Control (USA) · 1971 A systematic synthesis procedure is developed for ensuring an absence of limit cycles in nonlinear systems. Compensator parameter plots, subject to specified constraints, are generated in parameter planes. These plots can be combined to yield design surfac ... Cite

Application of three-mode controllers for nonlinear system synthesis

Journal Article IEEE Trans. Autom. Control (USA) · 1971 A compensator design scheme illustrating the application of a proportional plus integral plus derivative (PID) control action for absolute stability of nonlinear systems is presented. The proportional plus integral (PI) and PID control actions are compared ... Cite

A Popov-criterion-based algorithm for control system synthesis using non-linear compensators

Journal Article Int. J. Control (UK) · 1971 A procedure for the design of non-linear compensators for automatic control systems is presented. Asymptotic stability in the large (ASIL) is chosen as the constraint condition. The Popov criterion forms the basis for ensuring ASIL. Two examples illustrate ... Cite

A synthesis technique for nonlinear control systems using a frequency domain stability criterion

Journal Article Trans. ASME, D, J. Basic Eng. (USA) · 1970 This paper deals with a design approach to the synthesis of controllers for nonlinear control systems. The method proposed herein uses the frequency domain circle condition as a sufficiency criterion for insuring absolute stability. While the theory involv ... Cite

Effect of temperature on moulded friction materials

Journal Article Institution of Engineers, Australia -- Journal · 1965 Experimental investigation of dependence on temperature of dynamic coefficient of friction of commercially available materials transmitting friction force in clutches and brakes is described; it was found that coefficient of friction starts decreasing at s ... Cite

Strength of Square Key for Fastening Hub to Shaft

Journal Article Journal of the Institution of Engineers (India) · 1965 Cite

The theory and use of the analogue computer in solving vibration problems

Journal Article Journal of the Institution of Engineers (India), Electrical Engineering Division · 1964 Electronic analogue computers are relatively simple devices used to perform mathematical computation automatically. In this paper, an attempt is made to introduce to the readers the use of analogue computers in a simple way. Analogue and digital computers ... Cite