摘要
提出了一种基于正负刚度并联半主动控制扭振减振器,论述了其工作原理。推导了正负刚度并联机构的刚度表达式,并分析了其弹性特性。通过建立扭振减振器2自由度强非线性动力学模型,采用设计的控制策略,对其进行了动力学特性仿真,并将结果与传统的双质量飞轮式被动扭振减振器进行对比,证实了该减振器的扭振控制效果。
A torsional vibration damper with semi-active control based on combined positive and negative stiffness in parallel is presented with its working principle described. The stiffness expression of positive and negative stiffness parallel mechanism is derived and its elastic properties are analyzed. Based on a 2 DOF nonlinear dynamics model for torsional vibration damper established and a control strategy designed, its dynamics characteristics are simulated. The results are compared with that of traditional passive torsional vibration damper with dual mass fly- wheel, verifying its effects of torsional vibration control.
出处
《汽车工程》
EI
CSCD
北大核心
2015年第4期430-434,459,共6页
Automotive Engineering
基金
国家自然科学基金(51375047)资助
关键词
扭振减振器
动力学
负刚度
弹性特性
torsional damper
dynamics
negative stiffness
elastic characteristics
