间隙销支座用作三向不动铰应用于支座所在平面为圆形的球面网壳，存在较大的结构安全隐患。
The structure may be unsafe when clearance pin connections are adopted as three directional hinge support system for spherical lattice shells.
建立了地下铲运机整机结构有限元模型，提出铰销、油缸、轮胎及边界条件的模拟方法。
The FE model for the underground LHD machine's bodywork structure was built and the simulation methods for its joint, hydraulic actuator, tyre and boundary conditions were proposed.
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