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Vertical Drop Testing and Analysis of the WASP Helicopter Skid GearHuman occupant modeling and injury risk assessment have been identified as areas of research for improved prediction of rotorcraft crashworthiness within the NASA Aeronautics Program's Subsonic Rotary Wing Project. As part of this effort, an experimental program was conducted to assess the impact performance of a skid gear for use on the WASP kit-built helicopter, which is marketed by HeloWerks, Inc. of Hampton, Virginia. Test data from a drop test at an impact velocity of 8.4 feet-per-second were used to assess a finite element model of the skid gear test article. This assessment included human occupant analytic models developed for execution in LS-DYNA. The test article consisted of an aluminum skid gear mounted beneath a steel plate. A seating platform was attached to the upper surface of the steel plate, and two 95th percentile Hybrid III male Aerospace Anthropomorphic Test Devices (ATDs) were seated on the platform and secured using a four-point restraint system. The goal of the test-analysis correlation is to further the understanding of LS-DYNA ATD occupant models and responses in the vertical (or spinal) direction. By correlating human occupant experimental test data for a purely vertical impact with the LS-DYNA occupant responses, improved confidence in the use of these tools and better understanding of the limitations of the automotive-based occupant models for aerospace application can begin to be developed.
Document ID
20080017012
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Fuchs, Yvonne T.
(NASA Langley Research Center Hampton, VA, United States)
Jackson, Karen E.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 24, 2013
Publication Date
April 29, 2008
Subject Category
Aircraft Design, Testing And Performance
Meeting Information
Meeting: American Helicopter Society 64th Annual Forum
Location: Montreal
Country: Canada
Start Date: April 29, 2008
End Date: May 1, 2008
Sponsors: American Helicopter Society, Inc.
Funding Number(s)
WBS: WBS 877868.02.07.07.05.02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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