磁流变弹性体主动式自调谐吸振器控制系统的研究

摘要

In order to control automatically an adaptive-active tuned vibration absorber based on magnetorheological elastomers, an algorithm of combining mutative step-size optimization and feedback control was implemented, a controller based on TMS320F2812DSP was designed. Using this control system, the vibration attenuation performance was experimentally investigated on a multi-mode experimental platform. The experimental results showed that the controller can control the absorber independently and efficiently within 15 seconds.%为了实现对一种基于磁流变弹性体的主动式自调谐吸振器的减振控制,提出了变步长寻优与反馈控制相结合的控制算法,设计了以TMS320F2812 DSP为核心的控制器.利用以上控制系统,在多模态实验平台上进行了吸振器的减振实验研究,结果表明该控制系统能够独立控制磁流变弹性体主动式自调谐吸振器的减振,寻优时间小于15 s,并且减振效果良好.