Numerical assessment of reduced order modeling techniques for dynamic analysis of jointed structures with contact nonlinearities
Numerical assessment of reduced order modeling techniques for dynamic analysis of jointed structures with contact nonlinearities
This work presents an assessment of classical and state of the art reduced order modeling (ROM) techniques to enhance the computational efficiency for dynamic analysis of jointed structures with local contact nonlinearities. These ROM methods include classical free interface method (Rubin method, MacNeal method), fixed interface method Craig-Bampton (CB), Dual Craig-Bampton (DCB) method and also recently developed joint interface mode (JIM) and trial vector derivative (TVD) approaches. A finite element (FE) jointed beam model is considered as the test case taking into account two different setups: one with a linearized spring joint and the other with a nonlinear macroslip contact friction joint. Using these ROM techniques, the accuracy of dynamic behaviors and their computational expense are compared separately. We also studied the effect of excitation levels, joint region size, and number of modes on the performance of these ROM methods.
Yuan, Jie
4bcf9ce8-3af4-4009-9cd0-067521894797
El-Haddad, F.
9cc27fd0-eea6-4539-a542-ad9964aae07f
Salles, L.
1b179daa-7bb9-4f34-8b5f-dfc05b496969
Wong, C.
d81bef05-7955-4a7e-a33d-a15eb961d215
Yuan, Jie
4bcf9ce8-3af4-4009-9cd0-067521894797
El-Haddad, F.
9cc27fd0-eea6-4539-a542-ad9964aae07f
Salles, L.
1b179daa-7bb9-4f34-8b5f-dfc05b496969
Wong, C.
d81bef05-7955-4a7e-a33d-a15eb961d215
Yuan, Jie, El-Haddad, F., Salles, L. and Wong, C.
(2018)
Numerical assessment of reduced order modeling techniques for dynamic analysis of jointed structures with contact nonlinearities.
Journal of Engineering for Gas Turbines and Power, 141 (3), [031027].
(doi:10.1115/1.4041147).
Abstract
This work presents an assessment of classical and state of the art reduced order modeling (ROM) techniques to enhance the computational efficiency for dynamic analysis of jointed structures with local contact nonlinearities. These ROM methods include classical free interface method (Rubin method, MacNeal method), fixed interface method Craig-Bampton (CB), Dual Craig-Bampton (DCB) method and also recently developed joint interface mode (JIM) and trial vector derivative (TVD) approaches. A finite element (FE) jointed beam model is considered as the test case taking into account two different setups: one with a linearized spring joint and the other with a nonlinear macroslip contact friction joint. Using these ROM techniques, the accuracy of dynamic behaviors and their computational expense are compared separately. We also studied the effect of excitation levels, joint region size, and number of modes on the performance of these ROM methods.
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e-pub ahead of print date: 1 November 2018
Identifiers
Local EPrints ID: 478920
URI: http://eprints.soton.ac.uk/id/eprint/478920
ISSN: 0742-4795
PURE UUID: 8d16c1fa-aacc-4285-9a4e-313ffecf6b39
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Date deposited: 13 Jul 2023 16:51
Last modified: 17 Mar 2024 04:20
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Contributors
Author:
Jie Yuan
Author:
F. El-Haddad
Author:
L. Salles
Author:
C. Wong
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