凿岩机伸缩臂的试验模态分析  

Modal Testing Analysis of Telescopic Arm of a Rock Drill

作　　者：宁怀明[1] 袁东[1] 

机构地区：[1]洛阳工业高等专科学校建筑工程系,河南洛阳471023

出　　处：《石油矿场机械》2007年第8期43-46,共4页Oil Field Equipment

基　　金：河南省科技攻关项目(0424260102)

摘　　要：采用有限元法和脉冲锤击法对某厂生产的凿岩台车伸缩臂进行了理论计算和试验模态分析，获得了2种工况下0～300Hz以内凿岩台车伸缩臂的各阶模态参数，并对各阶模态振型进行分析，确定了该模型的前几阶固有频率及振型，为后期该机器的优化设计提供参考。Through FEM and modal testing analysis of telescopic arm of rock drill using theoretical calculation and hammer exciting with impulse, we attain all of the modal parameter of telescopic arm of rock drill, and make analysis of every mode of vibration, the frequency of the front periods and its corresponding vibration mode of the model are calculated through the two methods, which provides valuable reference for the optimized designs later of the machine.

关 键 词：凿岩机 伸缩臂 试验模态分析 

分 类 号：O241.82[理学—计算数学]