【摘要】 利用Solidworks2000软件建立2000CL挖掘机动臂三维实体模型,将此模型切换到AutoCAD2000中,再加载ZRCAE有限元分析软件,在动臂的最大卸载半径工况下考虑惯性力影响,分析动臂的应力分布规律和变形规律.结果表明:在铰链孔附近应力变幅较大,最大应力发生在变幅缸与动臂铰接点下方,σmax=18.66MPa,最小应力发生在动臂与斗杆连接点之前,σmin=0 46MPa动臂整体应力分布平缓,最大应力远低于屈服应力,有足够的强度储备;动臂与斗杆接触部位的位移最大,umax=5.81mm,与实际情形相符.更多还原

【Abstract】 The three dimensional solid model of 2000CL construction machine arm is created by using the （Solidworks） 2000,then it is transmitted into AutoCAD 2000.The ZRCAE finite element program is also loaded in AutoCAD 2000,under the maximum unloading radius conditions,the tress and deformation contributions of construction machine arm are studied by using the ZRCAE program.The result shows that the region near the hinge hole has sharp variation in stress distribution,the maximum stress σ_max=18.66 MPa,the minimal dress is before the region where arm joints the shovel bar,σ_min=0.46 MPa;the maximum displacement is in the region where arm joints the shovel bar,u_max=5.81 mm.更多还原