本文以标准渐开线直齿圆柱齿轮作为研究对象。

The standard involute cylinder gear is studied in this paper.

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本文阐述了渐开线直齿圆柱齿轮顶圆直径及齿轮模数、变位系数和压力角等参数的确定方法和步骤。

The method and procedure of measuring and calculating involute spur gear geometrical parameters such as tip diameter, module, modification coefficient and pressure Angle were shown in this paper.

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本文基于齿轮啮合原理及振动冲击理论，采用集中质量法建立了由一对渐开线直齿圆柱齿轮组成的传动系统三自由度数学模型。

A three freedom degrees mathematical model of a pair of involute spur gear transmission system is built using the lumped mass method, based on gear meshing theory and vibration impact theory.

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