三级阀控液压振动台控制策略研究

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (24) : 138-143.

论文

三级阀控液压振动台控制策略研究

栾强利1，陈章位1，贺惠农2

作者信息 +

Control strategy research of the 3-stage electro-hydraulic servo valve controlled hydraulic shaker

LUAN Qiang-li1 CHEN Zhang-wei1 HE Hui-nong2

Author information +

文章历史 +

摘要

对三级阀控液压振动台的控制策略进行了系统的研究，设计了应用于大流量液压振动台的一体式控制器。一体式控制器同时实现液压振动台伺服控制及振动控制功能，伺服控制中，针对三级电液伺服阀和伺服油缸提出了一种双PID伺服控制策略，振动控制中，针对液压振动台良好的低频特性设计了基于闭环迭代控制的波形再现控制方法。通过一体式控制器对三级阀控液压振动台进行不同时程、不同频宽的波形再现试验，表明控制器对液压振动台具有很好的波形控制能力，实现液压振动台高精度波形再现。

Abstract

Systematically researched the control strategy of the 3-stage electro-hydraulic servo valve controlled hydraulic shaker, and designed an integrated controller used for the large-flow hydraulic shaker. The controller could simultaneously achieve the servo control and vibration control functions of the hydraulic shaker. In the process of servo control, a dual-PID servo-control strategy was presented for the 3-stage electro-hydraulic servo valve and the servo cylinder. In the process of vibration control, aiming at the good low-frequency characteristics of the hydraulic shaker, a waveform replication method based on the closed-loop iterative control was designed. Through the waveform replication tests with different time histories and different bandwidths on the hydraulic shaker controlled by the integrated controller, it indicates that the controller has a strong waveform control ability to achieve high-precision waveform replication on the hydraulic shaker.
Key words: the hydraulic shaker; the 3-stage electro-hydraulic servo valve; seismic waveform replication; road spectrum simulation

导出引用

栾强利;陈章位;贺惠农. 三级阀控液压振动台控制策略研究[J]. 振动与冲击, 2014, 33(24): 138-143

LUAN Qiang-li CHEN Zhang-wei HE Hui-nong. Control strategy research of the 3-stage electro-hydraulic servo valve controlled hydraulic shaker[J]. Journal of Vibration and Shock, 2014, 33(24): 138-143