一种可调频吸振器的设计及吸振效果分析  

The Design of an Adjustable Frequency Vibration Absorber and Analysis of Vibration Absorbing Effect

作　　者：李化[1] 狄杰建[1] 赵全亮[1] 

机构地区：[1]北方工业大学机电工程学院,北京100144

出　　处：《山西电子技术》2014年第3期9-11,17,共4页Shanxi Electronic Technology

摘　　要：介绍了吸振器的发展现状,以及吸振器的工作原理。针对被动式吸振器动力参数不可调或离散可调的局限性问题,设计了一种通过改变悬臂梁有效长度的方式来使动力参数连续可调的吸振装置,并分析了共振频率变化时,吸振器对主系统的减振效果。结果表明,该装置可在一定移频范围内对主体结构有显著的减振效果。The development status of vibration absorber and the working principle of vibration absorber are introduced .For the limitations of non-adjustable nature or the discrete adjustable nature of the passive vibration absorber ＇s dynamic parameters , the vibration absorbing equipment is designed by changing the effective length of a cantilever beam to make the dynamic parameters continuously adjustable.When the resonance frequency is changed , the damping effect is analyzed on the primary system .The results show that the equipment can effectively absorb vibration for the main structure in a certain shifting frequency range .

关 键 词：吸振器 连续可调 共振频率 减振效果 移频 

分 类 号：TH113.1[机械工程—机械设计及理论] TP29[自动化与计算机技术—检测技术与自动化装置]