Unstable Vibration of Head Assembly in FDD Unit : Experimental

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概要

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• Unstable vibration of the head assembly in flexible disk drives (FDD) induces read and write errors, and it decreases the life expectancy of the magnetic memory. This study experimentally analyzes the unstable Vibration using an FDD unit modified to rotate at variable speeds. The unstable vibration of the disk is measured by a non-contact photosensor. The head vibrates in a pitching mode and the disk vibrates toward the head in a wave-train mode ; these modes are coupled. Instability occurs only within a certain speed range, and the frequency of unstable vibration increases as rotational speed increases.

• 社団法人日本機械学会の論文
• 1991-06-15

著者

• Kohno Takashi

  Mechanical Engineering Research Laboratory Hitachi Ltd

• MATSUSHITA Osami

  Tsuchiura Works, Hitachi, Ltd.

• TERAYAMA Takao

  Mechanical Engineering Research Laboratory, Hitachi, Ltd

• NEMOTO Yasuhiro

  Mechanical Engineering Research Laboratory, Hitachi, Ltd

• Terayama Takao

  Mechanical Engineering Research Laboratory Hitachi Ltd

• Matsushita Osami

  Tsuchiura Works Hitachi Ltd.

• Nemoto Yasuhiro

  Mechanical Engineering Research Lab. Hitachi Ltd.

• Nemoto Yasuhiro

  Mechanical Engineering Research Laboratory Hitachi Ltd

• Terayama Takao

  Mechanical Engineering Resarch Laboratory Hitachi Ltd.

関連論文

• Unstable Vibration of Head Assembly in FDD Unit : Experimental
• A Study on the Path of an Upper-Body Support Arm Used for Assisting Standing-Up and Sitting-Down Motion
• Contact Analysis Between Magnetic Heads and Magnetic Tapes of Video Cassette Recorders : (Analysis with Infinite-Width Heads)
• Study on Head-tape Interference in VCR's

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