Study on the Numerical Simulation of Heavy Rail Compound Roll Straightening
The paper adopted the explicit dynamics software ANSYS/LS-DYNA to carry out the numerical simulation calculation for straightening process of 60 kg/m heavy rail with original curvature on the compound roller straightener, and found out the stress variety rule of the 13 distortion sections during the straightening process, it studied the residual stress and distributive condition of straightened rail section and rail bottom through horizontal and vertical straightening, and analysed the effect of V-straightening to H-straightening on residual stress, it also disclosed the producing mechanism of the residual stress during the heavy rail straightening process, the study shows that, the residual stress distribution is in multi-S shape after compound straightening, V-straightening has more effect to residual stress, the study has much important reference value for improving rail quality in straightening process and deepening the straightening theory.
Heavy rail Compound straightening Numerical simulation Residual stress
Wang Peilong Song Hua Chen Ming Gao Mingxin Wang Zhongqiang
School of Mechanical Engineering and automation, University of Science and Technology Liaoning, Ansh Anshan Iron & Steel Co, Ltd.,Anshan Liaoning 14021, China
国际会议
长沙
英文
2923-2926
2010-03-13（万方平台首次上网日期，不代表论文的发表时间）