Recent advances in computational speed have made aircraft and spacecraft crash simulations using an explicit, nonlinear, transient-dynamic, finite element analysis code more feasible. This paper describes the development of a simple landing gear model, which accurately simulates the energy absorbed by the gear without adding substantial complexity to the model. For a crash model, the landing gear response is approximated with a spring where the force applied to the fuselage is computed in a user-written subroutine. Helicopter crash simulations using this approach are compared with previously acquired experimental data from a full-scale crash test of a composite helicopter.


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    Title :

    Simulation of Aircraft Landing Gears with a Nonlinear Dynamic Finite Element Code


    Contributors:

    Publication date :

    2000


    Size :

    10 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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