A task was initiated to improve the energy absorption capability of an existing aircraft seat through cost-effective retrofitting, while keeping seat-weight increase to a minimum. This task was undertaken as an extension of NASA ongoing safety research and commitment to general aviation customer needs. Only vertical crash scenarios have been considered in this task which required the energy absorbing system to protect the seat occupant in a range of crash speeds up to 31 ft/sec. It was anticipated that, the forward and/or side crash accelerations could be attenuated with the aid of airbags, the technology of which is currently available in automobiles and military helicopters. Steps which were followed include, preliminary crush load determination, conceptual design of cost effective energy absorbers, fabrication and testing (static and dynamic) of energy absorbers, system analysis, design and fabrication of dummy seat/rail assembly, dynamic testing of dummy seat/rail assembly, and finally, testing of actual modified seat system with a dummy occupant. A total of ten full scale tests have been performed including three of the actual aircraft seat. Results from full-scale tests indicated that occupant loads were attenuated successfully to survivable levels.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Energy Absorbing Seat System for an Agricultural Aircraft


    Contributors:
    S. Kellas (author)

    Publication date :

    2002


    Size :

    31 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Energy Absorbing Seat System for an Agricultural Aircraft

    Kellas, Sotiris / Jones, Lisa E. | NTRS | 2002


    Energy-absorbing aircraft seat

    Online Contents | 1995


    ENERGY-ABSORBING SEAT FOR AIRCRAFT

    SLUKHANOV GERMAN NIKITOVICH / EGOROV VENIAMIN ALEKSANDROVICH / MARTYAGIN ALEKSEJ ANDREEVICH et al. | European Patent Office | 2017

    Free access

    Energy absorbing assembly for aircraft seat

    PACHECO CHAD R / MARUTZKY KYLER J | European Patent Office | 2018

    Free access

    ENERGY ABSORBING ASSEMBLY FOR AIRCRAFT SEAT

    PACHECO CHAD R / MARUTZKY KYLER J | European Patent Office | 2018

    Free access