基于振动机理的中厚板剪切力公式的修正

Correction of Shear Force Formula Based on Vibration Mechanism

剪切是中厚板生产流程中一个非常重要的工序,包括定尺、定宽、切试样等。钢板的断裂是一个极为复杂的过程,其中振动是一个不可忽略的因素,因为只要进行剪切就会有振动产生。针对滚切剪剪切钢板对钢板造成冲击引起的振动进行模态分析和理论计算,证实了振动的存在及影响,并提出了振动影响因子这一概念,并对现有的最大剪切力计算公式进行了完善。

Cutting is a very important program during the process of medium plate production, which contains length and width. Fracture of plate is a complicated process, and the vibration is an inevitable factor with the whole shearing process. In this paper, modal analysis and theoretical calculation based on the vibration caused by impact were done when the rolling-cut shear touched the plate. The existence of the vibration and impact was con- firmed, and the vibration impact factor was proposed, finally, the formula of shear force was revised.