客机族是一组共享通用部件或子系统的、但性能或使用要求不同的相关飞机产品的集合.开发客机族可占领更多的市场份额,是民机取得商业上成功的重要策略之一.由于要考虑通用性要求,客机族总体设计中参数优化问题有别于传统的单一机型总体设计中参数优化问题.研究并提出了一种有效的客机族总体设计阶段中参数优化方法.以设计中短程客机为背景,定义了客机族的总体布局形式,开发了飞机族总体设计综合分析模型,重点讨论了如何定义飞机族总体参数优化问题中设计变量、设计约束和设计目标.应用自适应进化算法求解该客机族总体参数优化问题.计算结果表明,优化后获得的总体参数能满足各机型设计要求,且能兼顾各机型的经济性.%The airliner family is a set of airliners that uses a common sub-system or components while meeting different performance or operation requirements. The airliner family can share a larger market, which is one of the key strategies for success in business. Due to the shared demand, the optimization for conceptual design of airliner family is different from that of traditional conceptual airliner design. An effective optimization method is studied for conceptual design of the airliner family. A short/medium haul airliner family is used as an example for demonstration of the method. The configurations of the airliner family are presented. A global analysis code is modified to evaluate the conceptual design. The optimization formulation for the conceptual design is presented in detail, including design variables, design constraints, and objectives. A self-adaptive evolution algorithm is used to solve the optimization problem. The results after optimization indicate that the specific design requirements for each aircraft are satisfied, and design objectives (direct operating costs) are reasonably compromised for the airliner family.
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