液压振动台负载流量补偿方法的研究  

Study on load-flow compensation of hydraulic vibration table

作　　者：刘博[1] 侯京锋[1] 窦雪川[1] 张静[1] 郝岩研[1] 王家乐[1] 王有杰[1] 

机构地区：[1]北京强度环境研究所,北京100076

出　　处：《强度与环境》2014年第1期17-22,共6页Structure & Environment Engineering

摘　　要：通过将负载变化折算为相应控制指令,并与期望指令相叠加后,作为最终的控制指令输出给伺服阀,构造负载流量与期望控制指令之间的比例关系,实现了液压振动台抑制负载干扰对流量波动的影响,提高了液压振动台运动控制精度。经过流量补偿后的液压振动台在负载变化时可以实现对输入指令较好的跟踪,可对机械振动或冲击环境进行更好的模拟。By superposing the control command converted from the varying load and the expected control command as the last control command, the linear dependency between the load-flow and the expected control command is constructed. The method could achieve the suppression of load-flow fluctuation influenced by load variation, and improve the control precision of the table. The hydraulic vibration table could track the expected command with load varying well by the load-flow compensation method, and simulate the vibration environment and the shock environment better.

关 键 词：液压振动台 负载流量 流量补偿 流量特性 

分 类 号：TH137.7[机械工程—机械制造及自动化]