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Design and Simulation of Double-input Shaper for Suppressing Residual Vibration after Attitude Adjustment of Solar Array
ZHU Chun-yan;SHAO Ji-ming;TANG Guo-an
2011, 31 (6):
1-4.
DOI: 10.3969/j.issn.1006-1355-2011.06.001
The kinematic equations of a solar array are built in a non-inertia coordinate system and the double-input shapers based on continuous transfer function are designed and further applied to suppressing the residual vibration of the solar array in two rotation axes. Both rotation input signals are shaped respectively. Design parameters of the input shapers only depend on the natural vibration characteristic of the structural system including the natural frequencies, the damping ratio, the mass matrix and the modal vector. A finite element model is developed to simulate the dynamics response of the solar array in two rotation axes. Through the simulation, it is verified that the shaped rotation input signals to drive the attitude adjustment of the solar array can effectively suppress the residual vibration and the solar array has a good robust performance even if the parameters of the structure are not valued exactly.
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