基于Abaqus-Isight的飞机舱门密封件的联合优化设计

Joint optimization design of aircraft door seals based on Abaqus-Isight

为了适应飞机舱门密封件研制周期较短以及正向设计的发展趋势,基于Abaqus-Isight软件对飞机舱门密封件进行仿真分析和优化设计,同时校准了材料参数,提出了两种对飞机舱门密封件的优化设计方法,通过对比得到更优的密封件结构。通过试验得到橡胶与织物的材料参数,基于Abaqus-Isight对材料参数进行校核,通过试验得到的压缩试验曲线对材料参数进行修正,得到与成品试验拟合度更高的材料参数;基于Abaqus-Isight对飞机舱门密封件进行DOE正交试验优化设计,将产品结构参数作为变量,压缩力、接触压力、摩擦损耗能作为优化目标,可以得到局部最优结构;将DOE正交试验结果拟合得到近似模型,通过Isight的近似模型算法得到全局最优结构,综合评估采用近似模型算法能够得到更为优异的结果。

In order to adapt to the short development cycle of aircraft door seals and the development trend of forward design,this paper simulates,analyzes and optimizes the aircraft door seal based on Abaqus sight software,calibrates the material parameters,puts forward two optimization design methods for aircraft door seal,and obtains a better seal structure through comparison.To better seal structure,the material parameters of rubber and fabric were obtained by experiments,the material parameters were checked based on Abaqus-Isight,and the material parameters were corrected through the compression test curve obtained by the test,so as to get the material parameters with higher fitting degree with the finished product test;Based on Abaqus-Isight pairs of aircraft,the optimization design of cabin door seals was carried out by DOE orthogonal test,with product structural parameters as variables,compression force,contact pressure and friction loss energy as optimization targets,and the local optimal structure could be obtained.The approximate model was obtained by fitting the results of DOE orthogonal test.The global optimal structure can be obtained by using the approximate model algorithm,and better results can be obtained by using the approximate model algorithm for comprehensive evaluation.