Michael Candon

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2026 · January 1, 2026 Numerical simulation of the transonic shock buffet phenomenon remains a formidable challenge due to its inherent nonlinear and unsteady characteristics. These difficulties are further compounded in three-dimensional configurations and when aeroelastic coup ... Full text Cite

Wall-Modeled Unstructured Single-Step and Simplified Lattice Boltzmann Method for Turbulent Flows in Curved Boundaries

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2026 · January 1, 2026 This work presents an efficient unstructured CFD solver based on the Single-Step and Simplified Lattice Boltzmann Method (SSLBM), extended with a wall model to create a wall-modeled USSLBM framework (WM-USSLBM). The solver enables simulations of turbulent ... Full text Cite

Identification of Low-Order Unsteady Aerodynamic Models for Store Release in Transonic Flow

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2026 · January 1, 2026 This work investigates two low-order modelling strategies, namely dynamic derivatives and impulse response functions (IRFs), for predicting the quasi-steady/unsteady aerodynamic loads on a store during release into a freestream and, ultimately, more effici ... Full text Cite

Aeroelastic response of an airfoil with structural freeplay in transonic buffeting flow

Journal Article Journal of Fluids and Structures · January 1, 2026 Transonic shock buffet is a nonlinear, unsteady aerodynamic phenomenon characterized by self-sustained, periodic shock oscillations that can critically affect aircraft structural integrity. While the aerodynamic aspects of shock buffet have been widely stu ... Full text Cite

High-Fidelity Aeroelastic Predictions of a Very FlexibleWing

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2026 · January 1, 2026 Air pollution and global warming are intensifying the need for lower-impact aviation technologies, motivating the development of highly flexible wings that offer significant potential for fuel-efficiency improvements. These configurations, however, present ... Cite

Nonlinear Aeroelastic Reduced Order Modeling with Optimized Sparse Multi-Input Volterra Kernels

Journal Article AIAA Journal · September 1, 2025 Nonlinear unsteady aerodynamic reduced-order models (ROMs) based on machine learning or artificial intelligence algorithms can be complex and computationally demanding to train, meaning that for practical aeroelastic applications, the conservative nature o ... Full text Cite

Stall Flutter of the Benchmark Supercritical Wing Using Aeroelastic Model Reduction and Tunable Turbulence Parameters

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2025 · January 1, 2025 This paper investigates the flutter mechanism of the benchmark supercritical wing at Mach 0.8 with the angle-of-attack (AOA) at 1◦, 3◦ and 5◦. Nonlinear unsteady aerodynamic reduced order models (ROMs) are used which are tr ... Full text Cite

A Data-driven Approach in Real-time Trajectory Prediction of Store Release from Cavity

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2025 · January 1, 2025 The release of stores from internal carriage configurations in modern aircraft requires precise modeling due to the highly unsteady flow dynamics involved. Traditional methods for predicting store trajectories are often computationally intensive, making re ... Full text Cite

Transonic Buffet and Stall Flutter Predictions with a Tunable Turbulence Model for AePW-4

Conference AIAA Aviation Forum and Ascend 2025 · January 1, 2025 This paper presents progress towards the Fourth Aeroelastic PredictionWorkshop (AePW-4) High-Angle Working Group (HAWG) and Buffet Working Group (BWG) by the team from RMIT University in collaboration with ANSYS Inc. The HAWG is concerned with modeling tra ... Full text Cite

The Interaction Between Shock Buffet and Freeplay Nonlinearity: A Numerical Investigation

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2025 · January 1, 2025 The aeroelastic interaction between shock buffet and freeplay-induced nonlinear structural dynamics has not yet been studied in the literature. This paper presents preliminary findings on the topic, focusing on numerical simulations of a two-degree-of-free ... Full text Cite

Optimal Sparsity in Nonlinear Nonparametric Reduced Order Models for Transonic Aeroelastic Systems

Journal Article AIAA Journal · October 1, 2024 Machine learning and artificial intelligence algorithms typically require a large amount of data for training. This means that for nonlinear aeroelastic applications, where small training budgets are driven by the high computational burden associated with ... Full text Cite

Parameterization of nonlinear aeroelastic reduced order models via direct interpolation of Taylor partial derivatives

Journal Article Nonlinear Dynamics · October 1, 2024 The identification of optimally sparse Taylor partial derivatives presents a new opportunity in efficient nonlinear model reduction for complex aeroelastic systems. Unfortunately, for this class of reduced order model (ROM), the robustness that is observed ... Full text Cite

