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Method using double thruster firings to deadbeat flexible solar array structural oscillations
Method using double thruster firings to deadbeat flexible solar array structural oscillations
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机译:使用双推进器点火来无节拍的柔性太阳能电池阵列结构振动的方法
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摘要
A spacecraft includes a plurality of thrusters mounted at predetermined locations on a spacecraft structure, individual ones the plurality of thrusters being fired for generating a torque about a desired axis. The firing of a thruster is partitioned into two firings that are offset in time by an amount t, wherein t=(1/2). times. (1/F)SF, where F is a dominant modal frequency, in Hertz, for any particular axis (nominally the 1st mode) of the spacecraft structure, and where SF is a scale factor that is adjustable about the frequency. In a presently preferred embodiment the thruster is a low thrust thruster that is mounted on a solar array panel, and the thrusters are fired in pairs.
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