螺栓预紧力对GIS壳体法兰强度的研究  

Research on bolt pretension force to GIS shell flange intensity

作　　者：张小娟[1] 李继光[1] 王红卫[1] 

机构地区：[1]郑州轻工业学院机电工程学院,河南郑州450002

出　　处：《郑州轻工业学院学报（自然科学版）》2010年第2期47-50,共4页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：河南省自然科学基金项目(0511014300)

摘　　要：对承受预紧力和工作拉力双重作用的紧螺栓联接,计入螺纹力矩的影响,分析了螺栓的预紧强度.应用预紧力单元法PREST179,建立了预紧力单元,模拟了螺栓联接对GIS壳体法兰的强度影响.当内压从0.1MPa上升到0.6MPa时,法兰与螺栓联接附近的应力由5 MPa上升到20 MPa.实验结果与理论值、模拟值比较吻合.For bolt link supporting pretension force and tension, the influence of screw threads moment was counted and bolt＇s pretension intensity was analysed. Pretension element PREST179 was applied to pretension element and the influence of bolt link to GIS shell flang intensity was simulated. When internal press rises from 0.1 MPa to 0.6 MPa, stress of flang and bolt link of neighbouring rises from 5 MPa to 20 MPa. The result of theory and imitation is identical to the test.

关 键 词：GIS壳体法兰 预紧力单元 应力分布 

分 类 号：TB115[理学—数学]