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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721176939
Category :
Languages : en
Pages : 34
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Book Description
The Attitude Control and Energy Storage Experiment is currently under development for the International Space Station; two counter-rotating flywheels will be levitated with magnetic bearings and placed in vacuum housings. The primary objective of the experiment is to store and discharge energy, in combination with existing batteries, into the electrical power system. The secondary objective is to use the flywheels to exert torque on the Station; a simple torque profile has been designed so that the Station's Control Moment Gyroscopes will be assisted in maintaining torque equilibrium attitude. Two energy storage contingencies could result in the inadvertent application of torque by the flywheels to the Station: an emergency shutdown of one flywheel rotor while the other remains spinning, and energy storage with only one rotor instead of the counterrotating pair. Analysis of these two contingencies shows that attitude control and the microgravity environment will not be adversely affected. Roithmayr, Carlos M. Langley Research Center NASA/TM-1999-209100, L-17795, NAS 1.15:209100
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721176939
Category :
Languages : en
Pages : 34
Get Book Here
Book Description
The Attitude Control and Energy Storage Experiment is currently under development for the International Space Station; two counter-rotating flywheels will be levitated with magnetic bearings and placed in vacuum housings. The primary objective of the experiment is to store and discharge energy, in combination with existing batteries, into the electrical power system. The secondary objective is to use the flywheels to exert torque on the Station; a simple torque profile has been designed so that the Station's Control Moment Gyroscopes will be assisted in maintaining torque equilibrium attitude. Two energy storage contingencies could result in the inadvertent application of torque by the flywheels to the Station: an emergency shutdown of one flywheel rotor while the other remains spinning, and energy storage with only one rotor instead of the counterrotating pair. Analysis of these two contingencies shows that attitude control and the microgravity environment will not be adversely affected. Roithmayr, Carlos M. Langley Research Center NASA/TM-1999-209100, L-17795, NAS 1.15:209100
Author: Carlos M. Roithmayr
Publisher:
ISBN:
Category : Torque
Languages : en
Pages : 24
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Author:
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ISBN:
Category : Astronautics
Languages : en
Pages : 182
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Author: Daniel J. Scheeres
Publisher:
ISBN:
Category : Navigation (Astronautics)
Languages : en
Pages : 778
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Author:
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ISBN:
Category : Power (Mechanics)
Languages : en
Pages : 344
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Author:
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Category : Aeronautics
Languages : en
Pages : 328
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Category : Large space structures (Astronautics)
Languages : en
Pages : 308
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Book Description
Author: Frederick A. Leve
Publisher: Springer
ISBN: 3319225634
Category : Technology & Engineering
Languages : en
Pages : 262
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Book Description
The goal of this book is to serve both as a practical technical reference and a resource for gaining a fuller understanding of the state of the art of spacecraft momentum control systems, specifically looking at control moment gyroscopes (CMGs). As a result, the subject matter includes theory, technology, and systems engineering. The authors combine material on system-level architecture of spacecraft that feature momentum-control systems with material about the momentum-control hardware and software. This also encompasses material on the theoretical and algorithmic approaches to the control of space vehicles with CMGs. In essence, CMGs are the attitude-control actuators that make contemporary highly agile spacecraft possible. The rise of commercial Earth imaging, the advances in privately built spacecraft (including small satellites), and the growing popularity of the subject matter in academic circles over the past decade argues that now is the time for an in-depth treatment of the topic. CMGs are augmented by reaction wheels and related algorithms for steering all such actuators, which together comprise the field of spacecraft momentum control systems. The material is presented at a level suitable for practicing engineers and those with an undergraduate degree in mechanical, electrical, and/or aerospace engineering.
Author:
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Category : India
Languages : en
Pages : 564
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Author:
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Category : Direct energy conversion
Languages : en
Pages : 844
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