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 massspring 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.
引文
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