The two classes of planar curve generation are DDA(digital differential analyzer)and DCM ( displacement comparison method).

平面曲线的生成算法主要有DDA（数学微分分析器）和DCM（位移比较法）。

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To investigate the influence of mechanical boundary conditions on the thermal stress, a comparison of the results between displacement boundary and stress boundary is made.

同时研究了数值分析中温度荷载作用下应力边界条件和位移边界条件对温度应力的影响。

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By analysis and comparison between the displacement curve in the absence of failure and that in the presence of failure, the causes of clutch failure are known.

通过中间件在无故障情况下的位移曲线与在故障影响下的位移曲线比较分析，最后可以掌握离合器故障产生的原因。

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