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Load Asymmetry Observed During Orion Main Parachute InflationThe Crew Exploration Vehicle Parachute Assembly System (CPAS) has flight tested the first two generations of the Orion parachute program. Three of the second generation tests instrumented the dispersion bridles of the Main parachute with a Tension Measuring System. The goal of this load measurement was to better understand load asymmetry during the inflation process of a cluster of Main parachutes. The CPAS Main parachutes exhibit inflations that are much less symmetric than current parachute literature and design guides would indicate. This paper will examine loads data gathered on three cluster tests, quantify the degree of asymmetry observed, and contrast the results with published design guides. Additionally, the measured loads data will be correlated with videos of the parachute inflation to make inferences about the shape of the parachute and the relative load asymmetry. The goal of this inquiry and test program is to open a dialogue regarding asymmetrical parachute inflation load factors.
Document ID
Document Type
Conference Paper
Morris, Aaron L. (Barrios Technology, Inc. Houston, TX, United States)
Taylor, Thomas (Jacobs Technologies Engineering Science Contract Group Houston, TX, United States)
Olson, Leah (Jacobs Technologies Engineering Science Contract Group Houston, TX, United States)
Date Acquired
August 25, 2013
Publication Date
May 23, 2011
Subject Category
Spacecraft Design, Testing and Performance
Report/Patent Number
Meeting Information
21st AIAA Aerodynamic Decelerator Systems Technology Conference and Seminar(Dublin)
Funding Number(s)
WBS: WBS 644423.
Distribution Limits
Public Use Permitted.

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