6自由度电液振动台控制策略研究

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振动与冲击 ›› 2010, Vol. 29 ›› Issue (4) : 200-203.

论文

6自由度电液振动台控制策略研究

关广丰1; 熊伟1 ;王海涛1 ;韩俊伟2

作者信息 +

Control Strategy of 6 DOF Hydraulic Shaker

GUAN Guang&;feng1; XIONG Wei1; WANG Haitao1; HAN Junwei2

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文章历史 +

摘要

为提高6自由度电液振动台的控制精度，在传统6自由度控制回路中增加两路扭曲控制回路，采用扭曲控制策略控制平台振动。基于扭曲控制策略，对传统压力镇定控制器进行改进，将相互关联的8个参数缩减为2个相互独立的参数。正弦振动试验结果表明，采用扭曲控制策略能够明显改善振动台系统低频段的加速度均匀度和横向分量指标，改进后的压力镇定控制器能够有效削弱系统中各液压缸之间的内力。

Abstract

Torsion control strategy of 6 DOF (degree-of-freedom) hydraulic shaker is presented to improve the control precision of the system. Two torsion control loops are added to the original 6 DOF control loops. The force balance controller is improved based on the torsion control strategy. The number of controller parameters is reduced from eight to two, and the two parameters are independent and can be adjusted individually. Sine vibration tests are run in one 6 DOF hydraulic shaker with the new algorithm. Test results show that the torsion control strategy is favorable to improve the performance indices of acceleration evenness degree and transverse components in the low-frequency band of the system. The improved force balance controller can reduce the inner force among the eight cylinders effectively.

导出引用

关广丰;熊伟;王海涛;韩俊伟. 6自由度电液振动台控制策略研究[J]. 振动与冲击, 2010, 29(4): 200-203

GUAN Guang&;feng;XIONG Wei;WANG Haitao;HAN Junwei. Control Strategy of 6 DOF Hydraulic Shaker[J]. Journal of Vibration and Shock, 2010, 29(4): 200-203