地震模拟振动台三参量控制技术研究

PDF(2441 KB)

振动与冲击 ›› 2014, Vol. 33 ›› Issue (8) : 54-60.

论文

地震模拟振动台三参量控制技术研究

栾强利1，陈章位1，徐进荣1,贺惠农2

作者信息 +

Three-variable control technology research of seismic simulating shaking table

LUAN Qiang-li 1,CHEN Zhang-wei1, XU Jin-rong1，HE Hui-nong2

Author information +

文章历史 +

摘要

对地震模拟振动台三参量控制算法进行了深入的研究，详细研究了三参量反馈及前馈环节对振动台系统特性的校正作用，并通过仿真和试验的方法进一步验证三参量控制算法对地震模拟振动台系统频响特性的改善效果：通过引入三参量速度反馈可以有效扩展系统的频宽，引入三参量加速度反馈可以有效提高系统的阻尼，三参量前馈控制能够对消系统闭环传递函数中距离虚轴较近的极点，实现系统频宽的进一步扩展。最后，通过对三参量伺服控制的地震模拟振动台进行地震波形再现试验，证明三参量控制算法能够实现较高精度的地震波形再现试验。

Abstract

Deeply research the Three-Variable Control (TVC) algorithm of seismic simulating shaking table, and study the correction action on the system characteristics of shaking table played by the three-variable feedback and three-variable feedforward step in detail. Through simulation and field test methods verify the improvement effect for system frequency response characteristics of seismic simulating shaking table taken by the TVC algorithm: expand the system bandwidth by introducing the velocity feedback of TVC; effectively increase the system damp by introducing the acceleration feedback of TVC; eliminate the system pole near to the imaginary axis of system closed-loop transfer function and further extend the system bandwidth by introducing the three-variable feedforward control. Finally, by conducting the seismic wave reproduction test on the three-variable controlled shaking table prove the TVC algorithm could achieve high-precision seismic wave reproduction test.

导出引用

栾强利;陈章位;徐进荣;贺惠农. 地震模拟振动台三参量控制技术研究[J]. 振动与冲击, 2014, 33(8): 54-60

LUAN Qiang-li;CHEN Zhang-wei;XU Jin-rong;HE Hui-nong. Three-variable control technology research of seismic simulating shaking table[J]. Journal of Vibration and Shock, 2014, 33(8): 54-60