Numerical assessment of reduced order modeling techniques for dynamic analysis of jointed structures with contact nonlinearities

Jie Yuan, Fadi El-Haddad, Loic Salles, Chian Wong

Результат исследований: Вклад в журналСтатьярецензирование

16 Цитирования (Scopus)

Аннотация

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.

Язык оригиналаАнглийский
Номер статьи031027
ЖурналJournal of Engineering for Gas Turbines and Power
Том141
Номер выпуска3
DOI
СостояниеОпубликовано - 1 мар. 2019
Опубликовано для внешнего пользованияДа

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