SSPS Dynamic Modeling and the Flexible Vibration Suppression

Ran Wang; Hao Tian; Hong Liu Wang; Yang Zhao; Chen Yang; Xin Bin Hou

doi:10.4028/www.scientific.net/AMM.799-800.724

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 799-800SSPS Dynamic Modeling and the Flexible Vibration...

SSPS Dynamic Modeling and the Flexible Vibration Suppression

Abstract:

Space solar power satellite (SSPS) as a very large flexible spacecraft structure with complex configuration, large size and number of units bring the difficulties to dynamics modeling and analysis. Considering SSPS structure characteristics, equivalent strain and kinetic energy theory is adopted to establish the equivalent beam model of SSPS truss structure. The assumed mode method is adopted to describe the flexible body. The modal truncation method implements the dynamics system order reduction. Mixed coordinates method is adopted to establish the rigid-flexible coupled dynamic model. The established dynamic model can reflect dynamic characteristics of SSPS, achieve control requirements for SSPS and decrease the workload of simulation calculation. The independent modal space control (IMSC) method is proposed to active control research view of the large displacement, nonlinearity, low and dense mode frequency, light damping of flexible structures. Simulation results on flexible solar array show the effectiveness of the control method.

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Periodical:

Applied Mechanics and Materials (Volumes 799-800)

Pages:

724-727

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.799-800.724

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Online since:

October 2015

Authors:

Ran Wang, Hao Tian*, Hong Liu Wang, Yang Zhao, Chen Yang, Xin Bin Hou

Keywords:

Dynamic Modeling, Energy Equivalence Principle, Independent Modal Space Control, Space Solar Power Satellites

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* - Corresponding Author

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