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Adopting magnetic levitation techniques in Steel Processing Industries is a beneficial way in maintaining the high quality of steel's surfaces. However, the control for levitation and guidance is not so easy, because of difficulties in mechanical and magnetic characteristics of steel, especially in those of thin steel plates. We have already established the stable magnetic levitation and guidance...
In this paper, a new precise positioning control of a Linear Induction Motor (LIM) system guided by a linear ball bearing system is proposed. A coarse drive force resolution and slow response of the LIM can be overcome by a special control algorithm utilizing spring behaviors of the guide mechanism, therefore, the preciseness of positioning is effectively improved. Our proposed new control is a combination...
During an elevator emergency stop device operation, a large deceleration is generated at the elevator cage. Passengers in the elevator cage sometimes get injured, because they suffer impact force from the elevator emergency stop device. (Refer to [1] and [2].) Therefore, the authors focused on the passengers' safety in elevators and proposed an emergency stop device with a spring and a magnetic rheological...
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