主被动混合压电网络悬臂梁结构的建模与比较

发布时间：2018-02-28 12:34

本文关键词： 主被动混合压电网络 Euler-Bernoulli悬臂梁 Hamilton原理 Rayleigh-Ritz法速度反馈控制　出处：《振动与冲击》2017年03期 　论文类型：期刊论文

【摘要】：以Euler-Bernoulli悬臂梁作为研究对象,对主被动混合压电网络(Active-Passive Hybrid Piezoelectric Network,APPN)进行分析与优化。利用Hamilton原理和Rayleigh-Ritz法建立集成式和分离式APPN悬臂梁结构的动力学模型,并对APPN中的电阻和电感进行参数优化。在此基础上,利用速度反馈控制设计主动控制器,分别对集成式和分离式APPN悬臂梁结构的开环和闭环特性进行数值仿真分析。仿真结果表明,两种结构形式的APPN均能够有效地抑制结构振动,集成式APPN在窄频带的振动控制性能优于纯主动控制,而分离式APPN则在更宽的频带具有比集成式APPN和纯主动控制更好的振动控制性能。
[Abstract]:The Euler-Bernoulli cantilever beam is used as the research object to analyze and optimize the active passive Hybrid Piezoelectric network (APPN). The dynamic models of the integrated and separated APPN cantilever structures are established by using the Hamilton principle and the Rayleigh-Ritz method. The parameters of resistance and inductance in APPN are optimized. On the basis of this, the active controller is designed by using speed feedback control. The open-loop and closed-loop characteristics of the integrated and separated APPN cantilever structures are numerically simulated and analyzed respectively. The simulation results show that the two types of APPN can effectively suppress the structural vibration. The vibration control performance of integrated APPN is better than that of pure active control in narrow band, while the vibration control performance of separated APPN is better than that of integrated APPN and pure active control in wider frequency band.
【作者单位】：北京机械设备研究所;中国人民解放军驻航天二院二O六所军事代表室;哈尔滨工业大学航天学院;
【基金】：国家自然科学基金(11402087)
【分类号】：O327

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