The invention discloses an unmanned helicopter flexible beam bending fatigue test load monitoring method comprising the following steps: pasting strain gauges on a test piece and a test piece fixing joint, and checking the effectiveness of the pasting of the strain gauges; calibrating all specified sections of the test piece and the test piece fixing joint; carrying out load debugging before the test so as to obtain a load value of the monitoring section meeting the test task requirement; carrying out a bending fatigue test of the flexible beam, carrying out the fatigue test in a strain monitoring load mode in the test process, and monitoring the bending load of the flexible beam; after all the strain gauges on the test piece are damaged, the test load is lowered and upgraded to fix the strain output load value and the flapping force on the joint to implement test monitoring. According to the technical scheme, the problems that the test period is prolonged, the test efficiency is low, the labor cost is increased, the test resources are wasted, and the test task is difficult to complete in the specified time are solved.

    本发明公开一种无人直升机柔性梁弯曲疲劳试验载荷监控方法,包括:对试验件和试验件固定接头粘贴应变片,检查应变片粘贴的有效性;对试验件和试验件固定接头的所有指定剖面进行标定;进行试验前的载荷调试,以获取满足试验任务要求的监控剖面的载荷值;执行柔性梁弯曲疲劳试验,在试验过程中采用应变监控载荷方式进行疲劳试验,并对柔性梁弯曲载荷进行监控;在试验件上的所有应变片损坏后,试验载荷下降和升级以固定接头上的应变输出载荷值和挥舞力来实施试验监控。本发明技术方案解决了延长试验周期、试验效率低下、增加人力成本、浪费试验资源,以及试验难以在规定的时间内完成试验任务等问题。


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    Title :

    Unmanned helicopter flexible beam bending fatigue test load monitoring method


    Additional title:

    一种无人直升机柔性梁弯曲疲劳试验载荷监控方法


    Contributors:
    SONG YUN (author) / HE PAN (author) / NIE HAIMIN (author) / SUN YUNWEI (author)

    Publication date :

    2025-02-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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