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http://dx.doi.org/10.5050/KSNVN.2004.14.3.201

Reduction of Disk Vibration and PES Using a Disk Damper  

권정민 (성균관대학교 대학원 기계공학)
강성우 (삼성종합기술원)
한윤식 (삼성종합기술원)
황태연 (삼성종합기술원)
구자춘 (성균관대학교 기계공학부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.14, no.3, 2004 , pp. 201-207 More about this Journal
Abstract
High speed rotating airflow inside a HDD chamber causes sub-micron scale disk vibration that could generate significant TMR problems in most of current HDD products. Many publications are presented for the reduction of airflow excitation. One of the most effective methods widely adopted in high-end HDD products is SqueezeAir Bearing Plate (SABP). However, because of its tight assembly clearance between the damper and disk, this method could not be easily implemented in volume production. This article presents a disk damper design that is modified to be feasible for volume production by virtue of a new airflow modeling method.
Keywords
Hard Disk Drive(HDD); PES(position error signal); LES(lager eddy simulation); Disk Flutter; Disk Damper; Squeeze Air Bearing;
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