Spacecraft Attitude And Power Control Using Variable Speed Control Moment Gyros

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Spacecraft Attitude and Power Control Using Variable Speed Control Moment Gyros

Author : Hyungjoo Yoon
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (574 download)

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Book Synopsis Spacecraft Attitude and Power Control Using Variable Speed Control Moment Gyros by : Hyungjoo Yoon

Download or read book Spacecraft Attitude and Power Control Using Variable Speed Control Moment Gyros written by Hyungjoo Yoon and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A Variable Speed Control Moment Gyro (VSCMG) is a recently introduced actuator for spacecraft attitude control. As its name implies, a VSCMG is essentially a single-gimbal control moment gyro (CMG) with a flywheel allowed to have variable spin speed. Thanks to its extra degrees of freedom, a VSCMGs cluster can be used to achieve additional objectives, such as power tracking and/or singularity avoidance, as well as attitude control. In this thesis, control laws for an integrated power/attitude control system (IPACS) for a satellite using VSCMGs are introduced. The power tracking objective is achieved by storing or releasing the kinetic energy in the wheels. The proposed control algorithms perform both the attitude and power tracking goals simultaneously. This thesis also provides a singularity analysis and avoidance method using CMGs/VSCMGs. This issue is studied for both the cases of attitude tracking with and without a power tracking requirement. A null motion method to avoid singularities is presented, and a criterion is developed to determine the momentum region over which this method will successfully avoid singularities. The spacecraft angular velocity and attitude control problem using a single VSCMG is also addressed. A body-fixed axis is chosen to be perpendicular to the gimbal axis, and it is controlled to aim at an arbitrarily given inertial direction, while the spacecraft angular velocity is stabilized. Finally, an adaptive control algorithm for the spacecraft attitude tracking in case when the actuator parameters, for instance the spin axis directions, are uncertain is developed. The equations of motion in this case are fully nonlinear and represent a Multi-Input-Multi-Output (MIMO) system. The smooth projection algorithm is applied to keep the parameter estimates inside a singularity-free region. The design procedure can also be easily applied to general MIMO dynamical systems.

Fast Satellite Attitude Maneuver and Control

Author : Dong Ye
Publisher : Academic Press
ISBN 13 : 0323954561
Total Pages : 280 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Fast Satellite Attitude Maneuver and Control by : Dong Ye

Download or read book Fast Satellite Attitude Maneuver and Control written by Dong Ye and published by Academic Press. This book was released on 2022-08-02 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fast Satellite Attitude Maneuver and Control introduces the concept of agile satellites and corresponding fast maneuver attitude control systems, systematically and comprehensively presenting recent research results of fast maneuver attitude control for agile satellites by using advanced nonlinear control techniques. This reference book focuses on modeling and attitude control, considering different actuator combinations, actuator installation deviation, actuator fault, and flexible appendage coupling effect for agile satellites. The book provides a unified platform for understanding and applicability of agile satellites fast maneuverer and stabilization control for different purposes. It will be an excellent resource for researchers working on spacecraft design, nonlinear control systems, vehicle systems and complex control systems. Unifies existing and emerging concepts concerning nonlinear control theory, fault tolerant, and attitude control for agile satellites Provides a series of the latest results, including, but not limited to, fast maneuverer and stabilization control, hybrid actuator control, nonlinear attitude control, fault tolerant control, and active vibration suppression towards agile satellites Comprehensively captures recent advances of theory, technological aspects and applications of fast maneuverer and stabilization control in agile satellites Addresses research problems in each chapter, along with numerical and simulation results that reflect engineering practice and demonstrate the focus of developed analysis and synthesis approaches Contains comprehensive, up-to-date references, which play an indicative role for further study

A Novel Integrated Spacecraft Attitude Control System Using Variable Speed Control Moment Gyroscopes

Author : Dohee Kim
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (818 download)

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Book Synopsis A Novel Integrated Spacecraft Attitude Control System Using Variable Speed Control Moment Gyroscopes by : Dohee Kim

Download or read book A Novel Integrated Spacecraft Attitude Control System Using Variable Speed Control Moment Gyroscopes written by Dohee Kim and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A kinematic model quanti ed by quaternion and a nonlinear VSCMG-actuated satellite dynamic model are developed in Chapter 2. To actively and effectively utilize CMG mode of VSCMG, analysis for CMG singularities is also included in this chapter.

Spacecraft Modeling, Attitude Determination, and Control

Author : Yaguang Yang
Publisher : CRC Press
ISBN 13 : 0429822146
Total Pages : 328 pages
Book Rating : 4.4/5 (298 download)

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Book Synopsis Spacecraft Modeling, Attitude Determination, and Control by : Yaguang Yang

Download or read book Spacecraft Modeling, Attitude Determination, and Control written by Yaguang Yang and published by CRC Press. This book was released on 2019-02-06 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses all spacecraft attitude control-related topics: spacecraft (including attitude measurements, actuator, and disturbance torques), modeling, spacecraft attitude determination and estimation, and spacecraft attitude controls. Unlike other books addressing these topics, this book focuses on quaternion-based methods because of its many merits. The book lays a brief, but necessary background on rotation sequence representations and frequently used reference frames that form the foundation of spacecraft attitude description. It then discusses the fundamentals of attitude determination using vector measurements, various efficient (including very recently developed) attitude determination algorithms, and the instruments and methods of popular vector measurements. With available attitude measurements, attitude control designs for inertial point and nadir pointing are presented in terms of required torques which are independent of actuators in use. Given the required control torques, some actuators are not able to generate the accurate control torques, therefore, spacecraft attitude control design methods with achievable torques for these actuators (for example, magnetic torque bars and control moment gyros) are provided. Some rigorous controllability results are provided. The book also includes attitude control in some special maneuvers, such as orbital-raising, docking and rendezvous, that are normally not discussed in similar books. Almost all design methods are based on state-spaced modern control approaches, such as linear quadratic optimal control, robust pole assignment control, model predictive control, and gain scheduling control. Applications of these methods to spacecraft attitude control problems are provided. Appendices are provided for readers who are not familiar with these topics.

Spacecraft Momentum Control Systems

Author : Frederick A. Leve
Publisher : Springer
ISBN 13 : 3319225634
Total Pages : 262 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Spacecraft Momentum Control Systems by : Frederick A. Leve

Download or read book Spacecraft Momentum Control Systems written by Frederick A. Leve and published by Springer. This book was released on 2015-10-17 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Simultaneous Attitude Control and Energy Storage Using VSCMGs

Author : David James Richie
Publisher :
ISBN 13 : 9781423528135
Total Pages : 162 pages
Book Rating : 4.5/5 (281 download)

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Book Synopsis Simultaneous Attitude Control and Energy Storage Using VSCMGs by : David James Richie

Download or read book Simultaneous Attitude Control and Energy Storage Using VSCMGs written by David James Richie and published by . This book was released on 2001-04-01 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work examines the simultaneous use of single-gimbal Variable Speed Control Moment Gyroscopes (VSCMGs) as spacecraft attitude control actuators and energy storage devices. The resulting theory is then used as the foundation for designing the VSCMG Workbench, a simulation tool designed to meet the Air Force Research Laboratory's need for a realistic/flexible compute simulation for conceptual analysis and hardware-in-the-loop testing. this tool allows both Georgia Tech and AFRL's Space Vehicles Directorate a low-cost alternative for analyzing the feasibility of employing a combined attitude control/energy storage system as well as the technical details to create such a system for different types of spacecraft. Its modularity permits adding more model fidelity in the future with little user training required.

Space Vehicle Dynamics and Control

Author : Bong Wie
Publisher : AIAA
ISBN 13 : 9781563472619
Total Pages : 692 pages
Book Rating : 4.4/5 (726 download)

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Book Synopsis Space Vehicle Dynamics and Control by : Bong Wie

Download or read book Space Vehicle Dynamics and Control written by Bong Wie and published by AIAA. This book was released on 1998 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: A textbook that incorporates the latest methods used for the analysis of spacecraft orbital, attitude, and structural dynamics and control. Spacecraft dynamics is treated as a dynamic system with emphasis on practical applications, typical examples of which are the analysis and redesign of the pointing control system of the Hubble Space Telescope and the analysis of an active vibrations control for the COFS (Control of Flexible Structures) Mast Flight System. In addition to the three subjects mentioned above, dynamic systems modeling, analysis, and control are also discussed. Annotation copyrighted by Book News, Inc., Portland, OR

Spacecraft Attitude Determination and Control

Author : J.R. Wertz
Publisher : Springer Science & Business Media
ISBN 13 : 9400999070
Total Pages : 877 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Spacecraft Attitude Determination and Control by : J.R. Wertz

Download or read book Spacecraft Attitude Determination and Control written by J.R. Wertz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 877 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roger D. Werking Head, Attitude Determination and Control Section National Aeronautics and Space Administration/ Goddard Space Flight Center Extensiye work has been done for many years in the areas of attitude determination, attitude prediction, and attitude control. During this time, it has been difficult to obtain reference material that provided a comprehensive overview of attitude support activities. This lack of reference material has made it difficult for those not intimately involved in attitude functions to become acquainted with the ideas and activities which are essential to understanding the various aspects of spacecraft attitude support. As a result, I felt the need for a document which could be used by a variety of persons to obtain an understanding of the work which has been done in support of spacecraft attitude objectives. It is believed that this book, prepared by the Computer Sciences Corporation under the able direction of Dr. James Wertz, provides this type of reference. This book can serve as a reference for individuals involved in mission planning, attitude determination, and attitude dynamics; an introductory textbook for stu dents and professionals starting in this field; an information source for experimen ters or others involved in spacecraft-related work who need information on spacecraft orientation and how it is determined, but who have neither the time nor the resources to pursue the varied literature on this subject; and a tool for encouraging those who could expand this discipline to do so, because much remains to be done to satisfy future needs.

