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在建立齿轮箱三维实体模型的基础上,对其进行模态分析,得出前10阶固有频率及振型。并利用模态叠加法对齿轮箱体工况激励下的瞬态响应进行分析,得出了齿轮箱系统的动态响应。结果表明,在这种载荷的作用下,最大应力集中出现在齿轮箱下箱体肋板区域,而箱体其他部位的应力值很小。通过计算得到的动态响应参数,为齿轮箱系统设计进一步优化奠定了基础。
Based on the establishment of gearbox three-dimensional solid model, modal analysis of the three-dimensional gearbox model is carried out, the first 10 natural frequencies and mode shapes are obtained. The modal superposition method is used to analyze the transient response of the gear box under the condition of excitation, and the dynamic response of the gearbox system is obtained. The results show that under the action of this load, the maximum stress concentration occurs in the rib area of the box below the gear box, while the stress in other parts of the box is very small. The calculated dynamic response parameters provide the basis for further optimization of gearbox system design.