NDLI: Energy absorbing seat system for an agricultural aircraft

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Energy absorbing seat system for an agricultural aircraft

Content Provider	NASA Technical Reports Server (NTRS)
Author	Kellas Sr., Sotiris
Copyright Year	2002
Description	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.
File Size	2635082
Page Count	31
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20030002376
Archival Resource Key	ark:/13960/t9867g71w
Language	English
Publisher Date	2002-12-01
Access Restriction	Open
Subject Keyword	Aircraft Design, Testing And Performance Agricultural Aircraft Crashes Retrofitting Aircraft Compartments Automobiles Seats Fabrication Full Scale Tests Cost Effectiveness Systems Engineering Energy Absorption Air Bag Restraint Devices Loads Forces Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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