摘要
对某φ1m带吊耳结构的金属壳体建立了三维参数化模型。以计算机实验设计方法为基础,构建代理模型及目标驱动优化设计,选取影响吊耳部位结构受力形态的5个几何参数作为设计变量。同时,以带吊耳结构金属壳体总质量及Mises应力为目标函数对吊耳部位结构进行了优化设计。计算结果表明,优化后的吊耳部位结构形式协调,吊耳周边区域应力分布合理,总重比初始状态减小2%;相比其余几何尺寸,加厚区外径及开孔直径对优化结果影响更为重要。
Numerical were used to analyze the lmental case with lifting lug.Based on the CDOE,5 geometrical parameters of the lifting lug were defined design point by establishing model and GDO. Meanwhile, target function was introduced which contained weight and Mises-stress arround the lifting lug of the metal case for optimization design. The results reveal that the structure of the lifting lug was correspond, and stress distributing around the lifting lug was reasonable ,the weight of structure was decreased by 2%. By contrasting other geometrical parameters, the diameter of case and diameter of hole have significant impact on the optimization design.
出处
《强度与环境》
2015年第5期35-43,共9页
Structure & Environment Engineering
关键词
吊耳结构
金属壳体
优化设计
lifting lug structure
metal case
optimization design.
