噪声与振动控制2017，Vol.37Issue(6)：35-40,6.DOI:10.3969/j.issn.1006-1355.2017.06.007
工业厂房动力机器工作平台振动疲劳性能研究
Research on Vibration Fatigue Performance of Dynamic Machine Working Platforms in Industrial Factory Buildings
摘要
Abstract
The working platform of a sinter screening room is taken as the research object. Its vibration performance is tested in different working conditions. The results of the time-domain and frequency-domain analyses show that there exists the resonance for the platform and the vibration amplitudes are overlarge. Then, the finite element model is built to study the vibration fatigue performance of the working platform. The transient dynamic analysis for finite element model is done with the load of the measured data in the vibration test as the excitation, and the fatigue performance of the working platform in different resonant conditions is obtained. The results of the fatigue performance in three kinds of working conditions show that the vibration amplitude of the node is increased by 25.6 % and the fatigue life is reduced by 65.68 % when the frequency of the vibrating screen f1 is equal to the natural frequency of the structure f2;the amplitude of node is increased by 17.6%and the fatigue life is reduced by 50.33%when f1 and f2 differ by 20%;the amplitude of node is increased by 7.23%and the fatigue life is reduced by 23.76%when f1 and f2 differ by 40%.关键词
振动与波/工作平台/共振/有限元/振动疲劳Key words
vibration and wave/working platform/resonance/finite element method/vibration fatigue分类
通用工业技术引用本文复制引用
薛刚,曹美玲,孟煜童..工业厂房动力机器工作平台振动疲劳性能研究[J].噪声与振动控制,2017,37(6):35-40,6.基金项目
内蒙古自治区自然科学基金资助项目(2015MS0552) （2015MS0552）
