双圆锥台壳体液压胀形的防皱措施  

Steps of anti-wrinkle for double frustum shell in the process of hydrobulging

作　　者：詹艳然[1] 张哲武[1] 王仲仁[2] 

机构地区：[1]福州大学机械工程系,福州350002 [2]哈尔滨工业大学,哈尔滨150001

出　　处：《塑性工程学报》2003年第2期22-24,共3页Journal of Plasticity Engineering

基　　金：福州大学科技发展基金(XKJ(QD)-0125)

摘　　要：等边双圆锥台壳体在内压的作用下,赤道环焊缝处易产生失稳起皱,且胀形后所得容器圆度较差。针对这一问题,对其胀形过程进行了有限元数值模拟,并通过改变圆锥台的初始形状,来保证容器的圆度和避免赤道处的失稳起皱。Under internal pressure, equilateral frustum shell tends to wrinkle at the equator, and the circular degree of the obtained vessel is poor. Pointing to this problem, a numerical simulation was firstly carried out, and then some measures was taken to prevent the equator from wrinkling by slightly changing the shape of the frustum shell, as a result, the bulged vessel became more round.

关 键 词：双圆锥台壳体 液压胀形 有限元 数值模拟 失稳起皱 

分 类 号：TG394[金属学及工艺—金属压力加工] TB115[理学—数学]