The content of this research is as follows: Direct modeling for tooth surface of ti worm in ANSYS is difficult for the equations of contact lines being a kind of transcendental function.

主要研究内容如下：由于TI蜗杆齿面上的接触线方程是一种超越函数，直接在有限元分析软件ANSYS中建模比较困难。

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Because of the tooth thickness of the dedendum is larger than that of the common involute gear and the Pitchs do not contact each other, the beam strength and surface strength of tooth are increased.

由于该齿轮的齿根厚度比普通渐开线齿轮的齿根厚，并且节点附近不相接触，因此，其轮齿弯曲强度和接触强度都提高。

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The algorithm of disperse tooth surface contact analysis is established and deduced, which lays the foundation for the digital measure and analyzing of tooth surface.

建立和推导了离散齿面接触分析算法，为齿面数字化测量分析提供基础。

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