双层管液压胀合的原理及力学分析.pdfVIP

Journal of Mechan cal Strength 2006, 28( 1) : 099~ 103 X PRINCIPLE AND MECHANICS ANALYSIS FOR BIMETALLIC TUBE FORMED BY HYDRAULIC EXPANSION XX 1 1 2 1 3 ( 1. 浙江大学 化工机械研究所, 杭州310027) ( 2. 大庆石油管理局 热力公司, 大庆163253) ( 3. ARC 压力容器有限公司, 上海201600) LIU FuJun 1 ZHENG JinYang 1 GUO XiaoLian2 ZHU GuoHui 1 XU MingZe 3 (1. Institute of Chemical Machinery and Process Equipment, Zhej iang University, angzhou 310027, China) (2. eat Supply Corporation fo Daqing PetroleumAdministration, Daqing 163253, China) ( 3. ARC Pressure Vessel Corporation, Shanghai 201600, China) , , , , * p p i TE832 TH 123 . 4 Abstract The hydro- expand ng pr nc ple of b metall c tube w as expounded n deta l. Accord ng to fundamental assumpt ons, the forc ng state of b metall c tube was analyzed dur ng the process of hydro- form ng. Based on elast c ty- plast c ty theory, the stress and stra n for nner and outer tubes of b metall c tube were d scussed . By us ng the relat on of deformed compat b l ty of hoop stra n , vary ng range of hydro- expand ng pressures and the calculat ng formulas of hydro- expand ng pressure related to res dual contact pressure are de- r ved . Key words B metall c tube; Hydro- expand ng pressure; Stress analys s; Hoop stra n Corresponding author: LI UFuJun, E-mail: ce101liu@zju. edu. cn, Fax: + 86-571 Th s project supported by the Spec al zed Research Fund for the Doctoral Program of H gher Educat on( No . 200