齿根过渡曲线曲率半径的大小对轮齿的弯曲疲劳强度极限有着极为重要的影响,这是由于轮齿的危险截面位于曲线的过渡区(图1),同时,齿根危险截面的大小取决于过渡曲线的曲率。此外,过渡曲线曲率半径将引起根的应力集中。对各种不同几何参数的 The radius of curvature of the tooth root transition curve has a very important effect on the bending fatigue strength limit of the gear tooth because the dangerous cross section of the tooth is located in the transition region of the curve (Figure 1). At the same time, the size of the root dangerous cross section depends on The curvature of the transition curve. In addition, the radius of curvature of the transition curve will cause root stress concentration. For a variety of different geometric parameters