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作者:

Tang, Zhenyun (Tang, Zhenyun.) | Dietz, Matt (Dietz, Matt.) | Li, Zhenbao (Li, Zhenbao.) (学者:李振宝) | Taylor, Colin (Taylor, Colin.)

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EI Scopus SCIE

摘要:

Real-time dynamic substructuring (RTDS) is a state-of-the-art experimental technique for evaluating the dynamic performance of a structural system subjected to time-varying loads in civil engineering. The accuracy and stability of RTDS is affected by the natural dynamics of the constituent transfer system. Of various control strategies, and due to the merits of simple implementation and low computational cost, delay-compensation methods have become most pervasive. In this paper, the performance of delay compensation based methods for RTDS is assessed in terms of accuracy and stability. Three commonly-used delay compensation schemes are considered, two of which are time variant and one time invariant. Stability is assessed analytically, numerically, and experimentally. Accuracy is assessed numerically and experimentally. To provide a suitable test for the delay compensation control schemes, a shaking table is adopted as the RTDS transfer system. It is demonstrated numerically, analytically, and experimentally that when applied to transfer systems such as these, delay compensation can work to the detriment of test accuracy and test stability. Adequate performance of delay compensated, shaking-table based RTDS is confined to a narrow low frequency bandwidth, which severely restricts the range of potential application.

关键词:

accuracy delay compensation dynamic stability Real-time dynamic substructuring shaking table tests

作者机构:

  • [ 1 ] [Tang, Zhenyun]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing, Peoples R China
  • [ 2 ] [Li, Zhenbao]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing, Peoples R China
  • [ 3 ] [Dietz, Matt]Univ Bristol, Dept Civil Engn, Bristol, Avon, England
  • [ 4 ] [Taylor, Colin]Univ Bristol, Dept Civil Engn, Bristol, Avon, England

通讯作者信息:

  • [Tang, Zhenyun]Beijing Univ Technol, Coll Architecture & Civil Engn, 100 Pingleyuan, Beijing, Peoples R China

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来源 :

JOURNAL OF VIBRATION AND CONTROL

ISSN: 1077-5463

年份: 2018

期: 21

卷: 24

页码: 5019-5029

2 . 8 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:76

JCR分区:1

被引次数:

WoS核心集被引频次: 16

SCOPUS被引频次: 17

ESI高被引论文在榜: 0 展开所有

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