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Full-scale crash test of a md-500 helicopter with deployable energy absorbers
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Jackson, Karen E. Kellas Sr., Sotiris Littell, Justin D. |
| Copyright Year | 2010 |
| Description | A new externally deployable energy absorbing system was demonstrated during a full-scale crash test of an MD-500 helicopter. The deployable system is a honeycomb structure and utilizes composite materials in its construction. A set of two Deployable Energy Absorbers (DEAs) were fitted on the MD-500 helicopter for the full-scale crash demonstration. Four anthropomorphic dummy occupants were also used to assess human survivability. A demonstration test was performed at NASA Langley's Landing and Impact Research Facility (LandIR). The test involved impacting the helicopter on a concrete surface with combined forward and vertical velocity components of 40-ft/s and 26-ft/s, respectively. The objectives of the test were to evaluate the performance of the DEA concept under realistic crash conditions and to generate test data for validation of dynamic finite element simulations. Descriptions of this test as well as other component and full-scale tests leading to the helicopter test are discussed. Acceleration data from the anthropomorphic dummies showed that dynamic loads were successfully attenuated to within non-injurious levels. Moreover, the airframe itself survived the relatively severe impact and was retested to provide baseline data for comparison for cases with and without DEAs. |
| File Size | 4373732 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100019313 |
| Archival Resource Key | ark:/13960/t8nd0z30z |
| Language | English |
| Publisher Date | 2010-05-11 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Construction Composite Materials Airframes Simulation Helicopters Research Facilities Dynamic Loads Honeycomb Structures Impact Loads Energy Absorption Crashworthiness Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
