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Verification of the Generalized Aerospace Simulation in SimulinkNASA uses six-degrees-of-freedom (6-DOF) simulations tools to design, test, develop Guidance Navigation and Control (GN&C) software, and certify vehicle performance prior to flight. Therefore, it is critical that the 6-DOF tools used for vehicle design and certification are validated. The focus of this work is the validation of the NASA Marshall Space Flight Center 6-DOF “GeneraLized Aerospace Simulation in Simulink” (GLASS) framework tool. The GLASS tool framework is currently used to support NASA GN&C insight for the Human Landing System (HLS) project, simulating vehicle dynamics during lunar descent and ascent. The GLASS framework utilizes the off-the-shelf Mathworks (R) Simscape (TM) Multibody (TM) toolbox to model vehicle multi-body dynamics. NASA’s Engineering and Safety Center (NESC) provides a set of 6-DOF simulation verification “check cases” that are available to any user needing to verify 6-DOF tools. The check cases contain seventeen atmospheric and twenty-six orbital test scenarios are provided to validate equations of motion, environmental models (e.g., atmosphere, gravitation, and geodesy) and tool propagators. This paper compares GLASS 6-DOF simulation results against the NESC check cases’ results via simulation-to-simulation comparisons. The comparison demonstrates that GLASS simulation results are “in family” with the outputs of the applicable NASA NESC check-cases and verify the GLASS core framework dynamics and the implementation of the check case scenario models.
Document ID
20230017903
Acquisition Source
Marshall Space Flight Center
Document Type
Presentation
Authors
Nicholas Olson
(Jacobs (United States) Dallas, Texas, United States)
Justin Ganiban
(Jacobs (United States) Dallas, Texas, United States)
Juan Orphee
(Marshall Space Flight Center Redstone Arsenal, United States)
Matt Hawkins
(Marshall Space Flight Center Redstone Arsenal, United States)
Date Acquired
December 7, 2023
Subject Category
Engineering (General)
Report/Patent Number
AAS-24-081
Meeting Information
Meeting: 46th Annual AAS Guidance, Navigation and Control (GN&C) Conference
Location: Breckenridge, CO
Country: US
Start Date: February 1, 2024
End Date: February 7, 2024
Sponsors: American Astronautical Society
Funding Number(s)
CONTRACT_GRANT: 80MSFC18C0011
WBS: 954879.06.03.06.62
TASK: EV41.01.01.HLSP.SVS.00
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
6-Dof
simulation
lunar
simulink
verification
GNC
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