| 试件特性对地震模拟振动台控制性能影响Ⅰ——对系统稳定性的影响 |
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| 引用本文： | 李振宝,唐贞云,周大兴,纪金豹,马华.试件特性对地震模拟振动台控制性能影响Ⅰ——对系统稳定性的影响[J].北京工业大学学报,2010,36(8). |
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| 作者姓名： | 李振宝 唐贞云 周大兴 纪金豹 马华 |
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| 作者单位： | 北京工业大学,工程抗震与结构诊治北京市重点实验室,北京,100124;北京工业大学,工程抗震与结构诊治北京市重点实验室,北京,100124;北京工业大学,工程抗震与结构诊治北京市重点实验室,北京,100124;北京工业大学,工程抗震与结构诊治北京市重点实验室,北京,100124;北京工业大学,工程抗震与结构诊治北京市重点实验室,北京,100124 |
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| 基金项目： | 国家自然科学基金资助项目，北京工业大学研究生科技基金资助项目 |
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| 摘 要： | 为了解决地震模拟振动台控制系统设计时将试验试件假定为刚性质量造成的控制系统控制频带窄、稳定性差、地震记录再现精度低等问题,通过系统建模分析了单自由度、多自由度柔性负载在刚性负载设计参数、空载设计参数控制下的系统性能.结果表明,柔性负载在空载设计参数下的系统稳定性更优.实例仿真表明,空载设计参数控制下系统稳定性得到大幅度改善.
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| 关 键 词： | 地震模拟振动台 刚性负载 柔性负载 控制参数 |
Effects on the Earthquake Simulation Caused by the Characteristics of the Specimen in the Shaking Table Tests-Part 1:Effects on the Stability of the System |
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| LI Zhen-bao,TANG Zhen-yun,ZHOU Da-xing,JI Jin-bao,MA Hua.Effects on the Earthquake Simulation Caused by the Characteristics of the Specimen in the Shaking Table Tests-Part 1:Effects on the Stability of the System[J].Journal of Beijing Polytechnic University,2010,36(8). |
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| Authors: | LI Zhen-bao TANG Zhen-yun ZHOU Da-xing JI Jin-bao MA Hua |
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| Affiliation: | LI Zhen-bao,TANG Zhen-yun,ZHOU Da-xing,JI Jin-bao,MA Hua(Beijing Key Lab of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | The specimen is assumed to be a rigid mass in the design of the shaking table control system,but in fact,there is a big difference between the specimen and the shaking table system caused by the assumption of the rigid mass of the specimen. This results in the control system operating in a narrow frequency band and poor stability reducing the replaying precision of the recorded seismic waves. In this paper,models are established both for the SDOF and MDOF systems which are designed to be the rigid mass and ... |
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| Keywords: | shaking table rigid payload non-rigid payload control parameter |
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