【摘要】 用数值方法研究了圆柱形筒体间环缝及圆柱形筒体与法兰对接后环缝引起的焊接变形，并与试验进行比较，研究结果表明：圆柱形壳体间的对接环缝对法兰平面倾斜没有明显的影响；使圆柱形壳体的径向产生变形；圆柱形壳体与法兰对接环形焊缝将引起壳体的径向变形及法兰平面度的变化；采用纵向收塑力对圆柱形壳体间对接和圆柱形壳体与法兰对接两种环缝进行有限元分析是可行的。更多还原

【Abstract】 Welding deformations due to circumferential welds at the joint between the two cylindrical shells.the cylindrical shell and the flange are studied by numerical analysis,and computed values are compared to values obtained from the experiment. The results show that the effect of the circumferential weld between the two cylindrical shells on the inclination of the flange’s plane is not obvious,but it induces the radial deformation. The changes of the radial deformation and the flange’s planeness are induced by the circumferential weld at the joint between the cylindrical shell and the flange ;The FEM analysises for the circumferential welds at the joint between the two cylindrical shells.the cylindrical shell and the flange are feasible.更多还原