CAJ | 학술논문

探讨了一种新的设计指标最优分配方法--协同分配法,用于处理飞机顶层设计中的大规模设计指标最优分配问题.分析了飞机顶层设计中的设计指标最优分配特征,据此给出了协同法的原理并建立了数学模型.协同法按设计指标分配关系将最优分配问题分解为主系统优化和子系统优化,主优化对子系统设计指标进行最优分配,子优化以最小化分配设计指标值与期望设计指标值之间的差异为目标,进行子系统最优设计,或对底层元件(如飞机翼梁、翼肋和翼盒等)进行设计指标最优分配,并把最优解信息反馈给主优化.主优化通过子优化最优解信息构成的一致性约束协调分配量,提高系统整体性能,并重新给出分配方案.主系统与子系统反复协调,直到得到设计指标最优分配方案.两层可靠度指标分配算例初步验证了本文方法的正确性与可行性,三层可靠度指标分配算例证明了本文方法的有效性.最后,以重量指标分配为例,简要叙述了针对飞机顶层设计中设计指标协同分配的数学模型和求解思路.
탐토료일충신적설계지표최우분배방법--협동분배법,용우처리비궤정층설계중적대규모설계지표최우분배문제.분석료비궤정층설계중적설계지표최우분배특정,거차급출료협동법적원리병건립료수학모형.협동법안설계지표분배관계장최우분배문제분해위주계통우화화자계통우화,주우화대자계통설계지표진행최우분배,자우화이최소화분배설계지표치여기망설계지표치지간적차이위목표,진행자계통최우설계,혹대저층원건(여비궤익량、익륵화익합등)진행설계지표최우분배,병파최우해신식반궤급주우화.주우화통과자우화최우해신식구성적일치성약속협조분배량,제고계통정체성능,병중신급출분배방안.주계통여자계통반복협조,직도득도설계지표최우분배방안.량층가고도지표분배산례초보험증료본문방법적정학성여가행성,삼층가고도지표분배산예증명료본문방법적유효성.최후,이중량지표분배위례,간요서술료침대비궤정층설계중설계지표협동분배적수학모형화구해사로.
A new method,Collaborative Allocation (CA),is proposed to solve the large-scale optimum allocation problem in aircraft conceptual design.According to the characteristics of optimum allocation in aircraft conceptual design.The principle and mathematical model of CA are established.The optimum allocation problem is decomposed into one main optimization problem and several sub-optimization problems.A group of design requirements for subsystems are provided by the main system respectively,and the subsystems execute their own optimizations or further provide the detailed design requirements to the bottom components of aircraft,such as spars,ribs and skins,etc.The subsystems minimize the discrepancy between their own local variables and the corresponding allocated values,and then return the optimization results to main optimization.The main optimization is performed to reallocate the design requirements for improving the integration performance and progressing toward the compatibilities among subsystems.CA provides the general optimum allocation architecture and is easy to be carried out.Furthermore,the concurrent computation can also be realized.Two examples of optimum reliability allocation are used to describe the implementation procedure of CA for two-level allocation and three-level allocation respectively,and to validate preliminarily its correctness and effectiveness.It is shown that the developed method can be successfully used in optimum allocation of design requirements.Then taking weight requirement allocation as example,the mathematical model and solution procedure for collaborative allocation of design requirements in aircraft conceptual design are briefly depicted.