The present invention relates to a landing gear support type pneumatic suspension apparatus for a ground vibration test of an aircraft, capable of maintaining the very low frequency number of an aircraft rigid body mode as an aircraft is separated from the ground in order to prevent distortion of an elastic mode of the airplane fuselage in a ground vibration test. According to the present invention, the landing gear support type pneumatic suspension apparatus for a ground vibration test of an aircraft comprises: a pair of bases (11) which are spaced from each other and are installed on the ground, wherein one end is hinge-connected to each other and the other end can be combined; a housing (21) arranged in the upper part of each base (11); a pneumatic spring (23) which is installed between the base (11) and the housing (21), and lifts the housing (21) from the base (11) according to whether air is supplied from an outside; a support plate (24) which is arranged between the bases (11) separated from each other and is fixed to the housing (21) installed on each base (11), and on which a wheel (W) of an aircraft is located; a roller guide (22) having a convex curved surface in a direction perpendicular to the lifting direction of the housing (21) on the outer lateral surface of the housing (21); and an auxiliary spring unit (30) including an auxiliary spring (35) for elastically supporting the roller guide (22) in the direction perpendicular to the expansion direction of the pneumatic spring (23) in order to lower natural frequency of the pneumatic spring (23).


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    Title :

    LANDING GEAR SUPPORT TYPE AIR SUSPENSION APPARATUS FOR GROUND VIBRATION TEST OF AIRPLANE


    Contributors:
    BYUN KWAN HWA (author) / KWON HYUK JUN (author) / KIM SI MIN (author)

    Publication date :

    2015-09-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    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 / F16F SPRINGS , Federn / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen



    NASA Landing Gear Test Airplane

    J. F. Carter / C. J. Nagy | NTIS | 1995


    Airplane landing gear

    Maiorca, S. | Engineering Index Backfile | 1931


    Airplane landing gear

    Maiorca, Salvatore | TIBKAT | 1931


    The NASA landing gear test airplane

    Carter, John F. / Nagy, Christopher J. | NTRS | 1995


    Airplane landing gear

    Maiorca, Salvatore | NTRS | 1931