管棒材等曲率矫直力模型可视化设计

针对管棒材在等曲率矫直时矫直力无精确数学模型仅靠人工经验或反复试矫确定的实际问题,基于力学等效原则建立了等曲率矫直最大矫直力的数学模型,并利用ANSYS/LS-DYNA对矫直过程进行可视化模拟.所得的结果在经现场实验证明是正确和可信的前提下,通过多次可视化模拟实验,确定了不同条件下矫直力模型中关键参数的取值,使该模型在不同场合下的运用成为可能.

Visual Design of a Straightening Force Model for Tubes and Bars Straightened by Equal Curvature

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.The 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.