机械科学与技术2012，Vol.31Issue(1)：135-137,3.
基于有限元法的桥式起重机桥架模态分析
Finite Element Modal Analysis of Overhead Traveling Crane′s Structure
摘要
Abstract
An overhead traveling crane′s vibration causes resonance and fatigue damage,thus affecting the life of machinery equipment.This paper finds out the causes of the vibration and conducts the finite element（FE） modal analysis of the double-girder structure of the overhead traveling crane,obtaining the inherent frequencies and vibration modes of the girder under the modals of various orders.With the parameters obtained through the FE modal analysis,the paper modifies the FE model of the girder so that its inherent frequencies can be far away from the frequency of externally-excited vibration,thus avoiding the resonance.It provides a theoretical basis for the girder′s dynamics modification.关键词
桥式起重机/有限元法/模态分析Key words
finite element method/modal analysis/overhead traveling crane/girder/vibration/inherent frequency分类
机械制造引用本文复制引用
杨明亮,徐格宁,常争艳,晋民杰..基于有限元法的桥式起重机桥架模态分析[J].机械科学与技术,2012,31(1):135-137,3.基金项目
山西省高校科技研究开发项目 （）
太原科技大学博士启动基金项目 （）
山西省科技公关项目（20100321058-2）资助 （）
