基于负刚度弹簧的半主动隔振器研究  

Research on A Semi-active Isolator with Depressive Spring

作　　者：李满红 李华 张磊[3] 

机构地区：[1]总装车船军代局驻北京军代室,北京100021 [2]63996部队,北京100094 [3]96550部队,洛阳471031

出　　处：《军事交通学院学报》2011年第5期58-59,87,共3页Journal of Military Transportation University

摘　　要：随着内燃机功率和转速的不断提高,其产生的巨大扭振可能会造成传动系统部件,如变速箱等损坏。解决这一问题的方法是在发动机动力输出端安装一个隔振器,用来滤掉发动机的扭振,从而向传动系统输出平稳扭矩。传统的被动式隔振器在设计上存在着承载能力与减振效果之间的矛盾,为此提出了基于负刚度弹簧的半主动控制隔振器。该隔振器在传递大扭矩时仍能具有很好的减振效果。Modern combustion engines produce strong rotational vibrations which could damage elements of the drive train such as the gearbox.A solution to this problem is to mount an isolating device on the output side of the motor.Its function is to filter the torque oscillations to deliver a clean averaged torque to the rest of the drive train.Passive systems have limitations,so that the design of such systems exist contradiction between the effectiveness of the isolation and maximal transmittable average torque.This paper proposes a semi-active isolator that includes a degressive spring and a hydraulic actuator which can filter effectively the vibrations even if the average torque is high.

关 键 词：负刚度弹簧 隔振器 扭矩 

分 类 号：TH131[机械工程—机械制造及自动化]