Reduced Order Modeling Research Challenge 2023: Nonlinear Dynamic Response Predictions for an Exhaust Cover Plate

Kyusic Park*, Matthew S. Allen, Max de Bono, Alessio Colombo, Attilio Frangi, Giorgio Gobat, George Haller, Tom Hill, Shobhit Jain, Boris Kramer, Mingwu Li, Loic Salles, David A. Najera-Flores, Simon Neild, Ludovic Renson, Alexander Saccani, Harsh Sharma, Yichang Shen, Paolo Tiso, Michael D. ToddCyril Touzé, Christopher Van Damme, Alessandra Vizzaccaro, Zhenwei Xu, Ryan Elliot, Ellad Tadmor

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

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Abstract

A variety of reduced order modeling (ROM) methods for geometrically nonlinear structures have been developed over recent decades, each of which takes a distinct approach, and may have different advantages and disadvantages for a given application. This research challenge is motivated by the need for a consistent, reliable, and ongoing process for ROM comparison. In this chapter, seven state-of-the-art ROM methods are evaluated and compared in terms of accuracy and efficiency in capturing the nonlinear characteristics of a benchmark structure: a curved, perforated plate that is part of the exhaust system of a large diesel engine. Preliminary results comparing the full-order and ROM simulations are discussed. The predictions obtained by the various methods are compared to provide an understanding of the performance differences between the ROM methods participating in the challenge. Where possible, comments are provided on insight gained into how geometric nonlinearity contributes to the nonlinear behavior of the benchmark system.
Original languageEnglish
Title of host publicationNonlinear Structures and Systems
Subtitle of host publicationProceedings of the 42nd IMAC, A Conference and Exposition on Structural Dynamics 2024
EditorsMatthew R. W. Brake, Ludovic Renson, Robert J. Kuether, Paolo Tiso
PublisherSpringer, Cham
Pages51-56
Number of pages6
Volume1
ISBN (Electronic)9783031694097
ISBN (Print)9783031694080, 9783031694110
DOIs
Publication statusPublished - 8 Aug 2024

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Bibliographical note

Publisher Copyright:
© The Society for Experimental Mechanics, Inc. 2024.

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