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以某型挖掘机为研究对象,利用Solidworks建立三维模型并完成装配,导入ADAMS中,通过添加约束条件建立虚拟样机系统。基于ADAMS进行仿真分析,获得动臂主要铰接点处的载荷受力曲线,提出将三维模型简化为二维,再通过平面坐标系受力分析的方法得出动臂铰链处的受力理论值,并与仿真计算得到的数据进行对比,验证仿真结果的准确性,为液压挖掘机进行有限元分析提供可靠的载荷谱,从而可以更加准确地对挖掘机进行结构设计和优化。
With a certain type of excavator as the research object, the Solidworks is used to build a 3D model and complete the assembly and import into ADAMS. The virtual prototype system is established by adding constraints. Based on ADAMS simulation analysis, the load force curve at the main hinge point of the boom is obtained. The three-dimensional model is simplified to two-dimensional. Then, the stress theoretical value of the boom hinge is obtained through the force analysis of the plane coordinate system. Compared with the data obtained from the simulation, the accuracy of the simulation results is verified, and the reliable load spectrum is provided for the finite element analysis of the hydraulic excavator, so that the structure design and optimization of the excavator can be more accurately performed.