基于运营要求的民用飞机概念设计参数优化

可靠性、经济性和环保性是民用飞机设计必须考虑的运营要求,通过系统研究签派可靠度估算模型、全寿命周期成本和碳排放量模型,构成多目标函数。同时,根据民用飞机实际运营中需要满足的性能要求,建立约束限制条件,最终形成多目标优化模型,然后采用遗传算法实现对优化模型的寻优计算。以A320机型为例,针对不同设计目标进行优化计算。优化结果表明遗传算法的优化方法可行,可为民用飞机概念设计参数的选取提供参考。

Optimization of Conceptual Design Parameters of Civil Aircraft Based on Operational Requirements

Reliability, economy and environmental protection are the operational requirements of civil aircraft design. Through the systematic study on the influence factors of dispatch reliability, total life cycle cost and carbon emission model, the total life cycle cost,carbon emission model and dispatch reliability are constituted into multi-objective optimization function. Meanwhile, according to the performance requirements of the actual operation, the constraint equation is established and multi-objective optimization model is established. Then, the genetic algorithm is used to achieve the intelligent optimization calculation of the optimization model.Taking A320 typical data as an example, optimal calculation is carried out for different design objectives. Results show that the optimization method is feasible, and it can provide reference for the selection of the aircraft conceptual design parameters.