Evaluation of Generalised Forces Using CFD-Based Methods for Efficient Linear/Nonlinear Simulations

Conference AIAA Scitech Forum and Exposition 2024 · January 1, 2024 The development of efficient and accurate Reduced-Order Models (ROMs) for transonic aeroelastic systems with freeplay poses a significant challenge for aeroelasticians, requiring linearization of both nonlinear structural and aerodynamic systems. In this p ... Full text Cite

Aerodynamic loads estimation on a Twin Vertical-Tail configuration based on the Single-Step Lattice Boltzmann Method Simulation

Conference AIAA Scitech Forum and Exposition 2024 · January 1, 2024 In this work, an efficient CFD simulation of the turbulent flow produced in a generic deltawing model with a twin vertical-tail configuration is presented. The simulation is conducted at multiple high angles of attack to estimate the aerodynamic loads perc ... Full text Cite

Optimal Sparsity in Nonlinear Reduced Order Models Applied to an All-Movable Wing with Freeplay in Transonic Flow

Conference AIAA Scitech Forum and Exposition 2024 · January 1, 2024 Machine learning and artificial intelligence algorithms typically require large amount of data for training. This means that for nonlinear aeroelastic applications, where small training budgets are driven by the high computational burden associated with ge ... Full text Cite

PARAMETERISATION OF NONLINEAR AEROELASTIC REDUCED ORDER MODELS WITH AERODYNAMIC AND STRUCTURAL NONLINEARITY

Conference Icas Proceedings · January 1, 2024 Optimally sparse Taylor partial derivatives opens up exciting avenues for efficiently reducing the complexity of aeroelastic systems through nonlinear modelling. However, within this category of reduced order models (ROMs), the robustness observed in the l ... Cite

An All-Movable Horizontal Tail Numerical Model for Freeplay Prognostics

Conference AIAA Scitech Forum and Exposition 2024 · January 1, 2024 The paper describes the development of a synthetic dataset and prognostic approach for aircraft control surface freeplay degradation. A reproducible dataset of freeplay growth representative of in-flight regimes and aircraft mission profiles is generated. ... Full text Cite

Advanced multi-input system identification for next generation aircraft loads monitoring using linear regression, neural networks and deep learning

Journal Article Mechanical Systems and Signal Processing · May 15, 2022 Over the past decade, the ideologies surrounding Structural Health Monitoring (SHM) have shifted drastically within the aerospace engineering disciplines, predominantly onus to rapid advancements in machine intelligence. While traditional SHM practices are ... Full text Cite

A nonlinear signal processing framework for rapid identification and diagnosis of structural freeplay

Journal Article Mechanical Systems and Signal Processing · January 15, 2022 Structural freeplay due to loosened mechanical linkages is a discrete nonlinear event which occurs pseudo-routinely in modern aircraft, causing severe airframe vibration. This impacts fatigue life, and has serious implications for fleet management and Stru ... Full text Cite

A Data-Driven Signal Processing Framework for Enhanced Freeplay Diagnostics in NextGen Structural Health Monitoring Systems

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2022 · January 1, 2022 In this paper, a practical signal processing framework is presented, based upon established nonlinear system identification methods, to rapidly diagnose structural freeplay anomalies in aircraft systems. The framework exploits rich bilinear signatures enco ... Full text Cite

Recent Developments in the Implementation of a Bidirectional LSTM Deep Neural Network for Aircraft Operational Loads Monitoring

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2022 · January 1, 2022 The NextGen SHM system, known commonly as Prognostics and Health Management (PHM), focuses on pro-active condition-based maintenance. Therefore, the need to develop and integrate operational airframe loads monitoring capabilities predictive of fatigue is p ... Full text Cite

Data-Driven Flight Load Prediction using Modal Decomposition Techniques

Conference AIAA Science and Technology Forum and Exposition AIAA Scitech Forum 2022 · January 1, 2022 This paper proposes a novel application of modal decomposition techniques for the prediction of flight section loads from strain gauge measurements. The number of used strain sensors is relatively small and simulates a typical Structure Health Monitoring ( ... Full text Cite

Automatic Operational Modal Analysis of Flight Test Data Using a Modal Decomposition

Journal Article AIAA Journal · October 1, 2021 This paper proposes a novel method for an automatic operational modal analysis. An available finite element structural model is used together with sensor data to derive a linear representation of the system, characterized by a set of mode shapes. The corre ... Full text Cite

