管棒材等曲率矫直力模型可视化设计-JournalofNortheastern.PDF

第33 卷第3期 东 北 大 学 学 报 ( 自 然 科 学 版 ) Vol133,No.3 2012 年 3 月 Journal of Northeastern niversity( Natural Science) Mar. 2 0 12 张子骞, 张柏森, 杨会林, 颜云辉 ( , 110819) : , , ANSYS/ LS- DYNA ,, # , # : ;; ; ; LS- DYNA : TF 748.05 : A : 1005-3026( 2012)03-0409-05 Visual Design of a Straightening Force Model for Tubes and Bars Straightened by Equal Curvature ZH A N G Zi-qian, ZHA N G Bai-sen , YA N G H ui-lin , YA N Yun-hui ( School of Mechanical Engineering Automation, Northeastern niversity, Shenyang 110819, China. Corresponding author: ZHANG Z-i qian, E-mail: zqzhang @ me.neu.edu.cn) Abstract: Since there is no accurate mathematical model, the straightening force is usually determined by worker. s experience and repeated experiments when tubes and bars are straightened by the rolls with equal curvature. Aiming at this problem, a straightening force model was established on the basis of the principle of mechanical equivalence, and then the equal curvature straightening process was visually simulated by the ANSYS/ LS-DYNA. T he results confirmed by local experiments is shown to be valid and receivable. The key parameters under different conditions of the model were determined by visual simulations, which may make the model applicable in different situations. Key ords: tubes and bars; equal curvature straightening; straightening force; visualization; LS- DYNA , # , , , , ,, , # ; ,