矿用自卸车车架有限元点质量分析方法

摘要

The loading method of point mass combining with acceleration was put forward infinite element analysis of frame and the loading process was illuminated.Through frame finite element analysis method of point moss combining with acceleration,the maximum stress & deformation position and safety factor of a mining truck frame was determined under 4operating conditions of bend,torsion,emergency brake and sharp turn.The analysis results show this frame meets requirements for strength and deformation under above 4 operating conditions.Compared with traditional loading method,the loading method of point mass combining with acceleration just needs to determine the coordinates and acting surfaces of each point mass as well as the number and direction and value of acceleration and it has advantages of lesser artificial calculation and easier operation.%提出在车架有限元分析中利用点质量结合加速度的载荷处理方法,并阐明其处理过程.通过点质量结合加速度的车架有限元分析方法,确定某矿用自卸车车架在弯曲、扭转、紧急制动和急转弯4种工况下最大应力、变形的位置以及安全系数,分析结果表明该车架在各种工况下均满足强度和变形要求.与传统的载荷处理方法相比,点质量结合加速度的载荷处理方法只需要确定各点质量的坐标、作用面及加速度的个数、方向和数值,具有人工计算量小和操作简单的优势.