基于响应面法的双楔角环垫螺栓法兰接头多目标优化研究  

Research on Multi-objective Optimization of the Bolt Flange Joint with Double Wedge Angle Ring Gasket Based on Response Surface Method

作　　者：卢军 陈明 彭泽军 陆晓峰[2] 程可[2] 朱晓磊[2] LU Jun;CHEN Ming;PENG Ze-jun;LU Xiao-feng;CHENG Ke;ZHU Xiao-lei(Wuhan Boiler Pressure Vessel Inspection Institute,Wuhan 430040,China;School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 210000,China)

机构地区：[1]武汉市锅炉压力容器检验研究所,湖北武汉430040 [2]南京工业大学机械与动力工程学院,江苏南京210000

出　　处：《压力容器》2018年第8期24-32,共9页Pressure Vessel Technology

基　　金：国家自然科学基金项目(11772147);江苏省六大人才高峰项目(KTHY-021);江苏省高校自然科学基金面上项目(16KJB130003)

摘　　要：双楔角环垫螺栓法兰接头作为一种新型自紧式密封结构,不仅密封性能稳定可靠,而且法兰结构紧凑、重量更小,可以节省大量材料。将有限元法和最优化方法结合起来,可以很好地实现双楔角环垫螺栓法兰接头的多目标优化设计。采用正交试验设计和响应面法来确定法兰结构参数的几何尺寸组合,利用大型有限元分析软件Abaqus对法兰不同结构参数进行建模计算,并拟合响应面模型,然后通过MATLAB优化设计方法,得到法兰最优尺寸参数。计算结果表明,优化后的双楔角环垫主面最大接触压力增加26.5%,双楔角环垫从面最大接触压力增加11.2%,法兰重量减轻31%。The bolt flange joint with double wedge angle ring gasket,as a new self-tightening seal structure,not only has stable and reliable sealing performance,but also features compact flange structure and smaller flange weight,thus can save a lot of material.By combination of the finite element analysis method with the optimization method,the multi-objective optimization design of the bolt flange joint with double wedge angle ring gasket can be well achieved.Using the orthogonal experimental design and response surface method to determine the geometric size combination of flange structural parameters,using the large finite element analysis software Abaqus to perform modeling calculations for the flange with different structural parameters,and by fitting the response surface model,and then by the MATLAB optimization design method,the flange optimal size parameters were obtained.The calculation results show that the maximum contact pressure on the male surface of double wedge angle ring gasket after optimization was increased by 26.5%,the maximum contact pressure on the female surface of the double wedge angle ring gasket after optimization was increased by 11.2%,and the weight of the flange was reduced by 31%.

关 键 词：双楔角环垫 响应面法 密封接触压力 法兰轻量化 多目标优化 

分 类 号：TH49[机械工程—机械制造及自动化] TQ055.8[化学工程]