用逐次超松驰迭代法求出了扭转应力函数差分值。
Using the successive over-relaxation method, the difference values of the torsion stress function are determined.
导出了极坐标系下扇形截面杆件扭转问题的差分格式；用逐次超松驰迭代法求出了扭转应力函数差分值。
A torsion difference scheme of the bar with sectorial cross-section is developed in polar coordinate system.
利用差分法可以求出自由扭转截面内各离散点应力函数的数值解。
Using difference method, numerical solutions of stress function of the discrete points can be obtained.
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