Eric S. Ray

Aerospace Engineering Publications

Here are papers I have authored or co-authored (most recent first). Additional papers on these subjects can be found at The American Institute of Aeronautics and Astronautics. All papers are works of the US government and are not covered by copyright.

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CapsuleParachute Assembly System       NASA Johnson Space Center, Houston, TX
E. Ray, L. Cassady & J. Davidson, “A Sample/Jitter Monte Carlo Technique for Main Parachute Loads Predictions,” AIAA Paper 2022-2701, 26th AIAA Aerodynamic Decelerator Systems Conference, Toulouse, France, May 2022
E. Ray & S. Janssen, “Orion Main Parachute Asymmetry Testing Revisited,” AIAA Paper 2022-2705, 26th AIAA Aerodynamic Decelerator Systems Conference, Toulouse, France, May 2022
S. Janssen & E. Ray, “Correlation of Canopy Distortion with Asymmetric Loading in Large Diameter Ringsail Parachutes,” AIAA Paper 2022-2706, 26th AIAA Aerodynamic Decelerator Systems Conference, Toulouse, France, May 2022
E. Ray, “Updated Reconstruction Methods for Modeling Orion Parachute Loads,” AIAA Paper 2019-3143, 25th AIAA Aerodynamic Decelerator Systems Conference, Dallas, Texas, June 2019
E. Ray, “Test Vehicle Forebody Wake Effects on CPAS Parachutes,” AIAA Paper 2017-3227, 24th AIAA Aerodynamic Decelerator Systems Conference, Denver, Colorado, June 2017
E. Ray, “Photographic Volume Estimation of CPAS Main Parachutes,” AIAA Paper 2017-3229, 24th AIAA Aerodynamic Decelerator Systems Conference, Denver, Colorado, June 2017
E. Ray, “Isolating Added Mass Load Components of CPAS Main Clusters,” AIAA Paper 2017-3232, 24th AIAA Aerodynamic Decelerator Systems Conference, Denver, Colorado, June 2017
J. Potvin and E. Ray, “Extrapolating the Trends of Test Drop Data with Opening Shock Factor Calculations: the Case of the Orion Main and Drogue Parachutes Inflating to 1st Reefed Stage,” AIAA Paper 2017-3228, 24th AIAA Aerodynamic Decelerator Systems Conference, Denver, Colorado, June 2017
E. Ray, “A Symmetric Time-Varying Cluster Rate of Descent Model,” AIAA Paper 2015-2137, 23rd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2015
E. Ray and R. Machín, “Pendulum Motion in Main Parachute Clusters,” AIAA Paper 2015-2138, 23rd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2015
L. Romero, K. Bledsoe, E. Ray, et al.,  “Summary of CPAS EDU Testing Analysis Results,” AIAA Paper 2015-2179, 23rd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2015
E. Ray and J. Varela, “Inflation of Unreefed and Reefed Extraction Parachutes,” AIAA Paper 2015-2180, 23rd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2015
E. Ray, “Reefing Line Tension in CPAS Main Parachute Clusters,” AIAA Paper 2013-1393, 22nd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2013
E. Ray, E. Hennings, and M. Bernatovich, “Testing Small CPAS Parachutes Using HIVAS,” AIAA Paper 2013-1309, 22nd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2013
L. Romero and E. Ray, “Application of Statistically Derived CPAS Parachute Parameters,” AIAA Paper 2013-1266, 22nd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2013
E. Ray, “Reconstruction of Orion EDU Parachute Inflation Loads,” AIAA Paper 2013-1260, 22nd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2013
L. Cassady, T. Truong, and E. Ray, “Aerodynamic Reconstruction Applied to Parachute Test Vehicle Flight Data Analysis,” AIAA Paper 2013-1259, 22nd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2013
E. Ray and D. Bretz, “Improved CPAS Photogrammetric Capabilities for Engineering Development Unit (EDU) Testing,” AIAA Paper 2013-1258, 22nd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2013
J. Varela and E. Ray, “Skipped Stage Modeling and Testing of the CPAS Main Parachutes,” AIAA Paper 2013-1257, 22nd AIAA Aerodynamic Decelerator Systems Conference, Daytona Beach, Florida, March 2013
A. Morris, K. Bledsoe, U. Fraire, J. Moore, L. Olson, and E. Ray, “Simulating New Drop Test Vehicles and Test Techniques for the Orion CEV Parachute Assembly System,” AIAA Paper 2011-2616, 21st AIAA Aerodynamic Decelerator Systems Technology Conference, Dublin, Ireland, May 2011
A. Morris, K. Bledsoe, U. Fraire, J. Moore, L. Olson, and E. Ray, “Summary of CPAS Gen II Testing Analysis Results,” AIAA Paper 2011-2585, 21st AIAA Aerodynamic Decelerator Systems Technology Conference, Dublin, Ireland, May 2011
E. Ray and A. Morris, “Challenges of CPAS Flight Testing,” AIAA Paper 2011-2557, 21st AIAA Aerodynamic Decelerator Systems Technology Conference, Dublin, Ireland, May 2011
E. Ray and A. Morris, “Measurement of CPAS Main Parachute Rate of Descent,” AIAA Paper 2011-2545, 21st AIAA Aerodynamic Decelerator Systems Technology Conference, Dublin, Ireland, May 2011
E. Ray, D. Bretz, and A. Morris, “Photogrammetric Analysis of CPAS Main Parachutes,” AIAA Paper 2011-2538, 21st AIAA Aerodynamic Decelerator Systems Technology Conference, Dublin, Ireland, May 2011
Naval Air Systems Command     Patuxent River, MD
E. Hallberg, E. Ray, and R. Fitzwater, “Store Separation Trajectory Simulation for the High Speed Anti-Radiation Demonstrator (HSAD) Program,” AIAA Paper 2006-460, 44th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, Jan. 9-12, 2006.
“Authorizing SLAM-ER use from the P-3C with CFD,” AIAA Paper 2005-0845, AIAA Aerospace Sciences Meeting, January 2005.
“CFD Applied to Separation of SLAM-ER From the S-3B,” AIAA Paper 2003-4226, AIAA Applied Aerodynamics Conference, June 2003.
“Comparison of AEDC 4T and CALSPAN 8-FT Wind Tunnel for F/A-18C/JDAM Store Separation,” AIAA Paper 2000-0793, AIAA Aerospace Sciences Meeting, January 2000.