中文摘要：

建立了九辊强力矫直机力能参数模型并计算了九辊强力矫直机矫直60 mm厚Q345中厚板的力能参数。建立了第三万向节轴的三维有限元模型。结果显示,在额定力矩下万向节轴等效应力小于弯曲疲劳极限。

英文摘要：

The force parameter model of nine-roller powerful straightening machine was established, and the force parameters of straightening Q345 plate with 60 mm thickness by nine-roller powerful straightening machine were calculated. 3D finite element model of the third universal joint shaft was established. The results show that the equivalent stress of tmiversal joint shaft is less than bending fatigue limit at rated torque of universal joint shaft.