4) The two-level optimization method based on the surrogate model is applied to aerodynamic design optimization of aircraft family. A regional aircraft family is used as an example to illustrate aerodynamic design optimization of aircraft family.
4)针对飞机族的气动优化设计问题,以一支线客机族机翼气动外形设计优化问题为例,应用基于代理模型的二级优化方法,研究了一种飞机族气动外形的优化方法,为飞机族气动外形设计提供了一种有效的优化设计方法。
参考来源 - 基于模块化通用平台策略的飞机族设计优化方法·2,447,543篇论文数据，部分数据来源于NoteExpress
空客公司称260架飞机订单涉及A320家族的A319, A320以及A321机型。
Airbus said that the order for 260 planes from its A320 "family" of aircraft would include its A319, A320 and A321 models.
慢旅族们放弃搭乘飞机旅行，也不会选择去远途的地方做短暂停留。
Slow travelers eschew plane travel and especially short breaks in distant places.
使用扩展线性化方法将飞机方程简化为工作点族上具有时变特征的线性系统形式；
The 6 freedom nonlinear dynamical equations of the aircraft are predigested at static operating points by extended linearization which still possess nonlinear characters.
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