为了增强碟形橡胶联轴器的强度和性能,提出在该联轴器的核心元件碟形橡胶元件的内外环中增加金属环。使用有限元仿真分析的方法,建立碟形橡胶联轴器的三维模型和有限元模型,通过单轴拉伸试验确定橡胶材料基于Mooney-Rivlin的力学性能系数,并通过有限元软件ABAQUS对碟形橡胶元件进行径向、轴向和扭转三种工况的仿真计算,对增加金属环前后的碟形橡胶元件在三种工况下的刚度和内部最大应力进行对比分析,并通过刚度试验验证计算结果的准确性。结果表明在增加金属环后,碟形橡胶元件的径向、轴向和扭转刚度分别提高了6.2%、8.0%和10.2%,内部最大应力分别减少了2.0%、9.7%和19.2%。说明通过增加金属环的方式可以有效增强碟形橡胶元件的刚度减伤其应力集中的现象,提高了该联轴器的性能和强度。

To enhance the strength and performance of a diaphragm-type rubber coupling, metal rings were introduced into the inner and outer rings of the core component, the diaphragm-type rubber element. Finite element simulation analysis was employed to establish a three-dimensional model and a finite element model of the diaphragm-type rubber coupling. The mechanical performance coefficients of the rubber material, based on the Mooney-Rivlin model, were determined through uniaxial tensile testing. Finite element software ABAQUS was then used to simulate three working conditions—radial, axial, and torsional—both before and after the addition of metal rings. A comparative analysis was conducted on the stiffness and maximum internal stress of the diaphragm-type rubber element under these conditions, and experimental validation was performed to verify the accuracy of the simulation results. The findings indicate that, following the addition of metal rings, the radial, axial, and torsional stiffness of the diaphragm-type rubber element increased by 6.2%, 8.0%, and 2%, respectively, while the maximum internal stress decreased by 2.0%, 9.7% and 19.2%, respectively. These results demonstrate that incorporating metal rings effectively enhances the stiffness of the diaphragm-type rubber element while reducing stress concentration, thereby improving the overall performance and strength of the coupling.