The numerical model for an asymmetric helical gear is developed through analytical equations, and the contact fatigue life (CFL) is estimated based on the Basquin and Coffin-Manson method. Further, the numerically simulated CFL and bending fatigue life are validated with the experimental results based on the literature. By employing the proposed model, the significant asymmetric helical gear parameters of helix angle, gear ratio, teeth number, module, face width, pressure angle and coefficient of friction are estimated for customized power transmission by improving the CFL. Finally, it is revealed that an asymmetric helical gear exhibits enhanced CFL over symmetric helical gear.

通过解析方程建立了非对称斜齿轮的数值模型，并基于 Basquin 和 Coffin-Manson 方法估算了接触疲劳寿命 (CFL)。此外，基于文献的实验结果验证了数值模拟的 CFL 和弯曲疲劳寿命。利用所提出的模型，通过改进CFL，为定制动力传输估计了重要的非对称斜齿轮参数，如螺旋角、齿轮比、齿数、模数、面宽、压力角和摩擦系数。最后，揭示了非对称斜齿轮比对称斜齿轮表现出增强的 CFL。