摘要
在一定气压差和封严面的机械表面形态下,W形封严环的封严效果和其与法兰之间的封严面积密切相关,合理选择封严环结构参数并提升封严环与法兰之间的封严面积,可以达到提升封严性的目的。使用有限元分析软件ABAQUS模拟在预紧工况下,封严环主要结构参数、预压紧量对W形封严环与法兰之间封严面积的影响规律。结果表明:选取较大的外半径,预压紧量和壁厚可使零件与法兰封严面积增大,壁厚与外半径对封严环与法兰接触面积影响较大,在设计过程中应综合考虑封严效果和刚度弹性,合理选择壁厚和外半径的大小。
In a certain pressure difference and the seal surface of the mechanical surface hologymorp,the W-shaped seal ring sealing effect is closely related with the flange seal area.Reasonable select the seal ring structure parameters and increase the area between seal ring and flange can achieve the purpose of improving seal effect.By using the finite element analysis software ABAQUS the influence of main structural parameters and pre-tightening amount on the sealing area of W-ring and flange are simulated.Results show that the outer radius,pre-tightening amount and wall thickness can influence the sealing area between the parts and flange.The wall thickness and the outer radius of the seal ring are of greater influence for the contact area between the seal ring and flange.In the design process the seal effect and stiffness elasticity should be considered and the wall thickness and outer radius size should be reasonable selected.
作者
陈京名
王云
李齐飞
力宁
Chen Jingming;Wang Yun;Li Qifei;Li Ning(School of Aircraft Engineering,Nanchang Hangkong University,Nanchang 330063,China;Hunan Aviation Powerplant Research Institute,Aero Engine Corporation of China,Zhuzhou 412002,China)
出处
《航空工程进展》
CSCD
2018年第4期617-622,共6页
Advances in Aeronautical Science and Engineering
