声纳安装平台主动隔振系统的研究  

Research on active vibration isolation system of sonar platform

作　　者：陈定中[1] 魏燕定[1] 程耀东[1] 

机构地区：[1]浙江大学现代制造工程研究所,流体传动与控制国家重点实验室,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2005年第8期1174-1178,共5页Journal of Zhejiang University：Engineering Science

基　　金：声纳重点实验室基金资助项目(51446020101JW0404);流体传动与控制国家重点实验室基金资助项目.

摘　　要：以超磁致伸缩执行器作为声纳安装平台有源隔振系统的主动控制器,研究了系统的流-固耦合动力学特性.分析了声纳安装平台有源隔振系统对于船舷侧振动的响应,分别以位移、速度和加速度作为反馈变量对隔振系统进行反馈控制,分析其主动隔振控制效果.结果表明,在声纳安装平台两级有源隔振系统中,以声纳安装平板加速度作为反馈变量的综合隔振性能最好,并且随着反馈增益的增大,隔振效果明显增强,有效隔振频段范围扩大.Using a giant magnetostrictive actuator as active controller of a sonar platform＇s two-layer active vibration isolation system, the dynamic characteristics of the system were studied with fluid-solid coupling considered. The active vibration isolation was implemented by adopting displacement, velocity and acceleration as feedback variable respectively for vibration control. The results show that the active vibration isolation system has the best isolation performance when the acceleration of the sonar platform is adopted as the feedback variable; and that with increased feedback gain, the isolation performance against the vibration gets better, and the frequency bound for vibration isolation gets wider.

关 键 词：声纳安装平台 超磁致伸缩执行器 流固-耦合 主动隔振 

分 类 号：TH113.1[机械工程—机械设计及理论]