CAJ | 학술논문

开孔耐压球壳是集体逃逸舱的主要承压结构，其强度和稳定性直接关系到逃生人员的生命安全。本文推导了计算静水压力下开孔耐压球壳应力的解析单元法( AEM)，该方法与有限元法计算结果吻合。对开孔耐压球壳极限强度进行有限元分析，用响应面法( RSM )建立非线性稳定性近似公式。基于强度和稳定性计算公式，联合采用多岛遗传算法( MIGA)和Hook-Jeeves法进行优化设计，得到满足强度和稳定性要求重量最轻的设计方案。
개공내압구각시집체도일창적주요승압결구，기강도화은정성직접관계도도생인원적생명안전。본문추도료계산정수압력하개공내압구각응력적해석단원법( AEM)，해방법여유한원법계산결과문합。대개공내압구각겁한강도진행유한원분석，용향응면법( RSM )건립비선성은정성근사공식。기우강도화은정성계산공식，연합채용다도유전산법( MIGA)화Hook-Jeeves법진행우화설계，득도만족강도화은정성요구중량최경적설계방안。
As the pressure spherical shell with openings is bearing structure of the collective escape capsule, its strength and stability is of great importance to the safety of crew. Analytic element method ( AEM) is proposed to calculate stress of pressure spherical shell under static pressure . Results obtained by AEM show good agreement with FEM’ s results. The ultimate strength of pressure spherical shell is also analyzed by FEM method, and response surface method ( RSM) is used to establish a approximation formula of nonlinear buckling pressure. Based on AEM and RSM, muti-island genetic algorithm ( MIGA) and hook-jeeves method are adopted in subsequent optimal design to search a design of minimum weight with sufficient strength and stability.