The invention belongs to the field of aeroelastic mechanics, and particularly relates to an emergency method for flutter suppression in a low-speed flutter wind tunnel test. The emergency method comprises the steps that 1 an emergency system for flutter suppression is constructed, the emergency system comprises a low-speed flutter model and a skin damage mechanism, the low-speed flutter model comprises a frame section and a dimensional skin, and the skin damage mechanism is installed at a flutter sensitive part in the low-speed flutter model; and 2 when flutter occurs, the dimensional skin of the low-speed flutter model is damaged through the skin damage mechanism. According to the emergency method for flutter suppression in the low-speed flutter wind tunnel test, an emergency flutter suppression measure is provided, when flutter occurs, the skin damage mechanism is adopted to damage the dimensional skin of the low-speed flutter model, and the purpose of protecting the safety of the overall structure of the model at a low cost is achieved. The method is clear in principle and easy to implement, and can protect the model safety when other reversible flutter suppression measures are invalid.
本申请属于气动弹性力学领域,特别涉及一种低速颤振风洞试验中颤振抑制的应急方法。包括:步骤一、构建颤振抑制的应急系统,所述应急系统包括低速颤振模型以及蒙皮破坏机构,所述低速颤振模型包括框段以及维形蒙皮,所述蒙皮破坏机构安装在所述低速颤振模型内部的颤振敏感部位;步骤二、在颤振发生时,通过所述蒙皮破坏机构将所述低速颤振模型的维形蒙皮破坏。本申请的低速颤振风洞试验中颤振抑制的应急方法,提供了一种应急的颤振抑制措施,当发生颤振时,采用蒙皮破坏机构破坏低速颤振模型的维形蒙皮,实现以较小的代价保护模型整体结构的安全。本申请原理清晰,易于实现,能够在其它可逆的颤振抑制措施无效时,实现保护模型安全。
Emergency method for flutter suppression in low-speed flutter wind tunnel test
一种低速颤振风洞试验中颤振抑制的应急方法
2021-09-24
Patent
Electronic Resource
Chinese
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 |
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