实时混合试验的自适应时滞补偿方法

王贞; 李强; 吴斌

doi:10.6052/j.issn.1000-4750.2017.05.0384

实时混合试验的自适应时滞补偿方法

doi: 10.6052/j.issn.1000-4750.2017.05.0384

王贞^1,2,3,,
李强^1,2,3,
吴斌^1,2,3

1.
哈尔滨工业大学结构工程灾变与控制教育部重点实验室, 哈尔滨 150090;
2.
哈尔滨工业大学土木工程智能防灾减灾工业和信息化部重点实验室, 哈尔滨 150090;
3.
哈尔滨工业大学土木工程学院, 哈尔滨 150090

基金项目: 国家重点研发计划项目（2016YFC0701106）；青年科学基金项目（51408157，51408080）；黑龙江省自然科学基金项目（LC201423）；高等学校博士学科点专项基金项目（20132302110065）；河北省交通运输厅科学技术项目计划项目（KT2）

详细信息

作者简介:
李强(1994-),男,黑龙江人,硕士,主要从事实时混合试验方法研究(E-mail:923918245@qq.com);吴斌(1970-),男,湖北人,教授,博士,博导,主要从事结构振动控制和结构抗震试验方法研究(E-mail:bin.wu@hit.edu.cn).

通讯作者:
王贞(1983-),男,安徽人,讲师,博士,主要从事结构抗震试验方法研究(E-mail:zhenwang@hit.edu.cn).

中图分类号: TU317+.9
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- 文章访问数: 438
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- 被引次数: 0
出版历程
- 收稿日期: 2017-05-19
- 修回日期: 2018-01-18
- 刊出日期: 2018-09-29

ADAPTIVE DELAY COMPENSATION METHOD FOR REAL-TIME HYBRID TESTING

WANG Zhen^{1,2,3
,},
LI Qiang^1,2,3,
WU Bin^1,2,3

1.
Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, China;
2.
Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, China;
3.
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China

摘要

摘要: 实时混合试验是由拟动力试验发展而来，时滞问题是实时混合试验的核心问题。传统时滞补偿方法往往假定试验中时滞不变，然而加载系统的非线性以及试件性能的变化可能导致系统时滞变化，使得此类方法性能不够理想。该文针对变时滞实时混合试验提出了基于模型参数识别的自适应时滞补偿方法。该方法将伺服系统简化为离散模型，通过在线参数估计确定系统状态，从而对伺服系统进行在线时滞补偿。该文首先阐述了该方法的原理，再通过数值模拟验证了方法的可行性与精度，并分析了不同模型对补偿的影响。
- 实时混合试验 /
- 时滞补偿 /
- 自适应 /
- 离散模型 /
- 精度
Abstract: Delay and its compensation are key problems for Real-time Hybrid Testing (RHT), which was developed from the pseudo-dynamic testing method. Conventional compensation methods are mostly based on constant delay assumption. However, system delay changes during tests due to system nonlinearity and performance change of the specimen, which results in undesirable test results. This paper proposes an adaptive delay compensation method based on online model parameter identification for RHT. The proposed method uses discrete models to simulate the servo loading system, online parameter identification to attain the loading system state; then the system delay is compensated based on this model. This paper firstly describes the method, and then numerically validates the feasibility and the effectiveness. The effect of different models is demonstrated as well.
- real-time hybrid testing /
- delay compensation /
- adaptive /
- discrete model /
- accuracy

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参考文献(14)

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