基于代理模型优化的转接盘多约束参数化设计  

Parametric Design of a Rotary Adapter under Multiple Response Constraints Based on Surrogate Model Optimization

作　　者：任晨辉 张永强 罗金汉 邢博 Ren Chenhui;Zhang Yongqiang;Luo Jinhan;Xing Bo(AECC Commercial Aircraft Engine Co.LTD.,Shanghai 200241,China)

机构地区：[1]中国航发商用航空发动机有限责任公司,上海200241

出　　处：《动力学与控制学报》2024年第8期83-89,共7页Journal of Dynamics and Control

基　　金：上海市“科技创新行动计划”启明星项目(22YF1453500)。

摘　　要：通过截面尺寸参数化建立旋转转接盘有限元分析模型,以其固有频率与局部最大应力为约束条件,对转接盘进行轻量优化设计.针对优化模型设计变量多、计算成本高等特点,采用考虑空间约束条件的径向基函数代理模型拟合与全局随机优化算法相结合,获取优化设计结果.计算表明,转接盘一阶固有频率、局部最大应力拟合误差满足许用值要求,拟合模型R 2值分别为0.979与0.938.不同转速下优化解的频率与应力预报值与真实值相对偏差小于10%,绝对偏差值最大分别为35.2Hz与16.2MPa,证明所采用的优化流程可有效用于转接盘设计.Finite element analysis models were established for a rotary adapter by parameterizing the cross-section outlines.With the natural frequency and local maximum stress as constraints,lightweight optimization design of the adapter plate was carried out.Based on the amount of variables and high calculation cost of the optimization model,the radial basis function surrogate model taking in account spatial constraints was combined with global random optimization algorithm.Results show that the fitting errors of the first natural frequency and local maximum stress of the adapter meet the requirements of allowable values,and the fitting R 2 values are 0.979 and 0.938 respectively.The relative deviations between the predicted value of frequency and stress of the optimized solution and the true value at different speeds are less than 10%,and the maximum absolute deviation values are 35.2Hz and 16.2MPa,respectively.The optimization process adopted can be effectively used for the design of the adapter.

关 键 词：转接盘 参数化设计 代理模型优化 径向基函数 

分 类 号：V232.3[航空宇航科学与技术—航空宇航推进理论与工程]