Attitude tracking control of flexible spacecraft with large amplitude slosh
| Autor: | Baozeng Yue, Mingle Deng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Propellant tank
Computer simulation Adaptive algorithm Spacecraft Computer science Slosh dynamics business.industry Mechanical Engineering Computational Mechanics 02 engineering and technology 01 natural sciences Sliding mode control 010305 fluids & plasmas Vibration Amplitude 020401 chemical engineering Control theory 0103 physical sciences 0204 chemical engineering business |
| Zdroj: | Acta Mechanica Sinica. 33:1095-1102 |
| ISSN: | 1614-3116 0567-7718 |
| DOI: | 10.1007/s10409-017-0700-9 |
| Popis: | This paper is focused on attitude tracking control of a spacecraft that is equipped with flexible appendage and partially filled liquid propellant tank. The large amplitude liquid slosh is included by using a moving pulsating ball model that is further improved to estimate the settling location of liquid in microgravity or a zero-g environment. The flexible appendage is modelled as a three-dimensional Bernoulli–Euler beam, and the assumed modal method is employed. A hybrid controller that combines sliding mode control with an adaptive algorithm is designed for spacecraft to perform attitude tracking. The proposed controller has proved to be asymptotically stable. A nonlinear model for the overall coupled system including spacecraft attitude dynamics, liquid slosh, structural vibration and control action is established. Numerical simulation results are presented to show the dynamic behaviors of the coupled system and to verify the effectiveness of the control approach when the spacecraft undergoes the disturbance produced by large amplitude slosh and appendage vibration. Lastly, the designed adaptive algorithm is found to be effective to improve the precision of attitude tracking. |
| Databáze: | OpenAIRE |
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