The invention provides a rigidity adjusting device of a wing low-speed flutter wind tunnel test model, which belongs to the field of wing flutter model design. The device is mounted at a cut-off position of a wing main beam for simulating wing rigidity, a left connecting plate is connected with a beam at the left end of the cut-off position, and a right connecting plate is connected with a beam atthe right end of the cut-off position. Dovetail grooves are formed in corresponding positions of 0 degree, 90 degrees, 180 degrees and 270 degrees near the outer circumferential lines of the left connecting plate and the right connecting plate at intervals of 90 degrees and are used for mounting four variable parameter beams, and two opposite variable parameter beams form a group and are used forrespectively simulating the out-of-plane flexural rigidity and the in-plane flexural rigidity of the wing; the rigidity parameter range of the wing flutter model can be adjusted by adjusting the section size of the variable parameter beam. The device can be used for researching the influence of the change of the in-plane and out-plane flexural rigidity of the wing on the dynamic strength characteristic of the wing in a wind tunnel test.
本发明提供公开了一种机翼低速颤振风洞试验模型的刚度调整装置,属于机翼颤振模型设计领域,本发明的装置安装在模拟机翼刚度的机翼主梁的截断处,左连接板与截断处左端的梁连接,右连接板与截断处右端的梁连接,左、右连接板外圆周线附近按90°间隔,分别为0°、90°、180°、270°对应位置开燕尾槽,用来安装四个变参数梁,两个相对的变参数梁为一组,分别模拟机翼的面外抗弯刚度和面内抗弯刚度,通过调整变参数梁的截面尺寸就可以调整机翼颤振模型的刚度参数范围。本发明的装置可用于风洞试验中研究机翼面内、面外抗弯刚度的变化对机翼动强度特性的影响。
Rigidity adjusting device of wing low-speed flutter wind tunnel test model
一种机翼低速颤振风洞试验模型的刚度调整装置
2020-12-18
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 / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile |
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