Control of a two-axis redundantly actuated electro-hydraulic angle shaking table

被引：0
|
作者：
Guan G. [1 ]
Xiong W. [1 ]
Wang H. [1 ]
机构：
[1] Department of Mechanical Engineering, Dalian Maritime University, Dalian
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2018年 / 37卷 / 06期
关键词：
Acceleration control; Inner force control; Kinematics analysis; Multi-axis electro-hydraulic shaking table; Redundant drive;
D O I：
10.13465/j.cnki.jvs.2018.06.007
中图分类号：
学科分类号：
摘要：
The redundant actuation is favorable to spread the load of electro-hydraulic shaking tables and improve the performance indices of evenness and transverse component of acceleration signals. The redundantly actuated electro-hydraulic shaking table is a new prospect for vibration test systems and the corresponding control system is the key technology of multi-axis electro-hydraulic shaking tables. A kinematics analysis was presented to transform signals between the joint space and work space, and an acceleration control loop was developed based on the kinematics analysis and the control precision was improved when actuator strokes are relatively large. An inner force control loop was designed based on the dynamic analysis of the shaking table to reduce the cross coupling among the actuators. The constant attitude test, step response and acceleration amplitude frequency response characteristics analysis and sine vibration test were used to verify the effectiveness of the proposed control method. © 2018, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：42 / 46
页数：4
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