本发明公开了一种暂冲式风洞主引射器压力控制方法,该控制方法采用有主引射器,还采用有相互独立的主引压力一号测量通道和主引压力二号测量通道,主引压力一号测量通道和主引压力二号测量通道分别测量主引射器管路内的主引压力,主引压力二号测量通道的前端设有持压舱;在风洞试验启动充压阶段,由主引压力一号测量通道负责主引压力反馈值测量,当主引压力进入给定值误差带形成稳态后,切换至主引压力二号测量通道负责主引压力反馈值测量。该方法的使用不会延长风洞启动充压时间,在主引压力稳态调节时,能减小噪声对主引压力测量的影响,提高主引压力的控制精度,同时两路测量通道互为监测,也能提高主引压力测量系统的安全性。
The invention discloses a method for controlling the pressure of a main ejector of a temporary impact type wind tunnel, and the method employs the main ejector, and also employs a first main ejector pressure measurement channel and a second main ejector pressure measurement channel which are independent from each other. The first main injection pressure measuring channel and the second main injection pressure measuring channel are used for measuring the main injection pressure in a main injector pipeline, and a pressure holding cabin is arranged at the front end of the second main injection pressure measuring channel. In the starting pressurizing stage of the wind tunnel test, the first main lead pressure measuring channel is responsible for main lead pressure feedback value measurement, and when the main lead pressure enters a given value error band and forms a steady state, the second main lead pressure measuring channel is switched to be responsible for main lead pressure feedback value measurement. When the method is used, the starting pressurizing time of the wind tunnel cannot be prolonged, the influence of noise on main lead pressure measurement can be reduced and the control precision of the main lead pressure can be improved when the main lead pressure is adjusted in a steady state, and meanwhile, the safety of a main lead pressure measurement system can also be improved as the two measurement channels monitor each other.
一种暂冲式风洞主引射器压力控制方法
2024-04-16
Patent
Elektronische Ressource
Chinesisch
IPC: | G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / 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 / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |