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Design and Testing of CPAS Main Deployment Bag Energy ModulatorDuring the developmental testing program for CPAS (Capsule Parachute Assembly System), the parachute system for the NASA Orion Crew Module, simulation revealed that high loads may be experienced by the pilot risers during the most devere deployment conditions. As the role of the pilot parachutes is to deploy the main parachutes, these high loads introduced the possibility of main deployment failure. In order to mitigate these high loads, a set of energy modulators was incorporated between the pilot riser and the main deployment bag. An extensive developmental program was implemented to ensure the adequacy of these energy modulators. After initial design comparisons, the energy modulator design was validated through slow-speed joint tests as well as through high-speed bungee tests. This paper documents the design, development, and results of multiple tests completed on the final design.
Document ID
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Mollmann, Catherine
(Airborne Systems North America Santa Ana, CA, United States)
Date Acquired
May 5, 2017
Publication Date
June 5, 2017
Subject Category
Space Transportation And Safety
Report/Patent Number
Meeting Information
Meeting: AIAA Aerodynamic Decelerator Systems Technology Conference
Location: Denver, CO
Country: United States
Start Date: June 5, 2017
End Date: June 9, 2017
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public Use Permitted.
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