P-HDI-08 Identification of Stiffness and Damping in Collision of a Spherical Slider with a Magnetic Disk
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概要
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This paper deals with experimental identification of the stiffness and damping in dynamic collision between a slider and a magnetic disk whose substrate is Al and glass. The contact force and damping were identified so as to minimize root mean square value of error between the experimental data and the analytical results of a single DOF slider motion. From comparison of the six different damping force models, it is found that the contact force due to penetrating depth can be accurately estimated by Hertzian contact theory and that the damping force is proportional to velocity and contact area. The effective damping coefficient in repulsing process is more than two orders larger than that in penetrating process in an Al disk. The damping of glass disk is almost zero. The damping effect at collision is caused not by lubricant, but by the coated layer and the substrate material.
- 一般社団法人日本機械学会の論文
著者
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Ohara Satoshi
Department Of Mechanical And Control Engineering Tokyo Institute Of Technology
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Yamaura Hiroshi
Department Of Mechanical And Control Engineering School Of Engineering Tokyo Institute Of Technology
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Ono Kyosuke
Department Of Mechanical And Control Engineering Tokyo Institute Of Technology
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Ono Kyosuke
Department Of Mechanical And Control Engineering School Of Engineering Tokyo Institute Of Technology
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