Design, Dynamics and Control of an Adaptive Singularity-free Control Moment Gyroscope Actuator for Microspacecraft Attitude Determination and Control System

Download Design, Dynamics and Control of an Adaptive Singularity-free Control Moment Gyroscope Actuator for Microspacecraft Attitude Determination and Control System PDF Online Free

Author : Sasi Prabhakaran Viswanathan
Publisher :
ISBN 13 :
Total Pages : 282 pages
Book Rating : 4.:/5 (958 download)

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Book Synopsis Design, Dynamics and Control of an Adaptive Singularity-free Control Moment Gyroscope Actuator for Microspacecraft Attitude Determination and Control System by : Sasi Prabhakaran Viswanathan

Download or read book Design, Dynamics and Control of an Adaptive Singularity-free Control Moment Gyroscope Actuator for Microspacecraft Attitude Determination and Control System written by Sasi Prabhakaran Viswanathan and published by . This book was released on 2015 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design dynamics, control and implementation of a novel spacecraft attitude control actuator called the "Adaptive Singularity-free Control Moment Gyroscope" (ASCMG) is presented in this dissertation. To construct a comprehensive attitude dynamics model of a spacecraft with internal actuators, the dynamic of a spacecraft with an ASCMG is obtained in the framework of geometric mechanics using the principles of variational mechanics. The resulting dynamics is a general and complete model, as it relaxes the simplifying assumptions made in prior literature on Control Moment Gyroscopes (CMGs) and it also addresses the adaptive parameters in the dynamics formulation. The simplifying assumptions include perfect axisymmetry of the rotor and gimbal structures, perfect alignment of the centers of mass of the gimbal and the rotor, etc. These set of simplifying assumptions imposed on the design and dynamics of CMGs leads to adverse effects on their performance and results in high manufacturing cost. The dynamics so obtained shows the complex nonlinear coupling between the internal degrees of freedom associated with an ASCMG and the spacecraft bus's attitude motion. By default, an ASCMG function as a Variable Speed Control Moment Gyroscope (VSCMG), and it is reduced to operate as a singularity-free CMG by spinning the rotor at a constant speed. This dynamics model is then extended to include the effects of multiple ASCMGs placed on the spacecraft bus, and sufficient conditions for non-singular ASCMG cluster configurations are obtained to operate the cluster both in VSCMG and CMG modes. The general dynamics model of the ASCMG is then reduced to that of conventional VSCMGs and CMGs by imposing the standard set of simplifying assumptions used in prior literature. The adverse effects of the simplifying assumptions that lead to the complexities in conventional CMG design, and how they result in CMG singularities, are described.

Fundamentals of Spacecraft Attitude Determination and Control

Author : F. Landis Markley
Publisher : Springer
ISBN 13 : 1493908022
Total Pages : 486 pages
Book Rating : 4.4/5 (939 download)

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Book Synopsis Fundamentals of Spacecraft Attitude Determination and Control by : F. Landis Markley

Download or read book Fundamentals of Spacecraft Attitude Determination and Control written by F. Landis Markley and published by Springer. This book was released on 2014-05-31 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores topics that are central to the field of spacecraft attitude determination and control. The authors provide rigorous theoretical derivations of significant algorithms accompanied by a generous amount of qualitative discussions of the subject matter. The book documents the development of the important concepts and methods in a manner accessible to practicing engineers, graduate-level engineering students and applied mathematicians. It includes detailed examples from actual mission designs to help ease the transition from theory to practice and also provides prototype algorithms that are readily available on the author’s website. Subject matter includes both theoretical derivations and practical implementation of spacecraft attitude determination and control systems. It provides detailed derivations for attitude kinematics and dynamics and provides detailed description of the most widely used attitude parameterization, the quaternion. This title also provides a thorough treatise of attitude dynamics including Jacobian elliptical functions. It is the first known book to provide detailed derivations and explanations of state attitude determination and gives readers real-world examples from actual working spacecraft missions. The subject matter is chosen to fill the void of existing textbooks and treatises, especially in state and dynamics attitude determination. MATLAB code of all examples will be provided through an external website.

