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Stress.translation of XN-1040 rear axle housing of light-duty track can be get by meansof three dimensin finite element calculation and its results analysis.According to calculation results.a three dimension wire-frame model can be made by us-ing Auto-CAD 11.0 and shape-changing of rear axle housing can be seen by means of thismodel. 对XN-1040轻型汽车后桥壳体进行三维有限元应力计算,并分析计算结果,得到该型后桥壳体的应力大小,位移大小,应力分布状况,并通过Anto-CAD11.0构造变形前后的三维线框模型.从而直观的分析后桥壳体的变形. n this paper. a mechanical model of lateral traction propenties for vehicle tine was estaslished by means of statisticalfitting on the basis of result analysis of actual ctire tests. The model has low fitting error and is colse to actual cases.Itcan therefore play a role in vehicle dynamic simulating calculations. 本文通过对现有轮胎试验结果的分析,用统计拟合方法建立了汽车轮胎的纵向附着特性力学模型,所建模型与实际情况接近,拟合精度高,在汽车动力学模拟计算中有着重要的意义. The structure and function of special stretcher of emergency ambulance are briefly introduced, and the calculating model for finite element methord(FEM) of stretcher is established. The stretcherss strength and stiffness are calculated by using FEM and the result analysis are carried out. 简要介绍了急救车专用担架的结构和功能,建立了担架结构的有限元计算模型,对担架结构的强度和刚度进行了有限元计算,并对计算结果进行了分析。
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