The invention discloses a deformation aircraft wind tunnel virtual flight test control parameter similarity transformation method, which comprises the steps of determining a wind tunnel virtual flight test flow similarity criterion, and selecting parameters which need to meet similarity between the test and real flight; determining the scaling multiple of the wind tunnel test model, and designing the structural quality parameters of the model according to the similar proportional relation; calculating a similar proportional relation between each motion parameter of the wind tunnel virtual flight test and real flight; performing similarity transformation on an open-loop attitude instruction and a deformation mechanism instruction of the virtual flight test; performing similarity transformation on parameters of an execution mechanism of the test model; and carrying out similarity transformation on the scaling test closed-loop control law. According to the method, a complete control system parameter similarity criterion is established for the first time, the real flight process considering closed-loop control is simulated vividly in a wind tunnel virtual flight test environment by applying the technology, the stability of the control system can be verified on the ground, and the flight performance can be analyzed and evaluated.
本发明公开的变形飞行器风洞虚拟飞行试验控制参数相似变换方法,包括确定风洞虚拟飞行试验流动相似准则,选取试验与真实飞行需要满足相似性的参数;确定风洞试验模型缩比倍数,按照相似比例关系设计模型的结构质量参数;计算风洞虚拟飞行试验各项运动参数与真实飞行的相似比例关系;对虚拟飞行试验的开环姿态指令及变形机构指令进行相似变换;对试验模型执行机构参数进行相似变换;对缩比试验闭环控制律进行相似变换。本发明首次建立了完整的控制系统参数相似准则,通过应用本发明技术,实现在风洞虚拟飞行试验环境下逼真模拟考虑闭环控制的真实飞行过程,可在地面验证控制系统稳定性、分析评估飞行性能。
Similarity transformation method for control parameters of wind tunnel virtual flight test of deformable aircraft
变形飞行器风洞虚拟飞行试验控制参数相似变换方法
2024-03-19
Patent
Elektronische Ressource
Chinesisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / 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 / G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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