Influence of turbulence modeling on combustor flowfield in scramjet mode of rbcc engine

Conference 23rd AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2020 · January 1, 2020 Rocket-based Combined-Cycle (RBCC) engines offer promise for efficient and flexible propulsion for space transportation over a wide Mach number range by combining rocket and airbreathing propulsion technologies. To achieve this an RBCC engine uses four dif ... Cite

On the application of a long-short-term memory deep learning architecture for aircraft dynamic loads monitoring

Conference AIAA Scitech 2020 Forum · January 1, 2020 For aircraft, the contemporary approach to Structural Health Monitoring (SHM), known as Prognostics and Health Management (PHM), is driven by condition-based maintenance and structural health prognosis, where pre-emptive planning of maintenance and procure ... Full text Cite

An innovative high-fidelity approach to individual aircraft tracking

Conference AIAA Scitech 2020 Forum · January 1, 2020 For military aircraft, the actual operational usage spectra can be quite different from the original design spectra and thus, so are the service loads affecting the fatigue life of the structure. In the presence of fatigue-critical buffet-induced dynamic l ... Full text Cite

Characterization of a 3DOF aeroelastic system with freeplay and aerodynamic nonlinearities – Part I: Higher-order spectra

Journal Article Mechanical Systems and Signal Processing · March 1, 2019 The identification of nonlinear systems in aeroelasticity poses a significant challenge for practitioners, often hampered by the complex nature of aeroelastic response data which may contain multiple forms of nonlinearity. Characterizing and quantifying no ... Full text Cite

Aircraft transonic buffet load prediction using artificial neural networks

Conference AIAA Scitech 2019 Forum · January 1, 2019 This paper presents the results of a large-scale parametric investigation of deterministic and non-deterministic “black–box” modeling methods for the prediction of dynamic loading spectra, induced by transonic buffet, on the main wing of a fighter aircraft ... Full text Cite

Characterization of a 3DOF aeroelastic system with freeplay and aerodynamic nonlinearities – Part II: Hilbert–Huang transform

Journal Article Mechanical Systems and Signal Processing · January 1, 2019 The Hilbert–Huang Transform is used to analyze the nonlinear aeroelastic response of a 2D 3DOF aeroelastic airfoil system with control surface freeplay under transonic flow conditions. Both static and dynamic aerodynamic conditions, i.e., for accelerating ... Full text Cite

High resolution operational modal analysis and virtual sensor expansion

Conference AIAA Scitech 2019 Forum · January 1, 2019 This paper proposes a novel method to extract high resolution modes using output-only measurements from accelerometers or strain-gauges. A known GVT-calibrated finite element model is used together with sensor data to determine a dynamic model calibration ... Full text Cite

Numerical analysis and design optimization of supersonic after-burning with strut fuel injectors for scramjet engines

Journal Article Acta Astronautica · June 1, 2018 Scramjets are a class of hypersonic airbreathing engine that offer promise for economical, reliable and high-speed access-to-space and atmospheric transport. The expanding flow in the scramjet nozzle comprises of unburned hydrogen. An after-burning scheme ... Full text Cite

Numerical investigation of an RBCC combustor during ramjet/scramjet mode transition

Conference AIAA Aerospace Sciences Meeting 2018 · January 1, 2018 Rocket-based Combined-Cycle (RBCC) engines offer a promise for efficient and flexible propulsion over a large Mach number range by combining rocket and ramjet/scramjet technology. To achieve this, an RBCC engine uses four different modes of operation: rock ... Full text Cite

Characterization of control surface freeplay with nonstationary aerodynamic loading via the hilbert-huang transform

Conference AIAA ASCE AHS ASC Structures Structural Dynamics and Materials Conference 2018 · January 1, 2018 The Hilbert-Huang Transform is used to analyze the nonlinear aeroelastic response of a 2D 3DOF aeroelastic airfoil system with control surface freeplay under transonic flow conditions. Both static aerodynamic condition and dynamic aerodynamic condition, th ... Full text Cite

Identification of freeplay and aerodynamic nonlinearities in a 2D aerofoil system with via higher-order spectra

Journal Article Aeronautical Journal · October 1, 2017 Higher-Order Spectra (HOS) are used to characterise the nonlinear aeroelastic behaviour of a plunging and pitching 2-degree-of-freedom aerofoil system by diagnosing structural and/or aerodynamic nonlinearities via the nonlinear spectral content of the comp ... Full text Cite

Evolutionary optimization of transonic airfoils for static and dynamic trim performance

