Modeling and robust H-infinite control of a novel non-contact ultra-quiet Stewart spacecraft

Xu, Yan; Liao, He; Liu, Lei; Wang, Yue

doi:10.1016/j.actaastro.2014.11.033

Cited by 43 publications

(13 citation statements)

References 21 publications

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“…The actuators and sensors are installed in a hexapod configuration. A possible noncontact actuator design could be noncontact voice coil actuator [20].…”

Section: Dfp System Description a Basic Configuration Of Dfp Sysmentioning

confidence: 99%

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Modeling and Pointing Performance Analysis of Disturbance-Free-Payload System With Flexible Umbilical Connection

Zhou

Wang

et al. 2019

IEEE Access

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Disturbance-Free-Payload is a novel spacecraft architecture proposed to achieve perfect vibration isolation performance of space applications. In this paper, the object under study is a DFP system in which a flexible umbilical connection between the support module (SM) and the payload module (PM) is introduced for data, power and fluid transfer. Bead model accounting for properties of mass and flexibility, is utilized to model the flexible umbilical. With incorporation of bead model, six degree-of-freedom multibody rigid-flexible dynamics for the DFP system is established via Newtonian mechanics. Along with rotational coupling between solar panels and SM, translational coupling, in particular, is taken into consideration since there is a stringent requirement on relative position between PM and SM. Based on the accurate motion equations of the DFP system, simulation studies are conducted to gain insight of the impact of umbilical connection and translational coupling on pointing performance of the DFP system. Simulation results validate effectiveness of DFP configuration in isolating vibrations transmitted from SM to PM. Besides, umbilical connection plays an important part in degrading pointing performance of PM whereas it exerts little impact on SM. Moreover, translational coupling leads to significant pointing performance degradation for both PM and SM.

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“…The actuators and sensors are installed in a hexapod configuration. A possible noncontact actuator design could be noncontact voice coil actuator [20].…”

Section: Dfp System Description a Basic Configuration Of Dfp Sysmentioning

confidence: 99%

“…Motion equations consisting of kinematic equations and dynamic equations for PM, SM and beads in Case 1 are given in (18), (19), (20), (21), (23) and (24). Simulation results associated with Case 1 are shown from Fig.…”

Section: A Casementioning

confidence: 99%

Modeling and Pointing Performance Analysis of Disturbance-Free-Payload System With Flexible Umbilical Connection

Zhou

Wang

et al. 2019

IEEE Access

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“…The upper and bottom parts are connected by six non-contact voice coil actuators. [20][21][22] The reaction wheels, solar panels, and thrusters are installed in the SM, while ultra-quiet devices and attitude sensors are installed in the PM.…”

Section: Configuration Descriptionmentioning

confidence: 99%

“…In contrast to other Stewart platforms, this king of non-contact architecture can suppress isolation down to 0 Hz. 21,22 One of the important problems of non-contact ultraquiet Stewart spacecraft in space application is the collision of non-contact voice coil actuators induced by the release of electromagnetic locking device after capturing the Earth. In this article, the equivalent collision modeling with a small releasing velocity and control algorithm to guarantee the collision rejection and the stability performance of non-contact ultra-quiet Stewart spacecraft were studied.…”

Section: Introductionmentioning

confidence: 99%

Collision modeling and two-echelon collaborative control of non-contact ultra-quiet Stewart spacecraft

Liao

et al. 2018

Advances in Mechanical Engineering

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This article presents the collision modeling and two-echelon collaborative control of a novel non-contact ultra-quiet Stewart spacecraft. It has internal instability because of its non-contact configuration. To overcome the instability, the equivalent modeling of repetitive collision process with small releasing velocity is established at first. Then, a two-echelon collaborative control is developed to guarantee both collision rejection and stability performance. Finally, the numerical simulation is conducted to demonstrate the validity and effectiveness of the proposed design.

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“…The research team in Shanghai Institute of Satellite Engineering proposed the novel concept of non‐contact ultra‐quiet satellite [6, 7]. This novel structure separates the payload module (PM) and the support module (SM) with VCA, completely isolates the vibration and provides an ultra‐quiet dynamical environment for payload.…”

Section: Introductionmentioning

confidence: 99%

Integrated structure and precision control of flat voice coil actuator for non‐contact satellite

Zhongxing¹,

Xu²,

Jiang

et al. 2019

J. eng.

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Modeling and robust H-infinite control of a novel non-contact ultra-quiet Stewart spacecraft

Cited by 43 publications

References 21 publications

Modeling and Pointing Performance Analysis of Disturbance-Free-Payload System With Flexible Umbilical Connection

Modeling and Pointing Performance Analysis of Disturbance-Free-Payload System With Flexible Umbilical Connection

Collision modeling and two-echelon collaborative control of non-contact ultra-quiet Stewart spacecraft

Integrated structure and precision control of flat voice coil actuator for non‐contact satellite

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