コンテンツメニュー

Shock-proof design of head disk assembly subjected to impulsive excitation

JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing Volume 38 Issue 3 Page 411-419
published_at 1995
2010010212.pdf
[fulltext] 541 KB
Title
Shock-proof design of head disk assembly subjected to impulsive excitation
Creators Jiang Zhongwei
Creators Takashima Kazu
Creators Chonan Seiji
Creator Keywords
vibration of rotating body transient response natural frequency head disk assembly half-sine shock pulse shock-proof design galerkin method newmark β method
This paper reports a study on the transient response of a head disk assembly (HDA) subjected to a half-sine shock pulse in the axial and pitching directions. The solution is obtained using the multi-modal expansion approximation and applying the Galerkin method to the resulting equations. Numerical results are obtained by the Newmark β method for a 3.5" hard disk-head system. It is found that the relative distance between the head and the disk reduces to the minimum when the input duration τ is about 1. 5 times the natural half-period of the fundamental (0, 0) mode. Results obtained also show that the shock-proof head satisfies (1/2π) (k/m)1/2=f00, where k is the stiffness of the head arm, m the head mass and f00 the (0, 0) mode frequency of the rotating disk, and that the head slider should be designed so that the assembled system of the head and the disk has a high air-film stiffness.
Languages eng
Resource Type journal article
Publishers 日本機械学会
Date Issued 1995
Rights
Copyright: 日本機械学会(The Japan Society of Mechanical Engineers)()
File Version Version of Record
Access Rights open access
Relations
[ISSN]1340-8062
[NCID]AA10898309
[isVersionOf] [URI]http://www.jstage.jst.go.jp/browse/jsmec/-char/ja/
Schools 大学院理工学研究科(工学)