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Huntsville, AL, United States

Hall R.A.,Crm Solutions, Inc. | Hough S.,NASA | Orphee C.,NASA | Clements K.,NASA
2016 AIAA Guidance, Navigation, and Control Conference | Year: 2016

Basic principles for the design and stability of a spacecraft on-orbit attitude control system employing on-off Reaction Control System (RCS) thrusters are presented. Both vehicle dynamics and the control system actuators are inherently nonlinear, hence traditional linear control system design approaches are not directly applicable. This paper has two main aspects: It summarizes key RCS design principles from earlier NASA vehicles, notably the Space Shuttle and Space Station programs, and introduces advances in the linear modelling and analyses of a phase plane control system derived in the initial development of the NASA’s next upper stage vehicle, the Exploration Upper Stage (EUS). Topics include thruster hardware specifications, phase plane design and stability, jet selection approaches, filter design metrics, and RCS rotational maneuver logic. © 2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved. Source


Crm Solutions, Inc. | Entity website

1.256 ...


Crm Solutions, Inc. | Entity website

CRM has extensive experience in computational modeling of core stage, stage separation and booster nozzle flow. Analysis efforts include:


Crm Solutions, Inc. | Entity website

CRM has experience in both debris transport analysis and debris impact analysis. Analyst experience dates back to the 1990s when warhead damage assessment studies from KVs were performed for AMCOM (MICOM at the time), AMRDEC in Hunstville, Al ...


Crm Solutions, Inc. | Entity website

1.256 ...

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