中文摘要：

使用有限元方法对航空渐开线花键副摩擦进行接触分析,得到花键副的接触应力及相对滑移分布规律,并考虑接触长度、花键壁厚和摩擦因素对花键副接触的影响。研究结果表明：花键副接触应力及相对滑移分布不均匀,端部的接触应力及相对滑移较大;增加接触长度不能提高花键副的承载能力,接触长度与花键分度圆直径之比不得大于1.2,最佳为0.5;花键壁厚越薄,端部接触应力和相对滑移越大;摩擦因素对接触应力几乎没有影响,但相对滑移与摩擦因素成反比。

英文摘要：

Based on the finite element method, the frictional contact property of aviation involute spline couplings was analyzed, the contact stress and relative slip distributions of aviation involute spline couplings were obtained, and the influence of contact length, wall thickness of spline and friction coefficient on contact characteristics of spline couplings was considered. The results show that the contact stress and relative slip distributions of involute spline couplings are uneven, and the value of the end is relatively larger. Increasing the contact length cannot increase the carrying capacity, and the ratio of contact length and spline pitch circle diameter cannot be larger than 1.2, with the optimal ratio being 0.5. With the decrease of spline wall thickness, the contact stress and relative slip of the end increase. Friction coefficient is negligible to contact stress, but is inversely proportional to relative slip.