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在建立等距型面与平键联接强度计算的有限元模型基础上，通过上机计算，找到了这两种联接在传递扭矩时各自应力的大小和分布规律以及扭矩与应力之间的关系，从而得出了它们在强度方面的定量差别．
Based on the finite element model of the joint strength calculation of equidistant profile and flat bond, the relationship between the magnitude and distribution of stress and the torque and stress of the two kinds of coupling when transmitting torque are found through on-machine calculation. The resulting quantitative differences in their intensity.