结构快速拟动力试验方法研究
摘要
提出一种基于硬件控制的快速拟动力试验方法。这种方法采用试件上外接的位移传感器来代替作动器内部自带的位移传感器,这样可以将试件位移反馈和指令误差补偿过程交由作动器内部的闭环控制来快速完成。对一根悬臂钢柱进行了快速拟动力试验。试验结果表明,该方法对电液伺服加载装置的PID控制参数提出较高的要求,需要合理进行调整来保证作动器的快速响应。这种方法为速度相关型结构或构件提供了一种快速试验技术。
引文
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[2]Nakashima M et al.Development of real-time pseudodynamictesting[J].Earthquake Engineering and Structural Dynamics1992,21(1):79-92.
[3]Mosqueda G,Stojadinovic B,Mahin S.Implementation and accu-racy of continuous hybrid simulation with geographically distributedsubstructures[M].UBC/EERC 2005-02,Earthquake Engi-neering Research Center,University of California,Berkeley.
[4]Nakashima M,Masaoka N.Real-time on-line test for Mdof sys-tems[J].Earthquake Engineering and Structural Dynamics,1999,28:393-420.
[5]Dorka U E,Heiland D.Fast online earthquake simulation using anovel PC supported measurement and control concept[C]//Pro-ceedings of the 4th International Conference on Structural Dynam-ics,Southhampton UK,1991:636-645.
[6]刘季,李暄,张培卿.大刚度结构力控制拟动力实验方法[J].地震工程与工程振动,1996,16(4):55-59.
[7]李暄,刘季,田石柱.结构拟动力试验力控制实现技术[J].地震工程与工程振动,1997,17(1):49-53.
[8]田石柱,赵桐,赵雪峰.位移保护下力控制拟动力试验方法的原理[J].地震工程与工程振动,2002,22(3):37-41.
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