广义质量弹簧减振器动力学特性研究  

Dynamic characteristics of generalized mass-spring dampers

作　　者：万海波[1] 朱石坚[1] 楼京俊[1] 闫政涛[1] 

机构地区：[1]海军工程大学动力工程学院,武汉430033

出　　处：《振动与冲击》2015年第10期191-193,212,共4页Journal of Vibration and Shock

基　　金：国家自然科学基金青年基金资助项目(51009143)

摘　　要：为降低舰船设备传递到基础的振动,提出广义质量弹簧减振器。介绍该减振器的结构组成,采用结构导纳综合法对其动力学特性进行分析。为验证广义质量弹簧减振器的减振效果,以某船用滑油泵为对象,采用Adams及Ansys软件构建系统刚柔动力学混合模型,对安装减振器前后机脚加速度频、时域响应进行仿真分析。结果表明,广义质量弹簧减振器不仅能降低设备机脚特定频率的振动,亦能抑制该处中高频振动。To reduce vibrations transferred from vessel equipment to a base, a kind of generalized mass-spring damper was proposed. Its structure was introduced, and its dynamic characteristics were analyzed with the mobility synthesis method. In order to verify the vibration reduction effect of the generalized mass-spring damper, the lubrication oil pump on a certain vessel was taken as a study object, its rigid-flexible coupled dynamic model was established, the frequency domain and time domain acceleration responses at the bottom of the pump with and without a generalized mass- spring damper were calculated. The results showed that the generalized mass-spring damper can not only reduce the vibration of the pump feet under a specific frequency, but also suppress middle and high frequency vibrations there.

关 键 词：广义质量弹簧减振器 结构导纳综合法 动力学特性 减振效果 

分 类 号：O322[理学—一般力学与力学基础]