A new type of magnetic gimballed momentum wheel and its application to attitude control in space |
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| Authors: | C Murakami Y Ohkami O Okamoto A Nakajima M Inoue J Tsuchiya K Yabu-uchi S Akishita T Kida |
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| Institution: | National Aerospace Laboratory, Tokyo, Japan;Mitsubishi Electric Corporation, Central Research Laboratory, 8-1-1. Tsukaguchi, Amagasaki, Myogo, 661 Japan |
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| Abstract: | A new type of magnetically suspended gimbal momentum wheel utilizing permanent magnets is described. The bearing was composed of four independent thrust actuators which control the rotor thrust position and gimbal angles cooperatively, so that the bearing comes to have a simple mechanism with high reliability and light weight. The high speed instability problem due to the internal damping was easily overcome by introducing anisotropic radial stiffness. A momentum flywheel with the 3-axis controlled magnetic bearing displays good performance for attitude control of satellite with biased momentum. |
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