The invention belongs to the field of aircraft ground tests, and relates to an aircraft landing gear emergency disconnection dynamic test device which comprises a test bed, a lifting and releasing mechanism, a hanging basket, a follow-up belt rotating device, a test piece and a ground load measuring device. When an emergency breaking dynamic test is carried out, the lifting and releasing mechanism is controlled to lift the test piece to a set height, then the lifting and releasing mechanism is controlled to put down the hanging basket, the hanging basket falls along with the test piece, and the follow-up belt rotating device controls the airplane wheel to rotate in the falling process so as to simulate the real falling condition of the undercarriage. Finally, the test piece falls on the ground load measuring device, at the moment, the breaking load of the test piece is measured through a breaking load measuring device sensor, the load of the test piece is measured through a sensing element on the ground load measuring device, and the overload condition of the airplane during emergency landing is simulated. And the breaking load and the breaking sequence of the emergency breaking shaft pin of the undercarriage and the movement track of the undercarriage system after breaking can be studied.
本申请属于飞机地面试验领域,为一种飞机起落架应急断离动态试验装置,包括试验台架、提升释放机构、吊篮、随动带转装置、试验件和地面载荷测量装置;在进行应急断离动态试验时,先控制提升释放机构将试验件吊起至设定的高度,而后控制提升释放机构将吊篮放下,吊篮跟随试验件一块下落,在下落过程中随动带转装置控制机轮转动,以模拟起落架的真实下落情况,最后试验件落到地面载荷测量装置上,此时通过断离载荷测量装置传感器测量试验件的断离载荷,通过地面载荷测量装置上的感应元件测量试验件的载荷,通过模拟飞机应急着陆时的超载情况,能够研究起落架应急断离轴销的断离载荷、断离顺序及起落架系统断离后的运动轨迹等。
Aircraft landing gear emergency breaking dynamic test device
一种飞机起落架应急断离动态试验装置
2023-07-18
Patent
Electronic Resource
Chinese
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 |
Aircraft main landing gear emergency breaking test bed and test method
European Patent Office | 2021
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