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Orion Main Parachute Asymmetry Testing RevisitedLimited bridle-level asymmetry data were collected on three Orion main parachute cluster tests early in the development program. The results were published contemporaneously using analysis techniques developed by the Ares parachute program. Both programs seemed to indicate that large parachutes could develop line asymmetries far larger than what was assumed in design guides. Unfortunately, no additional asymmetry data were collected during Orion parachute development to corroborate these results. Recent high-fidelity data from Commercial Crew Program parachute system tests reinforce these legacy results. A method was developed to estimate suspension line-level asymmetry by “un-averaging” Orion bridle-level measurements using assumptions gleaned from the recent CCP experience. Efforts were made to improve the visualization of load asymmetry and its relationship with parachute geometric shape deformations.
Document ID
20220003976
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Eric S. Ray
(Johnson Space Center Houston, Texas, United States)
Samuel Allen Janssen
(Jacobs Technology, Inc.)
Date Acquired
March 4, 2022
Subject Category
Spacecraft Design, Testing And Performance
Meeting Information
Meeting: 26th AIAA Aerodynamic Decelerator Systems Technology Conference and Seminar
Location: Toulouse
Country: FR
Start Date: May 16, 2022
End Date: May 19, 2022
Sponsors: American Institute of Aeronautics and Astronautics, DGA Techniques aéronautiques
Funding Number(s)
WBS: 484997.01.06.01.02
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
parachutes
aerodynamic decelerators
orion
entry descent and landing
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