| Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2016: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
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| Outline of Final Research Achievements |
In this study, in order to improve the fault tolerance of adaptive skew control moment gyroscope (ASCMG), an adjustment control method has been proposed, which can identify a fault CMG unit and smoothly switch the steering control laws. It is shown through numerical simulations that the fault CMG unit can be identified by integrating and evaluating the difference between the commanded torque and the actual output torque for a fixed time, and that the attitude can be stabilized to the target attitude by the proposed adjustment method in which the steering control laws are smoothly switched according to the fault identification. In addition, it has been verified through experiments under a microgravity condition that line-of-sight attitude maneuver can be achieved by a backstepping-based steering control law even in the case of two-CMG units failure.
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