02/13/2024
By Danielle Fretwell

The Francis College of Engineering, Department of Mechanical Engineering, invites you to attend a Doctoral Dissertation defense by John Seymour on "Applications and Methodologies for an Impedance to Modal Dynamic Substructuring Technique."

Candidate Name: John Seymour
Degree: Doctoral
Defense Date: Monday, Feb. 26, 2024
Time: 9 to 10 a.m.
Location: Perry 315

Committee:

  • Advisor Peter Avitabile, D.Eng., Professor Emeritus, Mechanical Engineering, UML
  • Co-Advisor Alessandro Sabato, Ph.D., Assistant Professor, Mechanical Engineering, UML
  • Jesus Reyes Blanco, Ph.D., Assistant Teaching Professor, Mechanical Engineering, UML
  • Christopher Niezrecki, Ph.D., Distinguished University Professor, Mechanical Engineering, UML
  • Javad Baqersad, Ph.D., Assistant Professor, Mechanical Engineering, Kettering University

Brief Abstract:

Substructuring is a term used to describe the estimation of the dynamics of a coupled system assembly when only the dynamics of the uncoupled components are available. Existing approaches allow for the coupling of physical-to-physical models, physical-to-modal models, modal-to-modal models referred to as Component Mode Synthesis, and impedance-to-impedance models referred to as Frequency Based Substructuring. The component information may often not be just modal data for both components or just Frequency Response Function (FRF) data for both components so that modal substructuring or FRF substructuring can be performed. In these cases, the component data needs to be converted from either modal data or FRF data to match the data of the other component. A method for directly coupling impedance and modal-based components is introduced in this work.