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 language | English |
---|---|
Title of host publication | Nonlinear Structures and Systems |
Subtitle of host publication | Proceedings of the 42nd IMAC, A Conference and Exposition on Structural Dynamics 2024 |
Editors | Matthew R. W. Brake, Ludovic Renson, Robert J. Kuether, Paolo Tiso |
Publisher | Springer, Cham |
Pages | 51-56 |
Number of pages | 6 |
Volume | 1 |
ISBN (Electronic) | 9783031694097 |
ISBN (Print) | 9783031694080, 9783031694110 |
DOIs | |
Publication status | Published - 8 Aug 2024 |
Publication series
Name | Conference 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.