Disk drive apparatus, attachment structure, and attachment method
US6327115A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1995 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Oct 10, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An attachment structure and method for a disk drive apparatus for making the coupling resonance frequency of a hard disk drive the same whether one disk is loaded or a plurality of disks are loaded based upon parameters obtained from a simulation model. The modeling of a coupling vibration for one disk and for two disks is performed using a coupling vibration model of a linear two degree-of-freedom system. The component parts of a spindle motor providing a spring constant K.sub.p are adjusted so that the resonance frequency determined by coupling that of a spindle motor with that of the disk(s) is made much the same whether one disk or two disks are loaded. This adjustment enables stable track following to be secured without the need for adding dummy disks and other parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.