首页|Stability and accuracy of central difference method for real-time dynamic substructure testing considering mass participation coefficient

Stability and accuracy of central difference method for real-time dynamic substructure testing considering mass participation coefficient

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For real-time dynamic substructure testing(RTDST),the influence of the inertia force of fluid specimens on the stability and accuracy of the integration algorithms has never been investigated.Therefore,this study proposes to investigate the stability and accuracy of the central difference method(CDM)for RTDST considering the specimen mass participation coefficient.First,the theory of the CDM for RTDST is presented.Next,the stability and accuracy of the CDM for RTDST considering the specimen mass participation coefficient are investigated.Finally,numerical simulations and experimental tests are conducted for verifying the effectiveness of the method.The study indicates that the stability of the algorithm is affected by the mass participation coefficient of the specimen,and the stability limit first increases and then decreases as the mass participation coefficient increases.In most cases,the mass participation coefficient will increase the stability limit of the algorithm,but in specific circumstances,the algorithm may lose its stability.The stability and accuracy of the CDM considering the mass participation coefficient are verified by numerical simulations and experimental tests on a three-story frame structure with a tuned liquid damper.

real-time dynamic substructure testingcentral difference methodstabilitymass participation coefficienttuned liquid damper

Zheng Lichang、Xu Guoshan、Yang Ge、Wang Zhen、Yang Kaibo、Zheng Zhenyun

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School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China

Key Lab of Structures Dynamic Behavior and Control,Ministry of Education,Harbin Institute of Technology,Harbin 150090,China

Key Lab of Intelligent Disaster Mitigation,Ministry of Industry and Information Technology,Harbin 150090,China

School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaNational Key Research and Development Program of China

51978213517781902017YFC07036052016YFC0701106

2024

10.1007/s11803-024-2261-9

地震工程与工程振动(英文版)
中国地震局工程力学研究所

地震工程与工程振动(英文版)

EI
影响因子：0.476
ISSN：1671-3664
年,卷(期)：2024.23(3)
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