The invention provides an undercarriage ejection process main force transmission structure fatigue test device and test method. The device comprises an ejection rod, a rotating sleeve, an upper torsion arm, a lower torsion arm, an ejection load loading mechanism, a traction load loading mechanism and a main force transmission device fixing mechanism. The test method mainly comprises steps of (1) mounting and fixing a test piece, (2) mounting and fixing an ejection loading device mechanism, (3) installing and fixing the traction loading device mechanism, (4) performing cyclic loading test, and(5) testing the residual strength under the working condition of the maximum catapulting force. The device is advantaged in that the fatigue life of a main force transmission structure is measured, ahydraulic actuating cylinder is adopted for loading, so the load is stable, and continuity is good; arrangement and installation of the test device can accurately simulate the real working condition of the main force transmission structure, construction and installation are simple, a test scale is reduced, and test cost is saved.
本发明提供了一种起落架弹射过程主传力结构疲劳试验装置及试验方法,装置包括弹射杆、旋转套筒、上扭力臂、下扭力臂、弹射载荷加载机构、牵制载荷加载机构和主传力装置固定机构;试验方法主要包括以下步骤:(1)试验件的安装固定;(2)弹射加载装置机构的安装固定;(3)牵制加载装置机构的安装固定;(4)循环加载试验;(5)最大弹射力工况的剩余强度试验。本发明测定了主传力结构的疲劳寿命;采用液压作动缸加载,载荷平稳,连续性好;试验装置的布置和安装可以准确模拟主传力结构真实工况,同时施工安装简单,降低了试验规模,节约试验成本。
Undercarriage ejection main force transmission structure fatigue test device and test method thereof
一种起落架弹射主传力结构疲劳试验装置及其试验方法
2020-05-05
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 |
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