小型液压挖掘机工作装置虚拟样机的仿真与分析  

Simulation and Analysis on the Virtual Prototype of the Small Hydraulic Excavator

作　　者：李娜[1] 邓子龙[1] 王宏宇[2] 毛佳[1] 陈芳 

机构地区：[1]辽宁石油化工大学机械工程学院,辽宁抚顺113001 [2]上海交通大学机械与动力工程学院,上海200240 [3]抚顺市机电职业技术学校,辽宁抚顺113003

出　　处：《辽宁石油化工大学学报》2012年第4期68-71,共5页Journal of Liaoning Petrochemical University

基　　金：辽宁省教育厅资助项目(L2010246)

摘　　要：利用PRO/E软件建立液压挖掘机工作装置的三维实体模型,并导入到ADAMS中,添加约束建立虚拟样机。计算各个油缸位移的step函数、铲斗齿尖受力的step函数和物料重力的step函数,并进行动力学仿真,得到几个主要铰接点处的受力曲线,为液压挖掘机工作装置的强度分析和结构优化提供了依据。运用模拟测力计的原理,对虚拟样机斗杆油缸的最大挖掘力进行仿真测试。计算出斗杆油缸的最大挖掘力,将计算结果与仿真结果进行了对比分析,为挖掘机挖掘力的测试提供了一条新途径。The software PRO/E was adopted to create 3D solid model of the hydraulic excavator work device.Then established the virtual prototype after added restrictions by which the model imported to the software of ADAMS.The force curves of several main articulated points were obtained through the dynamics simulation by which the step function of the cylinder displacement,the step function of the force of the bucket tooth tip,the step function of the material gravity was caculated.The results has provided the basis for the strength analysis and structural optimization of the hydraulic excavator working device.The simulation test for the bucket arm cylinder of virtual prototype maximum digging force was accomplished by utilizing the principle of analog dynamometer.Then calculate the bucket arm cylinder maximum digging force,and the comparative analysis between the calculation results and the simulation results was completed.The research has provided the new avenue for the test of the excavator digging force.

关 键 词：液压挖掘机工作装置 机械系统动力学自动分析 动力学 仿真 挖掘力 

分 类 号：TB42[一般工业技术]