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基于材料弹塑性及齿面摩擦的影响,建立了齿轮齿条的三维非线性有限元分析模型,并对运转过程进行动态接触仿真,得出纯弹性、弹塑性材料及有、无摩擦4种情况下齿轮齿条的时变接触力、时变接触面积及动态应力,并与Hertz理论计算得到的应力值进行对比分析。
Based on the influence of material elastic-plasticity and tooth surface friction, a three-dimensional nonlinear finite element model of gear and rack was established, and the dynamic contact simulation of the running process was carried out. The results show that pure elastic, elastoplastic material and non-friction The time-varying contact force, the time-varying contact area and the dynamic stress of the lower rack and pinion are compared with the stress values calculated by Hertz theory.