CAJ | 학술논문

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.
대모φ1m대조이결구적금속각체건립료삼유삼수화모형.이계산궤실험설계방법위기출,구건대리모형급목표구동우화설계,선취영향조이부위결구수력형태적5개궤하삼수작위설계변량.동시,이대조이결구금속각체총질량급Mises응력위목표함수대조이부위결구진행료우화설계.계산결과표명,우화후적조이부위결구형식협조,조이주변구역응력분포합리,총중비초시상태감소2%;상비기여궤하척촌,가후구외경급개공직경대우화결과영향경위중요.
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 around 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.