| 圆管等壁空拉拔制力上界解 |
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| 引用本文： | 姜正义,王国栋,张强. 圆管等壁空拉拔制力上界解[J]. 东北大学学报(自然科学版), 1993, 0(1) |
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| 作者姓名： | 姜正义 王国栋 张强 |
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| 作者单位： | 东北工学院物理系金属压力加工系(姜正义，王国栋)，东北工学院物理系金属压力加工系(张强) |
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| 摘 要： | 利用圆柱坐标系的连续速度场推导出圆管等壁空拉拔制力的计算式。实践证明,拔制力理论计算值与实测值相比,其相对误差在工程允许的误差范围之内。该计算式可用于圆管空拉拔制力计算。
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| 关 键 词： | 拔制力 上界解 连续速度场 空拉 |
An Upper-bound Solution to Drawing Force in Empty Sinking of Tubes with Equal Wall-thickness |
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| Jiang Zhengyi,Wang Goudong,Zhang Qiang. An Upper-bound Solution to Drawing Force in Empty Sinking of Tubes with Equal Wall-thickness[J]. Journal of Northeastern University(Natural Science), 1993, 0(1) |
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| Authors: | Jiang Zhengyi Wang Goudong Zhang Qiang |
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| Abstract: | A formula of drawing force in empty sinking of tubes with equal wall thickness is derived depending on a continuous velocity field in cylindrical coordinate system. The upper-bound solution proves that the theoretical value of drawing force is basically the same as that from experiments with relative errors permissible. The formula is therefore considered as available to the calculation of drawing force on tube sinking. |
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| Keywords: | drawing force upper-bound solution continuous velocity field empty sinking. |
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