摘要
为将磁流变技术更好地应用在车削减振装置中,提出了磁流变阻尼器主要的动力学模型,研制了基于动力学减振原理的磁流变车削减振装置,建立了该装置的动力学模型。通过受力分析,推导了车床刀架主振系统相对振幅的表达式。由于刚度和阻尼是影响磁流变减振装置特性的两个重要参数,所以采用数值搜索法对动力学模型中的刚度和阻尼参数进行优化,修正了各频段的区间,确定与最佳减振效果相对应的刚度和阻尼。
In order to better apply magnetorheological technology in turning damping device, the main dynamic model of MRF damper is put forward, a magnetorheological turning damping device based on dynamic damping principle is developed, and the dynamic model of the device is established. Through force analysis, the expression of relative amplitude of main vibration system of lathe tool holder is derived. Since stiffness and damping are two important parameters affecting the properties of magnetorheological damping device, the numerical search method to the dynamic model of stiffness and damping parameters were optimized, interval of each frequency band was fixed, and the corresponding optimal damping effect of stiffness and damping was determined.
作者
邱涛
周爽
叶小冬
Qiu Tao;Zhou Shuang;Ye Xiaodong(University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《农业装备与车辆工程》
2018年第10期93-95,100,共4页
Agricultural Equipment & Vehicle Engineering
关键词
磁流变减振装置
动力学模型
参数优化
数值搜索法
magnetorheological damping device
dynamic model
parameter optimization
numerical search method
