{"title":"Flexible support mechanism for hard disk drives","authors":"Y. Matsuda, Shigeo Nakamura, M. Sega, Y. Katou","doi":"10.1109/APMRC.2009.4925374","DOIUrl":null,"url":null,"abstract":"A flexible support mechanism for hard-disk drives (HDDs) was devised, prototyped, and evaluated. The flexible support mechanism intercepts the external vibration of a lower frequency than its natural frequency; therefore vibration disturbance in the HDD decreased. Moreover, the resonance frequency of an HDD with a flexible support mechanism is lower than that of an HDD without the mechanism. The servo compensation ratio of HDDs is larger at a lower frequency band. The flexible support mechanism has a high interception ratio to the external disturbance in an HDD by these reasons. It is possible therefore to reduce the head-positioning error (HPE) of an HDD by applying this flexible support structure. The data-transfer rate of an HDD decreases when the HPE increases because a longer read/write time is required. Since applying a flexible support mechanism reduces the HPE, degradation of the read/write performance by vibration disturbance can be prevented. An HDD with the prototyped flexible support mechanism exhibited twice the power-proof than an HDD without the mechanism.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 Asia-Pacific Magnetic Recording Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APMRC.2009.4925374","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A flexible support mechanism for hard-disk drives (HDDs) was devised, prototyped, and evaluated. The flexible support mechanism intercepts the external vibration of a lower frequency than its natural frequency; therefore vibration disturbance in the HDD decreased. Moreover, the resonance frequency of an HDD with a flexible support mechanism is lower than that of an HDD without the mechanism. The servo compensation ratio of HDDs is larger at a lower frequency band. The flexible support mechanism has a high interception ratio to the external disturbance in an HDD by these reasons. It is possible therefore to reduce the head-positioning error (HPE) of an HDD by applying this flexible support structure. The data-transfer rate of an HDD decreases when the HPE increases because a longer read/write time is required. Since applying a flexible support mechanism reduces the HPE, degradation of the read/write performance by vibration disturbance can be prevented. An HDD with the prototyped flexible support mechanism exhibited twice the power-proof than an HDD without the mechanism.
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