结构主动控制中振动台液压动力机构的建模与分析  

Modeling and Analyzing of Hydraulic Power Element in Active Structural Control

作　　者：徐洋[1] 华宏星[1] 韩俊伟[2] 

机构地区：[1]上海交通大学机械系统与振动国家重点实验室,上海200240 [2]哈尔滨工业大学机械电子工程系,哈尔滨150001

出　　处：《上海交通大学学报》2008年第3期484-488,共5页Journal of Shanghai Jiaotong University

摘　　要：结构主动控制实验系统中振动台空载和满载时的液压动力机构具有不同的特性.为了能有效设计空载和满载振动台的控制器,准确复现振动台的输入波形,基于主动质量阻尼主动控制系统,研究了空载和满载振动台的激振系统建模,采用有限元方法验证了分析结果.结果表明,系统建模是正确的,为下一步振动台控制器的设计提供了设计依据.For the hydraulic power element of a shaking table actuation system in the active control experimental system, the unloaded system has different characters compared with the loaded one. In order to design an effective controller and accurately make the input wave, the dynamic model of unloaded system and loaded one was constructed based on the active mass damper control experimental system. This dynamic model was validated by finite element method. The results indicate that the constructed model is correct and can be provided as a basis for the shaking table controller design in next step.

关 键 词：主动控制 振动台 液压动力机构 空载建模 满载建模 

分 类 号：TP271.31[自动化与计算机技术—检测技术与自动化装置] TU311.3[自动化与计算机技术—控制科学与工程]