双向混合试验方法及验证

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摘要混合试验是一种重要的结构抗震试验方法。研究表明，地震对结构的作用是多向的，水平双向地震对结构的破坏作用比单向地震大很多。精确地完成双向混合试验对抗震研究具有重要意义。本文主要研究双向混合试验的加载控制方法。阐述了坐标转换方法及试件恢复力的求解方法，提出基于数值迭代算法的外环加载方法以及力控制的冗余作动器加载方法，数值模拟及真实试验表明本文所提出的加载控制策略具有较好的精度。

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	王贞1
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	3
	朱思宇1
	2
	3
	许国山1
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	徐小童1
	2
	3
	吴斌1
	2
	3

关键词 ：混合试验, 双向, 冗余控制, HyTest

Abstract：Hybrid testing is an important structural seismic test method. Research shows that the action of an earthquake onto structures is often bi-directional instead of unidirectional; that bi-directional earthquake results in more damage to structures. Therefore, it makes sense to perform an accurate bi-directional hybrid test. This paper studies the principle of the bi-directional hybrid test, which first explains the method of coordinate transformation and the transformation from actuator force to restoring force. An outer loop control method is presented based on numerical iteration strategy. Meanwhile, force control for the redundant actuators is proposed. The effectiveness of the schemes in terms of accuracy is also validated through numerical simulations and real tests.

Key words： hybrid test bi-direction redundant control HyTest

收稿日期: 2017-10-31 出版日期: 2019-04-28

引用本文:

王贞1,2,3，朱思宇1,2,3，许国山1,2,3，徐小童1,2,3，吴斌1,2,3. 双向混合试验方法及验证[J]. 振动与冲击, 2019, 38(9): 1-8.
WANG Zhen1,2,3,ZHU Siyu1,2,3,XU Guoshan1,2,3,XU Xiaotong1,2,3,WU Bin1,2,3. Bi-directional hybrid test method and its verification. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(9): 1-8.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2019/V38/I9/1

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