Study of adaptive linear-quadratic-gaussian time-delay compensation method for real-time hybrid simulation

被引：0
|
作者：
Zhang B. [1 ]
Zhou H.-M. [2 ]
Tian Y.-P. [1 ]
Guo W. [3 ]
Gu Q. [4 ]
Wang T. [1 ]
Teng R. [1 ]
机构：
[1] Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, CEA, Harbin
[2] Engineering Seismic Research Center, Guangzhou University, Guangzhou
[3] School of Civil Engineering, Central South University, Changsha
[4] School of Architecture and Civil Engineering, Xiamen University, Xiamen
来源：
Gongcheng Lixue/Engineering Mechanics | 2022年 / 39卷 / 03期
关键词：
Adaptive linear quadratic Gaussian control; High frequency signal; Real-time hybrid test; Time delay; Train-bridge coupling system;
D O I：
10.6052/j.issn.1000-4750.2021.01.0023
中图分类号：
学科分类号：
摘要：
The time delay compensation is very critical to successful implementation of real-time hybrid simulation (RTHS). The traditional time delay compensation is mainly designed for RTHS of building structures, which focuses on relative low frequency signal compensation capacity. However, the structural frequency in aerospace, transportation and other fields may exceed 10 Hz, and the influence of high-frequency signals on structural response cannot be ignored. And higher natural frequency requires smaller time delay to guarantee the stability. It needs to compensate the time delay in a wider frequency range for RTHS test. It proposes an adaptive linear quadratic Gaussian (ALQG) algorithm to expand the frequency range of time delay compensation, especially to improve the compensation capacity for high-frequency signals. The bridge with different stiffness due to different track beam sections were chosen as numerical substructures to conduct RTHS, and to verify the effectiveness and stability of the ALQG algorithm in high-speed bridge track and train body coupling system (train-bridge coupling system) RTHS. The results of RTHS tests for train-bridge coupling system were compared with those of adaptive time series algorithm (ATS). From the test results, it can be seen that the ALQG algorithm can compensate for the high frequency signals in the RTHS, and has the better compensation performance than ATS algorithm. Copyright ©2022 Engineering Mechanics. All rights reserved.
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页码：75 / 83
页数：8
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