轧辊磨床托瓦松动的动力学建模及振动特性分析  

Dynamics Modeling and Analysis on Vibration Characteristics of Roll Grinder with Pillow Looseness

作　　者：丁岩[1] 邵毅敏[1] 袁意林 王盛军[2] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]宁波宝新不锈钢有限公司,宁波315800

出　　处：《中国机械工程》2014年第21期2848-2852,2859,共6页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(51035008)

摘　　要：由于轧辊磨床托瓦松动故障的动力学行为直接影响磨削工作状态,故基于磨床双时延模型,建立了轧辊磨床托瓦松动的动力学模型,研究了托瓦松动时磨削系统的动力学特性。通过对正常工况和不同间隙托瓦松动工况的仿真分析,获得了相应的振动响应和包络谱特征,仿真结果与试验数据较一致,验证了轧辊磨床托瓦松动的动力学模型的有效性和准确性。To study the effects of pillow looseness on dynamic behavior of a roll grinder,a dynamics model of the grinder was proposed based on the two time delays model.Then the dynamic responses of the grinding system were solved.Investigations on the vibration responses and the envelope spectrums of the grinding system with or without pillow looseness were carried out numerically and experimentally.A good agreement between the simulation results and experimental results validates the effectiveness and accuracy of the proposed model.

关 键 词：轧辊磨床 托瓦松动 动力学模型 振动特性 

分 类 号：TG58[金属学及工艺—金属切削加工及机床]