Journal Article Journal of Intelligent Material Systems and Structures · May 1, 2017 The development and accelerated use of optimization frameworks in aircraft design is a testament to their ability to identify optimal and often non-intuitive shapes as a result of multi-disciplinary design objectives. Airfoil design is a continuously revis ... Full text Cite

Fighter aircraft buffet load prediction using nonlinear system idenitication algorithm

Conference 58th AIAA ASCE AHS ASC Structures Structural Dynamics and Materials Conference 2017 · January 1, 2017 Cite

Identification and characterization of a nonlinear aeroelastic system with freeplay and aerodynamic nonlinearities via higher–order spectra

Conference 58th AIAA ASCE AHS ASC Structures Structural Dynamics and Materials Conference 2017 · January 1, 2017 The identification of nonlinear systems in aeroelasticity poses a significant challenge for practitioners, often hampered by the complex nature of aeroelastic response data which may contain multiple forms of nonlinearity. Characterizing and quantifying no ... Cite

Identification of nonlinear aeroelastic behavior of a wing with pitching and plunging freeplay via higher-order spectra analysis

Conference 57th AIAA ASCE AHS ASC Structures Structural Dynamics and Materials Conference · January 1, 2016 Higher-order spectra (HOS) analysis is utilized to analyze the nonlinear utter aspects of the AGARD 445.6 wing with pitching and plunging freeplay nonlinearities installed at the root. High-fidelity fluid-structure interaction simulations are conducted and ... Full text Cite

Characterization of the nonlinear aeroelastic behavior of an airfoil with freeplay and aerodynamic nonlinearity

Conference 30th Congress of the International Council of the Aeronautical Sciences Icas 2016 · January 1, 2016 Higher-order spectra (HOS) are utilized to investigate the nonlinear flutter behavior of a two-dimensional pitch/plunge airfoil system in transonic flow with freeplay and aerodynamic nonlinearity. It is shown that on the route to diverging flutter the syst ... Cite

Thrust augmentation optimization through supersonic after-burning in scramjet engine nozzles via surrogate-assisted evolutionary algorithms

Journal Article Acta Astronautica · July 27, 2015 Scramjets are a class of hypersonic airbreathing engine that are associated with realizing the technology required for economical, reliable and high-speed access-to-space and atmospheric transport. The expanding flow in the scramjet nozzle comprises of unb ... Full text Cite

Thrust augmentation through after-burning in scramjet nozzles

Journal Article Advances in Aircraft and Spacecraft Science · April 1, 2015 Scramjets are a class of hypersonic airbreathing engine that are associated with realizing the technology required for economical, reliable access-to-space and high-speed atmospheric transport. Afterburning augments the thrust produced by the scramjet nozz ... Full text Cite

Thrust augmentation optimization through supersonic after-burning in scramjet engine nozzles via surrogate-assisted evolutionary algorithms

Conference 53rd AIAA Aerospace Sciences Meeting · January 1, 2015 Scramjets are a class of hypersonic airbreathing engine that are associated with realizing the technology required for economical, reliable and high-speed access-to-space and atmospheric transport. The expanding flow in the scramjet nozzle comprises of unb ... Full text Cite

Evolutionary shape optimization of transonic airfoils for aerodynamic and aeroelastic performance

Conference 26th International Conference on Adaptive Structures and Technologies Icast 2015 · January 1, 2015 The ongoing use and development of optimization frameworks for aircraft design is due to their ability to identify optimal and often non-intuitive shapes pertaining to the multi-disciplinary design criteria. Airfoil design is a continuously revised multi-d ... Cite

An investigation into the effect of freeplay on the nonlinear aeroelastic behavior of a wing via higher-order spectra

Conference 26th International Conference on Adaptive Structures and Technologies Icast 2015 · January 1, 2015 Higher-order spectra analysis is used to analyze the nonlinear flutter characteristics of the AGARD 445.6 wing benchmark model, modified to include freeplay structural nonlinearities in pitch and plunge at the wing root. High-fidelity coupled CFD-CSD fluid ... Cite

Thrust augmentation by after-burning in a scramjet nozzle

Conference Proceedings of the 19th Australasian Fluid Mechanics Conference Afmc 2014 · January 1, 2014 A numerical study of scramjet after-burning through the injection of liquid oxygen into the nozzle is conducted. A maximum thrust augmentation of 300% is found. An understanding of the thrust augmentation phenomenon is provided in the form of a force contr ... Cite