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摘要：针对SDZ20型轮式装载机的工作装置，建立了与实际情况吻合的三维有限元模型，在典型载荷工况下，对其进行静态结构分析，得到了整个工作装置的应力、变形分布。分析的结果可作为装载机工作机构设计和结构优化的依据,并对工程机械及同类结构有一定的指导意义。 关键词：装载机 工作装置 有限元 FEM Analysis in Working Device of Wheel Loader (Die&mold engineering technology research center of Shandong Univ.) Li Mengxian Luan Yiguo Guan Yanjin Abstract: In this paper, a 3D FEM model is constructed according to the working device of SDZ20 wheel loader in practical loadcase, the static structural analysis is carried out under the typical load, and the stress and strain fields are obtained. The result provides the basis for designing the working mechanism and optimizing the construction of wheel loaders, and has general guidance in similar construction of Engineering Machine. Key words: Loader Working device FEM