作　　者： ; ; (等）;

机构地区： 吉林大学

出　　处： 《中国机械工程》 2000年第12期1324-1325,共2页

摘　　要： 采用基于 Updated-Lagrangian法的大变形样条有限条法 ,分析直缝焊管多道次连续成型过程的纵向薄膜应变和位移。模拟结果表明 ,变形带材的边缘是变形剧烈的部位 ,必须严格控制带材边缘纵向应变。多道次连续成型时 ,带材变形应先逐渐增大 ,然后逐渐减小 。 To improve products quality and study the strain distribution, large deformation spline finite strip method based on Updated-Lagrangian method was employed to analyze ERW pipe multiple rolls progressive forming. Conclusions could be drawn from the simulation results of longitudinal membrane strain and displacement. There was severe deformation in the edge part of the deformed strip, and the longitudinal membrane strain should be controlled strictly. When multiple rolls were progressive forming, the deformation should be increased first, and then decreased to ensure good products quality.

关 键 词： 直缝焊管 连续成型 有限条 纵向薄膜应变

领　　域： [金属学及工艺] [理学] [理学] [一般工业技术]