Rapid Reorientation Maneuvers of Experimental Spacecraft with a Pendulum Appendage

Li, Feiyue; Bainum, Peter M.; Creamer, N. Glenn; Fisher, Shalom

doi:10.2514/2.4213

Cited by 8 publications

(4 citation statements)

References 4 publications

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“…More modest than ASTREX, this tabletop facility has nonetheless been used successfully in the experimental veri cation of nonlinear controls of rigid bodies with exible appendages. 42 RESHAPE has been used to verify the effectiveness of smart structuresand was used for early experimentalwork in GPS attitude determination techniques. 43 The Honeywell, Inc., Momentum Control System and Line of Sight (MCS/LOS) testbed, shown in Fig.…”

Section: ¡20mentioning

confidence: 99%

Historical Review of Air-Bearing Spacecraft Simulators

Schwartz¹,

Peck²,

Hall³

2003

Journal of Guidance, Control, and Dynamics

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An overview of air-bearing spacecraft simulators is provided. Air bearings have been used for satellite attitude determination and control hardware veri cation and software development for nearly 45 years. It is interesting to consider the history of this technology: how early systems were rst devised and what diverse capabilities current systems provide. First a survey is given of planar systems that give a payload freedom to translate and spin. Then several classes of rotational air bearings are discussed: those which simulate three-axis satellite attitude dynamics. The subsequent section discusses perhaps the most interesting facilities: those that provide both translational and three-dimensional rotational freedom. The diverse capabilities each style of air-bearing testbed provides, the many settings they can be found in, and ways to improve facility performance are described.

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Section: ¡20mentioning

confidence: 99%

Historical Review of Air-Bearing Spacecraft Simulators

Schwartz¹,

Peck²,

Hall³

2003

Journal of Guidance, Control, and Dynamics

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“…Rapid attitude maneuver experiments are carried out on the reconfigurable spacecraft host for attitude and pointing experiments facility with a flexible appendage at Naval Research Laboratory. 9 The appendage is represented by a pendulum vertically attached by a string to the edge of the platform. This attachment increases the order of the system by two dynamic degrees of freedom which represent flexible modes.…”

Section: Introductionmentioning

confidence: 99%

Experimental research for flexible satellite dynamic simulation on three-axis air-bearing table

Liu

Zhou

Chen

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part G:

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This article presents a flexible satellite dynamic simulation method on three-axis air-bearing table where large flexible structures are not easy to construct due to gravitational effects. In this simulation method, the flexible dynamic characteristic is achieved by actively exerting flexible emulation moments on the platform. First, the differences between the dynamic models of the rigid three-axis air-bearing table and flexible satellite are illustrated. Then, direct flexible dynamic emulation and model tracking simulation approaches are presented. The system characteristic and stability of these approaches are further analysed. Next, simulation experiments on a three-axis air-bearing table demonstrate the feasibility of the model tracking simulation strategy. Experimental results indicate that the prominent flexible dynamic features of the satellite are implemented on the simulation system. Therefore, this emulation scheme provides an optional approach for air-bearing tables to achieve flexible dynamic characteristic without real structure configuration.

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“…And, Ahmed and et al [4] studied on the gyro pendulum to eliminate the effects of mass imbalance in rotating bodies. Attitude control of spacecraft was addressed by Li and et al [5]. Except for KANKI, all these studies have not addressed on an attitude control but on a stabilization of the spacecraft.…”

Section: Introductionmentioning

confidence: 99%

Developing a Convenient Balance Beam for Unknown Loads

Yi¹,

Kim²,

Chung³

et al. 2004

Proceedings of the 21st International Symposium on Automation and Robotics in Construction

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Balance beam, a controller that is built adopting the gyro effect, can freely control the attitude of an unstructured object by means of the position controlling of an inner gimbal. However in the former research, the weight (inertia) of a load should be known to issue a proper command for the gimbal, which makes it hard to operate the balance beam in field applications because the load can be changed frequently and, moreover, the inertia of the same load could be different according to how the load is held. Therefore an accident could be caused by the operation with an improper gimbal command.One of the possible approaches to solve the problem is to give a balance beam controller an ability to detect the inertia of a load so that it can limit the velocity of the load ordered by a user. In this paper, we designed a controller that can estimate the inertia of the load based on the result we did before; the fact that when there is smaller inertia of load, the larger amount of the restoration displacement occurs. Thus, the load could be identified by issuing a predefined command to measure the amount of the restoration displacement, which makes us able to construct the controller that can limit the angular velocity of the load by planning the motion. Experimental results show the performance of the controller with some loads.

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Rapid Reorientation Maneuvers of Experimental Spacecraft with a Pendulum Appendage

Cited by 8 publications

References 4 publications

Historical Review of Air-Bearing Spacecraft Simulators

Historical Review of Air-Bearing Spacecraft Simulators

Experimental research for flexible satellite dynamic simulation on three-axis air-bearing table

Developing a Convenient Balance Beam for Unknown Loads

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