The report describes the development of a mathematical model that will simulate the response of a UH-ID/H helicopter airframe to vertical crash loading and the full-scale crash test performed to verify the validity of the model. The results of this program indicate that: The structural weakness contributing to most impact injuries in UH-1D/H helicopter accidents are lack of resistance to failure in lateral roll-over and lack of energy-absorbing capability to reduce vertical accelerations; The matical model is capable of accurately predicting the floor and engine accelerations and deflections; In its present form, the model does not accurately predict the transmission accelerations and deflections. (Author)


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    Title :

    Analysis of Helicopter Structural Crashworthiness. Volume I. Mathematical Simulation and Experimental Verification for Helicopter Crashworthiness


    Contributors:
    C. I. Gatlin (author) / D. E. Goebel (author) / S. E. Larsen (author)

    Publication date :

    1971


    Size :

    162 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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