Dynamic Influence of Propellant Sloshing Estimation Using Hybrid: Mechanical Analogy and CFD
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概要
- 論文の詳細を見る
Liquid propellant sloshing, which induces perturbations to dynamic behavior of spacecraft, is a serious problem. This paper proposes an approach based on equivalent mechanics theory and Computational Fluid Dynamics (CFD) technology to estimate the dynamic influence of propellant sloshing on spacecraft. A mechanical model was built by CFD technique and packed as a “sloshing” block utilized in the spacecraft Guidance Navigation and Control (GNC) simulation loop. The block takes the motion characteristics of the spacecraft as inputs and outputs perturbative force and torques induced by propellant sloshing. It is more convenient to utilize in analysis of the coupling effect between propellant sloshing dynamics and spacecraft GNC than CFD packages directly. A validation case is taken to validate the accuracy and the superiority of the approach. The deducing process is applied to practical cases, and the simulation results are presented to demonstrate the proposed approach is efficient in identifying the problems induced by sloshing and evaluating effectiveness of several typical schemes for suppressing sloshing.
- 社団法人 日本航空宇宙学会の論文
- 2009-11-04
著者
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QI Naiming
Department of Aerospace Engineering, Harbin Institute of Technology
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WANG Xianlu
Department of Aerospace Engineering, Harbin Institute of Technology
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Qi Naiming
Department Of Aerospace Engineering Harbin Institute Of Technology
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Wang Xianlu
Department Of Aerospace Engineering Harbin Institute Of Technology
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Dong Kai
Department Of Aerospace Engineering Harbin Institute Of Technology
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CHEN Jiabao
Department of Aerospace Engineering, Harbin Institute of Technology
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Chen Jiabao
Department Of Aerospace Engineering Harbin Institute Of Technology
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Qi Naiming
Dep. Of Aerospace Engineering Harbin Inst. Of Technol.
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Wang Xianlu
Dep. Of Aerospace Engineering Harbin Inst. Of Technol.
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