摘要
建立主动质量阻尼(Active mass damper,AMD)控制结构试验系统;完成具有多自由度共振性负载的液压动力机构的建模和分析;针对振动台液压系统的频宽满足不了试验需要的问题,采用三状态反馈和三状态顺馈的方法设计振动台控制器的,实现振动台加速度响应频宽的扩展和系统稳定性的提高;通过试验进行验证,得出系统能达到期望的响应频宽和稳定裕量的结论。
The experimental system for active mass damper （AMD） is built. The modeling and analysis of hydraulic power mechanism, with multi-degree-of-freedom resonant load, are achieved. Focusing on the problem that the frequency band of shaking table hydraulic system cannot meet the requirement of experiment, the controller is designed by using three-state feedback and three-state feedforward control methods, which extends the acceleration frequency band of shaking table and improves the stability of system. The effectiveness of controllers is experimentally validated. It is concluded that the system can reach the expected response frequency band and stability margins.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2008年第12期314-318,共5页
Journal of Mechanical Engineering
关键词
主动控制主动质量阻尼
振动台
液压动力机构建模
多自由度共振性负载
Active control Active mass damper Shaking table Hydraulic power mechanism modeling Multi-degree-of-freedom resonant load
