Simulation, flight performance and control of Dynamics Explorers-A and -B spacecraftThis paper presents the results obtained from a study conducted to evaluate the dynamic behavior of Dynamics Explorers-A and -B spacecraft. The effects of environmental torques on the spacecraft motion, momentum buildup due to these torques, and the long appendages on the main body motion are studied using numerical simulations. The numerical results are compared with flight data and are found to be in good agreement. A control philosophy for DE-B to minimize the pitch axis drift is developed. The performance of DE-B in inverted mode and during the inversion maneuver as well as in the normal mode are studied. The spin ripple effect on DE-A due to the long appendages is analyzed and the results are correlated with flight data.
Document ID
19820055351
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sellappan, R. G. (OAO Corp. Greenbelt, MD, United States)
Sen, S. (OAO Corp. Greenbelt, MD, United States)
Date Acquired
August 10, 2013
Publication Date
August 1, 1982
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 82-1455
Meeting Information
Meeting: Astrodynamics Conference
Location: San Diego, CA
Start Date: August 9, 1982
End Date: August 11, 1982
Sponsors: American Institute of Aeronautics and Astronautics and American Astronautical Society