Claw couplings generally connect two axes and facilitate torque transmission using gear teeth, and are available with a variety of gear teeth shapes. Among these, Curvic couplings are widely used in heavy-duty gas turbines and the aeroengine industry because of the special shape of their teeth and attributes such as reliable positioning, precise centering, excellent structural stability, strong load bearing ability, and adequate strength, vibration, and fatigue life.¹ Because the contact stiffness of these joint surfaces greatly affects the static and dynamic characteristics of mechanical systems, it is necessary to predict dynamic characteristics accurately and secure stability in the rotor system rotating at high speed where Curvic couplings are primarily applied. For this prediction, contact and bending stiffness must be evaluated, which are closely related to the contact surface roughness.

中文翻译：

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考虑接触角和表面粗糙度的曲线型联轴器接触和弯曲刚度分析

爪形联轴器通常连接两个轴，并通过齿轮齿促进扭矩传递，并且可提供多种齿轮齿形状。其中，Curvic联轴器因其特殊的齿形和可靠的定位，精确的定心，出色的结构稳定性，强大的承重能力以及足够的强度，振动等特性而广泛用于重型燃气轮机和航空发动机行业。和疲劳寿命。^1个由于这些接合面的接触刚度极大地影响了机械系统的静态和动态特性，因此有必要准确预测动态特性并确保主要应用Curvic联轴器的高速旋转转子系统的稳定性。为了进行此预测，必须评估接触刚度和弯曲刚度，这些刚度与接触表面粗糙度密切相关。