基于ANSYS Workbench的液压挖掘机工作装置有限元分析与结构优化  

Finite Element Analysis and Structure Optimization of Hydraulic Excavator Working Device Based on ANSYS Workbench

作　　者：覃祖和 莫兴洋 伍咏晖[1] Qin Zuhe;Mo Xingyang;Wu Yonghui(School of Mechanical Engineering,Guangxi Technological College of Machinery and Electricity,Nanning 530007,China;Guangxi Regional Geological Survey and Research Institute,Guilin 541003,China)

机构地区：[1]广西机电职业技术学院机械工程学院,南宁530007 [2]广西壮族自治区区域地质调查研究院,广西桂林541003

出　　处：《煤矿机械》2022年第3期120-123,共4页Coal Mine Machinery

基　　金：广西高校中青年教师科研基础能力提升项目(2020KY32009);广西职业教育专业发展研究基地“广西职业教育数控技术专业及专业群发展研究基地”项目资助。

摘　　要：以某型号液压挖掘机工作装置为研究对象,运用Creo三维设计软件建立工作装置三维数字化模型,并将工作装置4种典型工况的装配体模型导入ANSYS Workbench有限元软件进行静力学求解,获得了4种典型工况下的应力云图。根据各工况的应力分布情况可知,工作装置工况1的最大应力为679.16 MPa,最大应力位于动臂加强板。为了降低该部位的应力,提出2种方案对该部位进行结构优化。优化后结构的静力学分析结果表明,工作装置动臂加强板的最大应力显著降低,远小于材料的许用应力值,极大地提高了工作装置的结构强度和可靠性。Taking a certain type of hydraulic excavator working device as the research object,the Creo3 D design software was used to establish a three-dimensional digital model of the working device,and the assembly model of the working device was imported into ANSYS Workbench finite element software to solve the statics,and the stresses cloud diagram under the four typical working conditions were obtained.According to the stress distribution of each working condition,the maximum stress of working device working condition 1 is 679.16 MPa,and the maximum stress is located on the boom reinforcement plate.In order to reduce the stress of this part,two schemes were proposed to optimize the structure this part.The optimized structure statics analysis results show that the maximum stress of the boom reinforcement plate of the working device is significantly reduced,far less than the allowable stress value of the material,which greatly improves the structural strength and reliability of the working device.

关 键 词：工作装置 静力学分析 结构优化 

分 类 号：TD422.2[矿业工程—矿山机电]