摘要
利用多个振动台组成台阵振动模拟系统,进行大跨度结构甚至足尺模型的实验,是振动环境模拟的新发展方向。控制系统是台阵模拟系统的关键技术,其性能优劣直接关系到对试件可靠性的定量评估。以冗余驱动电液振动台及电动振动台组成的双台阵系统为研究对象,分别对电液振动台加速度控制策略、冗余力控制策略及电动振动台位姿控制策略进行详细分析,并基于分布式控制结构设计双台阵振动模拟控制系统。最后通过实验验证台阵系统控制器的有效性。
A multiple shaking tables test system is a new prospect in long span or full-scale structures vibration simulations. The vibration control is a key technology for multiple shaking tables simulations. The control performance has a great influence on the assessment of the reliability of structures. The dual shaking tables test system consists of a redundantly driven two-axis electro-hydraulic shaking table and a two-axis electo-dyanmic shaking table. The attitude control of the electro-dynamic shaking table, the acceleration control loop and redundant force control loop of the electro-hydraulic shaking table were presented to control the two shaking tables separately. The shaking tables control system was developed based on a distributed control structure. The sine and random vibration tests show the effectiveness of the proposed controller.
出处
《振动与冲击》
EI
CSCD
北大核心
2017年第6期207-211,217,共6页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(51675073)
中央高校基本科研业务费专项资金资助(3132016070
3132016353)
大连市高层次人才创新创业项目(2015R064)
关键词
台阵模拟
冗余驱动
电液振动台
电动振动台
multiple shaking tables vibration simulation
redundantly drive
electro-hydraulic shaking table
electro-dynamic shaking table
