The invention provides an airplane main landing gear emergency breaking test bed and a test method. The test method comprises the following steps: arranging a plurality of breaking pins on the main landing gear according to a main landing gear mounting structure and emergency breaking requirements; loading a load on a wheel shaft of the main landing gear, wherein the direction and the size of the loaded load are changed according to actual working conditions; when the loaded load reaches the limit load Fu, keeping the load for a certain time and keeping no breaking; continuously loading the load to break the breaking pins, recording the breaking load, and obtaining the breaking sequence of the breaking pins; and comparing the obtained breaking sequence and breaking load of each breaking pin with the preset breaking sequence and breaking load, if the obtained breaking sequence and breaking load are consistent with the preset breaking sequence and breaking load, proving that each breaking pin is reasonably designed, and if the obtained breaking sequence and breaking load are not consistent with the preset breaking sequence and breaking load, redesigning each breaking pin and carrying out experimental verification. According to the invention, the emergency breaking sequence and breaking strength of the full-size aircraft main landing gear under different loading conditions can be tested, so that the reliability of the emergency breaking pin of the main landing gear is verified; in addition, the test bed adopts a modular design.

    本发明提供一种飞机主起落架应急断离试验台及试验方法。所述试验方法包括依据主起落架安装结构及应急断离要求,在其上布置多个断离销;对主起落架的轮轴加载载荷,且加载的载荷方向和大小依据实际工况进行变化;当加载的载荷达到极限载荷Fu时,保持一定时间且不断离;继续加载载荷使断离销断离,记录断离载荷,并获得各断离销断离顺序;将获得的各断离销的断离顺序、断离载荷与预先设定的断离顺序和断离载荷比较,如一致,则证明各断离销设计合理,如不一致,则重新设计各断离销并进行试验验证。本发明能测试全尺寸飞机主起落架在不同加载工况下的应急断离顺序和断离强度,从而验证主起落架应急断离销的可靠性;另外,试验台采用模块化设计。


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    Titel :

    Aircraft main landing gear emergency breaking test bed and test method


    Weitere Titelangaben:

    一种飞机主起落架应急断离试验台及试验方法


    Beteiligte:
    FU LIANG (Autor:in) / FENG GUANG (Autor:in) / SHE SHIQIANG (Autor:in) / LIU PANGLUN (Autor:in) / LOU RUI (Autor:in) / HUANG HAIQING (Autor:in) / YANG LE (Autor:in) / YU HAOWEN (Autor:in) / YE HUI (Autor:in)

    Erscheinungsdatum :

    2021-12-17


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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



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