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Linda Franzoni

Professor of the Practice in the Thomas Lord Department of Mechanical Engineering and Materials Science
Thomas Lord Department of Mechanical Engineering and Materials Science
305 Teer Building, Box 90271, Durham, NC 27708-0271
305 Teer, Box 90271, Durham, NC 27708

Overview


Professor Franzoni's research areas include: acoustics, and structural dynamics and vibration. Practical applications of this work include: acoustics of enclosures (rooms or vehicle interiors) and underwater acoustics (acoustic radiation and scattering from submarines).

Professor Franzoni's interior noise research has focused on developing improved methods for predicting sound pressure levels in acoustic spaces which contain high-frequency sound waves with moderate damping. For these types of sound fields, accurate prediction methods currently require extensive computational effort. Professor Franzoni's research goal is to develop computationally efficient methods that provide the acoustician with a fairly detailed description of the sound field.

Professor Franzoni's work in underwater acoustics has focused on applying Bliss' method of Analytical/Numerical Matching (ANM) to the prediction of acoustic radiation and scattering from flexible elastic submerged structures with discontinuities. Work is underway to implement this method in existing Navy computer codes. A recent extension of this work is a novel method for the homogenization of structures using a local/global decomposition method. The result is a reduction in computational effort for certain types of problems.

Current Appointments & Affiliations


Professor of the Practice in the Thomas Lord Department of Mechanical Engineering and Materials Science · 2006 - Present Thomas Lord Department of Mechanical Engineering and Materials Science, Pratt School of Engineering
Associate Dean of Undergraduate Education · 2014 - Present Pratt School of Engineering

In the News


Published May 12, 2021
Fundamental Concepts: What is Engineering?

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Recent Publications


Work in Progress: Evaluation of 360 Coaching to Support Whole-Student Advising in the First-Year

Conference ASEE Annual Conference and Exposition, Conference Proceedings · June 25, 2023 Cite

Benchmark analytical solutions for steady state high frequency broadband sound fields in three rectangular enclosures.

Journal Article The Journal of the Acoustical Society of America · April 2019 Analytical solutions are presented for broadband sound fields in three rectangular enclosures with absorption applied on the floor and ceiling, rigid sidewalls, and a vertically oriented dipole source. The solutions are intended to serve as benchmarks that ... Full text Cite

Sound attenuation and prediction of porous media properties in hybrid ducts utilizing spatially periodic area changes

Journal Article 2008 Proceedings of the NoiseCon/ASME NCAD, NCAD 2008 · October 16, 2009 A theory based on cross-sectional averaging is developed to analyze quasi-one-dimensional acoustic propagation in hybrid ducts with two propagation media in the cross-section. Specifically, ducts lined with a thick layer of porous material are considered. ... Cite
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Recent Grants


Summer Undergraduate Research Fellowship (SURF) Program

FellowshipPrincipal Investigator · Awarded by National Institute of Standards and Technology · 2016 - 2016

Summer Undergraduate Research Fellowship (SURF) Program

FellowshipPrincipal Investigator · Awarded by National Institute of Standards and Technology · 2015 - 2015

Energy-Based Boundary Elements for Structural Acoustics

ResearchPrincipal Investigator · Awarded by National Science Foundation · 2006 - 2010

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Education, Training & Certifications


Duke University · 1991 Ph.D.
Duke University · 1988 M.S.
Yale University · 1980 B.S.