振动机械二次隔振设计中阻尼比的确定  

Determination of Damping Ratio in Design of Secondary Isolation Mounting for Vibrating Machines

作　　者：王新文[1] 白金峰[1] 胡云龙[1] 王世茂[1] 韩永华[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《煤矿机械》2014年第12期25-27,共3页Coal Mine Machinery

摘　　要：为了防止通过共振区时振动筛振幅过大的问题,在地基和隔振装置之间安装阻尼器是必不可少的。此法可有效减小通过共振区时振动筛对地基的动负荷。通过分析阻尼比对振动筛通过共振区时动负荷的影响和阻尼比对振动筛正常工作时动负荷的影响,提出了最佳阻尼比的取值范围。In order to prevent the amplitude of vibration screen being too large when it passes resonance region, it is a must to install the damper between the foundation and the isolation device.This method can effectively reduce the dynamic load of vibrating screens, when it passes resonance region. Through the analysis of the influence of the damping ratio when it passes through the resonance region and when it is normal working, I put forward the optimum range of damping ratio.

关 键 词：振动筛 二次隔振 动负荷 阻尼比 

分 类 号：TD453[矿业工程—矿山机电] TH122[机械工程—机械设计及理论]