NDLI: Design and test of an improved crashworthiness small composite airframe

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Design and test of an improved crashworthiness small composite airframe

Content Provider	NASA Technical Reports Server (NTRS)
Author	Terry, James E. Hooper, Steven J. Nicholson, Mark
Copyright Year	2002
Description	The purpose of this small business innovative research (SBIR) program was to evaluate the feasibility of developing small composite airplanes with improved crashworthiness. A combination of analysis and half scale component tests were used to develop an energy absorbing airframe. Four full scale crash tests were conducted at the NASA Impact Dynamics Research Facility, two on a hard surface and two onto soft soil, replicating earlier NASA tests of production general aviation airplanes. Several seat designs and restraint systems including both an air bag and load limiting shoulder harnesses were tested. Tests showed that occupant loads were within survivable limits with the improved structural design and the proper combination of seats and restraint systems. There was no loss of cabin volume during the events. The analysis method developed provided design guidance but time did not allow extending the analysis to soft soil impact. This project demonstrated that survivability improvements are possible with modest weight penalties. The design methods can be readily applied by airplane designers using the examples in this report.
File Size	47426004
Page Count	228
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20020068132
Archival Resource Key	ark:/13960/t2n63gz2r
Language	English
Publisher Date	2002-08-01
Access Restriction	Open
Subject Keyword	Aircraft Design, Testing And Performance Structural Design Safety Devices Feasibility Analysis General Aviation Aircraft Harnesses Seats Composite Materials Full Scale Tests Aircraft Accidents Airframes Aircraft Pilots Crashworthiness 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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