THE DYNAMIC PERFORMANCE OF A VARIETY OF SEAT CUSHION MATERIALS UNDER VERTICAL IMPACT LOADS

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Authors
  1. Day, D.R.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
A series of twenty-nine impacts using the HyGe Crash Simulator at the Impact Studies Facility of the Defence and Civil Institute of Environmental Medicine (DCIEM) was performed in order to determine the effectiveness of a variety of seat cushion materials in preventing spinal injuries during high accelerative loading. These commonly occur during helicopter crashes with relatively large vertical velocity components, hard landings of Schweizer training gliders, and ejections from jet aircraft. Two simple wooden seats were mounted on the impact sled so as to simulate impacts in the vertical (bottom of seat pan to top) direction only, with a velocity change of 21 miles per hour, with a peak deceleration of 17G. The results showed that none of the "energy absorbing" cushions tested had any significant effect on the probable occurence of spinal injury. TRUNCATED
Keywords
Aircraft seats
Report Number
DCIEM-88-TR-53 — Technical Report
Date of publication
15 Dec 1988
Number of Pages
151
DSTKIM No
89-00827
CANDIS No
58765
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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