19 October 2016 Research on the flywheel components’ disturbance mechanism of a high resolution optical satellite
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Proceedings Volume 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation; 101540H (2016) https://doi.org/10.1117/12.2245668
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
According to the picture of a sub-meter resolution optical satellite acquired on the orbit, there is a phenomenon of jitter in the process of taking pictures. The flywheel as the main attitude control component of the satellite, the disturbance that it caused has great influence on the high resolution optical satellite in its normal action. This paper has respectively researched the flywheel components’ disturbance mechanism from three parts, including uneven rotator, rotator friction, bearing disturbance, builds the mathematics model of disturbance to analysis the characteristic of disturbance. we get that the vibration system is not a fully linear system, the system is linear before the occurrence of rubbing. It also can be seen that the system has a number of different cross rigidity, it will often appear unstable motion that resulting in damage, or becomes the ultimate destruction due to the role of nonlinear damping. When the rolling roll in the surface, it will produce an alternative excitation force if there exist defects or damage in the rolling surface. This research would offer guidance for system optimization design and vibrating isolation compensation of the later type of improved satellite.
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Li Lin, Li Lin, Wang Dong, Wang Dong, Zhou Sitong, Zhou Sitong, Luyang Tan, Luyang Tan, } "Research on the flywheel components’ disturbance mechanism of a high resolution optical satellite", Proc. SPIE 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation, 101540H (19 October 2016); doi: 10.1117/12.2245668; https://doi.org/10.1117/12.2245668
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