本文提出的有误差渐开线圆柱齿轮动力传动特性模拟计算程序,可以计算齿面接触斑点,齿根弯曲应力与齿面接触应力的分布情况、齿面瞬时温度的比值及齿轮振动特性等。计算结果与实测结果相比较,在验证计算方法的可靠性的基础上,经过理论分析,归纳为齿轮接触斑点与齿轮传动特性关系的两个定理。对齿轮接触斑点的检测及轮齿修形方面,是从未有过的理论探讨。 In this paper, the calculation program of the involute cylindrical gear transmission with errors is given, which can calculate the contact patch, the distribution of tooth root bending stress and tooth contact stress, the ratio of tooth surface instantaneous temperature and gear vibration characteristics. The calculated results are compared with the measured results. Based on the verification of the reliability of the calculation method, theoretical analysis shows that there are two theorems about the relationship between the contact points of gears and the gear transmission characteristics. The detection of gear contact spots and gear modification, is never discussed theory.