The invention discloses a load monitoring device and method for a buffeting test of an airplane key structure. The device comprises an airplane vertical fin test piece vertically arranged on a test bed, a load transmission structure arranged at the bottom of the airplane vertical fin test piece, and a load monitoring structure connected to the load transmission structure. The load transmission structure comprises a mounting seat, a fixed seat and a connecting rod; the method comprises the following steps: 1, calibrating a load range; 2, mounting a load monitoring device; 3, acquiring and storing a strain limit range; and 4, monitoring the buffeting test of the airplane vertical fin test piece. According to the invention, the load transmission structure is utilized to transmit the rotation load borne by the airplane vertical fin test piece to the connecting rod, and the strain gauge arranged on the connecting rod is utilized to obtain the strain range of the connecting rod in the calibrated load range. And comparing the strain value obtained by the strain gauge in the subsequent buffeting test with the calibrated strain range, and judging whether the test load in the buffeting test is normally loaded or not.
本发明公开了一种飞机关键结构抖振试验的载荷监测装置及方法,该装置包括竖向设置在试验台的飞机垂尾试验件、设置在飞机垂尾试验件底部的载荷传动结构、以及连接在所述载荷传动结构上的载荷监测结构;所述载荷传动结构包括安装座、固定座、以及连接杆;该方法包括:一、标定载荷范围;二、安装载荷监测装置;三、获取并存储应变极限范围;四、监测飞机垂尾试验件的抖振试验。本发明利用载荷传动结构,可将所述飞机垂尾试验件受到的转动载荷传递到所述连接杆上,利用设置在所述连接杆上的应变片,得到在标定的载荷范围下所述连接杆的应变范围,后续抖振试验中应变片得到的应变值和标定的应变范围进行比较,判断抖振试验中试验载荷是否正常加载。
Load monitoring device and method for buffeting test of airplane key structure
一种飞机关键结构抖振试验的载荷监测装置及方法
2022-07-29
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 / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES |
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