非对称渐开线直齿轮齿廓设计与有限元分析

Tooth Profile Design for and Finite Element Analysis of Asymmetrical Involute Spur Gears

非对称渐开线直齿轮的两侧齿廓具有不同的压力角 ,合理的齿廓设计可以达到增加齿轮承载能力、降低噪声和振动的效果。文中推导出了非对称渐开线直齿轮的齿廓方程 ,编制了相应的计算机程序并给出了计算实例 ,建立三维实体模型 ,进行了有限元分析 。

Asymmetrical involute spur gears have different pressure angles on the drive side and coast side. A rational design of the tooth profile of such gears can lead to an increase in gear load capacity, a reduction in noise and vibration levels and a significant enhancement in bending strength. The authors have developed tooth profile equations for the above mentioned spur gears and relevant computer programs with calculation examples being given. In addition, a three dimensional solid model of the spur gears was set up and a finite element analysis of the latter performed.