FINITE ELEMENT ANALYSIS OF FLEXURAL VIBRATIONS IN HARD DISK DRIVE SPINDLE SYSTEMS

✍ Scribed by SEUNGCHUL LIM

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 247 KB
• Volume: 233
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1999.2842

✦ Synopsis

This paper is concerned with the #exural vibration analysis of the hard disk drive (HDD) spindle system by means of the "nite element method. In contrast to previous research, every system component is here analytically modelled taking into account its structural #exibility and also the centrifugal e!ect particularly on the disk. To prove the e!ectiveness and accuracy of the formulated models, commercial HDD systems with two and three identical disks are selected as examples. Then their major natural modes are computed with only a small number of element meshes as the shaft rotational speed is varied, and subsequently compared with the existing numerical results obtained using other methods and newly acquired experimental ones. Based on such a series of studies, the proposed method can be concluded as a very promising tool for the design of HDDs and various other highperformance computer disk drives such as #oppy disk drives, CD ROM drives, and their variations having spindle mechanisms similar to those of HDDs.