基于ANSYS的履带起重机桁架式起重臂模态分析  

Modal analysis on truss jib of crawler crane based on ANSYS

作　　者：师素娟[1] 刘龑[1] 

机构地区：[1]华北水利水电学院,河南郑州450011

出　　处：《建筑机械》2012年第4期82-84,18,共3页Construction Machinery

基　　金：水利部"948"项目(201048)

摘　　要：基于ANSYS有限元分析软件对履带起重机吊臂进行有限元模态分析,得到各阶模态下吊臂的固有频率和振型,了解不同频率载荷对吊臂的影响,提出设计改进措施并找出外部激励应当尽量避免的危险频率。By means of ANSYS finite-element analysis software, finite element modal analysis on truss jib of crawler crane was conducted. The natural frequencies and modes of vibration of the jib are worked out in different modes. Effects of vibration source with various frequency on jib was gained. The improvement measures are put forward and the dangerous frequency of external excitation which should be avoided are found out.

关 键 词：履带起重机 桁架式起重臂 ANSYS 模态分析 固有频率 

分 类 号：TH213.7[机械工程—机械制造及自动化]