The invention discloses a waverider transverse course stability optimization method and system, and the method comprises the steps: carrying out the optimization of an initial configuration of a cone-derived waverider through a first optimization algorithm, so as to obtain a first optimization configuration with a target lift-drag ratio; judging whether the transverse heading stability of the first optimization configuration meets a target condition or not; and if not, generating a second optimization algorithm by adding a dihedral constraint into the geometric constraint of the first optimization algorithm. According to the method, the lateral course stability of the first optimization configuration can be judged, and after the first optimization configuration does not meet the lateral course stability requirement, the bottom surface dihedral constraint is introduced into the geometric constraint of the first optimization algorithm, so that the high lift-drag ratio waverider meeting the lateral course stability requirement can be obtained; therefore, the requirement for transverse course stability is met by means of the reasonable design of the geometrical characteristics of the quasi waverider, and the heat protection problem of hypersonic flight is greatly relieved.
本发明公开了一种乘波体横航向稳定性优化方法及系统,该方法包括利用第一优化算法对锥导乘波体的初始构型进行优化,以获得具有目标升阻比的第一优化构型;判断所述第一优化构型的横航向稳定性是否满足目标条件;如果不满足,则通过向所述第一优化算法的几何约束中添加上反角约束,生成第二优化算法。该方法可以对第一优化构型的横航向稳定性进行判断,在第一优化构型不满足横航向稳定性要求后,采用在第一优化算法的几何约束中引入底面上反角约束,即可获得满足横航向稳定性要求的高升阻比乘波体,从而实现了依靠准乘波体自身几何特征的合理设计来满足横航向稳定性要求,大大缓解了高超声速飞行的防热难题。
Wave rider lateral course stability optimization method and system
一种乘波体横航向稳定性优化方法及系统
2021-06-11
Patent
Electronic Resource
Chinese
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B64C AEROPLANES , Flugzeuge / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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