针对产品装配设计中存在的装配约束演化问题，提出了基于配合面偶的装配约束建模方法。
Considering the problem of assembly constraints evolution in the process of product assembly design, a method of assembly constraints modeling based on mating surface couples was presented.
提出了利用动态热电偶测得的齿面闪温分布曲线计算齿面积分温度的方法。
The method of calculating integral temperature by measured flash temperature curve was put forward.
用动态热电偶法测量齿面闪温分布，设计制造可测出全齿面闪温的三片组合带电阻式齿轮结构。
Surface temperature on gear teeth was measured by dynamic thermocouple method. A test gear construction consisting of three pieces and electric resistance was designed.
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