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This paper presents the experimental observation results of contact-induced vibration (CIV) and its compensator design in dual-stage hard disk drive servo systems, where the vibration is caused by the continuous contact of read/write head and recording media. Consistent relationships between the center frequencies and magnitudes of the vibration modes and the tested fly height, rotation speed, and...
In this paper we address a surveillance task carried out by a single agent that is modeled as a disk. The surveillance problem can be formulated mathematically as a one-center disk-covering problem with the velocity control in which the center of the disk is adjusted continuously to cover a simply connected region for surveillance in R2. Different from existing methods that require the global environmental...
In this paper, we formulate and explore the characteristics of iterative learning in ballistic control problems. The ILC theory provides a suitable framework for derivations and analysis of ballistic control under learning process. To overcome the obstacles caused by uncertain gradient and redundant control input, we incorporate extra trials into iterative learning. With the help of trial results,...
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