Combined attitude control and energy storage for small satellites using variable speed control moment gyroscopes

Author : David J. Richie
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Combined attitude control and energy storage for small satellites using variable speed control moment gyroscopes by : David J. Richie

Download or read book Combined attitude control and energy storage for small satellites using variable speed control moment gyroscopes written by David J. Richie and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Applied Mechanics, Mechatronics and Intelligent Systems - Proceedings of the 2015 International Conference (ammis2015)

Author : Shihong Qin
Publisher : World Scientific
ISBN 13 : 9814733873
Total Pages : 962 pages
Book Rating : 4.8/5 (147 download)

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Book Synopsis Applied Mechanics, Mechatronics and Intelligent Systems - Proceedings of the 2015 International Conference (ammis2015) by : Shihong Qin

Download or read book Applied Mechanics, Mechatronics and Intelligent Systems - Proceedings of the 2015 International Conference (ammis2015) written by Shihong Qin and published by World Scientific. This book was released on 2015-12-08 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of one hundred and twenty-five selected papers presented at the 2015 International Conference on Applied Mechanics, Mechatronics and Intelligent Systems (AMMIS2015), which was held in Nanjing, China during June 19-20, 2015.AMMIS2015 focuses on seven main areas, namely, applied mechanics, control and automation, intelligent systems, computer technology, electronics engineering, electrical engineering, and materials science and technology. Experts in this field from all over the world contributed to the collection of research results and development activities.AMMIS2015 provides an excellent international exchange platform for researchers to share their development works and results in these areas. All papers selected for this proceeding were subjected to a rigorous peer-review process.

Analytical Mechanics of Space Systems

Author : Hanspeter Schaub
Publisher : AIAA
ISBN 13 : 9781600860270
Total Pages : 744 pages
Book Rating : 4.8/5 (62 download)

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Book Synopsis Analytical Mechanics of Space Systems by : Hanspeter Schaub

Download or read book Analytical Mechanics of Space Systems written by Hanspeter Schaub and published by AIAA. This book was released on 2003 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Automatic Control in Aerospace 2004

Author : Alexander Nebylov
Publisher : Elsevier
ISBN 13 : 9780080440132
Total Pages : 776 pages
Book Rating : 4.4/5 (41 download)

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Book Synopsis Automatic Control in Aerospace 2004 by : Alexander Nebylov

Download or read book Automatic Control in Aerospace 2004 written by Alexander Nebylov and published by Elsevier. This book was released on 2005-10-03 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nonlinear Spacecraft Control with Applications to Combined Attitude and Energy Storage

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Nonlinear Spacecraft Control with Applications to Combined Attitude and Energy Storage by :

Download or read book Nonlinear Spacecraft Control with Applications to Combined Attitude and Energy Storage written by and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The period of performance for this research award was from August 2000 to January 2004. The main objective of this research was to support the Air Force efforts in the development of an Integrated Power and Attitude Controls System (IPACS) for spacecraft applications. An IPACS will combine the attitude control and power distribution subsystems onboard a spacecraft reducing the bus mass, and thus leading to increased payload. Several options for IPACS have been investigated in this work including clusters of momentum wheels and variable-speed control moment gyros. The latter seem to be ideally suited for IPACS applications since they naturally decompose the power storage/release function using the wheel acceleration, and the attitude control function using the gimbal acceleration. Consequently, the focus of this research has thus been confined to the use of VSCMG5. Several practical and theoretical issues were encountered and were successfully addressed.

Design and Global Analysis of Spacecraft Attitude Control Systems

Author : George Meyer
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Design and Global Analysis of Spacecraft Attitude Control Systems by : George Meyer

Download or read book Design and Global Analysis of Spacecraft Attitude Control Systems written by George Meyer and published by . This book was released on 1971 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Attitude Reacquisition of a Gravity-gradient Control-moment-gyro Stabilized Spacecraft

Author : Clark E. Stohl
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Attitude Reacquisition of a Gravity-gradient Control-moment-gyro Stabilized Spacecraft by : Clark E. Stohl

Download or read book Attitude Reacquisition of a Gravity-gradient Control-moment-gyro Stabilized Spacecraft written by Clark E. Stohl and published by . This book was released on 1970 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impulsive or time-decaying disturbances of sufficient magnitude will cause a gravitygradient control-moment-gyro stabilized spacecraft to tumble. A procedure for operating a thruster system by ground command to perform reacquisition was functionally designed and evaluated on an analog computer. When the disturbance has ceased, an on-board thruster system is used to aline the total angular momentum vector of the spacecraft in an orientation that allows the control-moment gyros to damp all spacecraft motion into a single axis. For a spacecraft in a Sun-synchronous orbit, a procedure was found to shorten the time for attitude reacquisition by using a solar array for crude attitude information.