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挖掘机动臂有限元模态分析
引用本文:铁巍巍,王晓枫,杨茹萍,周雍.挖掘机动臂有限元模态分析[J].机械设计与制造,2011(3).
作者姓名:铁巍巍  王晓枫  杨茹萍  周雍
作者单位:1. 合肥工业大学,机械与汽车工程学院,合肥,230009;河南科技大学,建筑工程学院,洛阳,471003
2. 合肥工业大学,机械与汽车工程学院,合肥,230009
3. 河南科技大学,建筑工程学院,洛阳,471003
摘    要:液压挖掘机在工作时由于冲击和振动会引起较大的动态应力,可能造成结构的破坏.在ANSYS环境下对某小型液压挖掘机的动臂进行了建模,分完全自由状态和实际约束状态两种情况对该挖掘机动臂的模态进行了三维仿真分析,提取和扩展了前15阶模态,考察了其固有频率和主振型,为做挖掘机动臂相应分析提供了重要的模态参数,为液压挖掘机的动臂及工作装置整体的振动特性分析及结构动力特性的优化设计提供了依据.

关 键 词:小型挖掘机  动臂  模态分析  有限元

Modal analysis of excavator arm based on finite element method
TIE Wei-wei,WANG Xiao-feng,YANG Ru-ping,ZHOU Yong.Modal analysis of excavator arm based on finite element method[J].Machinery Design & Manufacture,2011(3).
Authors:TIE Wei-wei  WANG Xiao-feng  YANG Ru-ping  ZHOU Yong
Affiliation:TIE Wei-wei1,2,WANG Xiao-feng1,YANG Ru-ping2,ZHOU Yong1(1School of Mechanical and Automotive Engineering,Hefei University of Technology,Hefei 230009,China)(2School of Architectural Engineering,He'nan University of Science and Technology,Luoyang 471003,China)
Abstract:It will bring bigger dynamic stress because of impact and vibrancy of the hydraulic excavator when it is working,which maybe leads to the damage of its structure.The model of the arm of small-scaled hydraulic excavator is built by using ANSYS.The 3D Simulation Analysis of arm of excavator is carried out in two states which are absolute freeness and practical restriction.At last,the former 15 modes are adopted and extended.Its inherent frequency and main vibration mode is reviewed.The study provides importan...
Keywords:Small-scaled excavator  Arm of excavator  Modal analysis  Finite element  
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