Electromagnetic Formation Flight Dynamics Including Reaction Wheel Gyroscopic Stiffening Effects

Elias, Laila Mireille; Kwon, Daniel W.; Sedwick, Raymond J.; Miller, David W.

doi:10.2514/1.18679

Cited by 65 publications

(25 citation statements)

References 1 publication

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“…The equivalent circuit could be simplified as one resistor connected in series with an inductance and an ideal voltage source. The equation for describing this circuit under a variation field is (4) Where is the number of the coil;…”

Section: Acceleration Achieved By Magnetic Drivingmentioning

confidence: 99%

“…Using variation field to control the MD is a unique technique that would prevent spacecrafts from interfering with earth natural magnetic fields [9]. Because of superconductor coil, is extremely small so that only inductance component remained in the (4). To satisfy the extremely low condition in a closed circuit, superconducting joints are recommended [10], although resistance of normal joints between Bi2223 tapes is small enough [11].…”

Section: Acceleration Achieved By Magnetic Drivingmentioning

confidence: 99%

“…Similar hope is also held in the magnetic driving (MD) spacecraft. First attempt was proposed by Massachusetts Institute of Technology (MIT) researchers in 2005 [4] for electromagnetic formation flying(EMFF), where more than one satel- Manuscript lites can regulate their positions and attitudes by the magnetic fields generated by HTS coils. The principle of the EMFF is easy to understand, however only becomes more realistic than ever with the advent of HTS materials, especially its industrialization after 1998.…”

Section: Introductionmentioning

confidence: 99%

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Design of HTS Coil for Magnetic Driving Spacecraft

Zou

et al. 2010

IEEE Trans. Appl. Supercond.

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An experiment testbed aiming to demonstrate the principle of the magnetic driving (MD) spacecrafts was successfully constructed in 2008. Orthogonal Bi2223 coils provide magnetic fields to attract, repel and rotate two 50 kg vehicles in an air pressured platform. Technique details of the testbed in association with the coil design and fabrication are briefly introduced. More details focused on two conceptual designs, which support the use of MD in the future space missions. First, the acceleration between two vehicles, which is a main parameter to evaluate the efficiency of MD is calculated. An optimal coil radius is obtained for such structure that Bi2223 coils are cooled by a passive radiative cooler whose weight is approximately proportional to the coil radius. Second, an active-passive shielding system (APSS) is proposed to protect the onboard instruments which are sensitive to the magnetic field. The basic unit of the APSS is closed HTS coils, which can resist flux variation. The shielding ability of the APSS is discussed by using both theoretical and Finite Element Analysis.

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Section: Acceleration Achieved By Magnetic Drivingmentioning

confidence: 99%

Section: Acceleration Achieved By Magnetic Drivingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design of HTS Coil for Magnetic Driving Spacecraft

Zou

et al. 2010

IEEE Trans. Appl. Supercond.

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“…Most pioneering research works on EMFF were conducted by the MIT Space Systems Lab and the University of Tokyo [1][2][3][4][5][6] . These studies focused on the benefits, challenges, dynamics, magnetic dipole determination and hardware technology associated with experimental results.…”

Section: Introductionmentioning

confidence: 99%

An LMI-based decoupling control for electromagnetic formation flight

Huang

Zhang

et al. 2015

Chinese Journal of Aeronautics

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Electromagnetic formation flight (EMFF) leverages electromagnetic force to control the relative position of satellites. EMFF offers a promising alternative to traditional propellant-based spacecraft flight formation. This novel strategy is very attractive since it does not consume fuel. Due to the highly coupled nonlinearity of electromagnetic force, it is difficult to individually design a controller for one satellite without considering others, which poses challenges to communications. This paper is devoted to decoupling control of EMFF, including regulations, constraints and controller design. A learning-based adaptive sliding mode decoupling controller is analyzed to illustrate the problem of existing results, and input rate saturation is introduced to guarantee the validity of frequency division technique. Through transformation, the imposed input rate saturation is converted to state and input constraints. A linear matrix inequalities (LMI)-based robust optimal control method can then be used and improved to solve the transformed problem. Simulation results are presented to demonstrate the effectiveness of the proposed decoupling control.

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“…Ahsun and Miller [3] have presented a hybrid adaptive control scheme in which translation control is implemented in a centralized fashion with a decentralized attitude control. Elias et al [12] designed a linear optimal controller based on the linearized dynamics. Kong et al [13] addressed the use of electromagnetic dipoles for relative position and orientation maintenance as needed for the terrestrial planet finder (TPF).…”

Section: Introductionmentioning

confidence: 99%

Adaptive Terminal Sliding Mode Control of Electromagnetic Spacecraft Formation Flying in Near-Earth Orbits

Zhang

Yuan

Jiang

et al. 2014

Advances in Mechanical Engineering

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An adaptive terminal sliding mode control for six-degree-of-freedom electromagnetic spacecraft formation flying (EMFF) in nearEarth orbits is presented. By using terminal sliding mode (TSM) technique, the output tracking error can converge to zero in finite time, and strong robustness with respect to disturbance forces can be guaranteed. Based on a rotated frame and the adaptive TSM controller, the special magnetic moment of the steerable magnetic dipole is computed. The angular momentum management strategy (AMM) is implemented in a periodically switching fashion, by which the angular momentum buildup was limited. Illustrative simulations of EMFF are conducted to verify the effectiveness of the proposed controller.

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Electromagnetic Formation Flight Dynamics Including Reaction Wheel Gyroscopic Stiffening Effects

Cited by 65 publications

References 1 publication

Design of HTS Coil for Magnetic Driving Spacecraft

Design of HTS Coil for Magnetic Driving Spacecraft

An LMI-based decoupling control for electromagnetic formation flight

Adaptive Terminal Sliding Mode Control of Electromagnetic Spacecraft Formation Flying in Near-Earth Orbits

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