Vibration and noise generated by some computer hard disk drives of different speeds have been analyzed. The vibration natural frequencies of disk platters were computed theoretically and by FEM. These were also verified experimentally by modal testing. The first four natural frequencies of the disk
Modeling and Analysis of Piezo-Elastica Energy Harvester in Computer Hard Disk Drives
β Scribed by Jen-Yuan Chang
- Book ID
- 114654536
- Publisher
- IEEE
- Year
- 2011
- Tongue
- English
- Weight
- 909 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0018-9464
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π SIMILAR VOLUMES
The recording head in a hard disk drive (HDD) is supported by an actuator assembly which is being controlled by a servo system. Structural resonance modes in the actuator impact the performance of the servo system. The actuator rocking mode has been identified as a major contributor to seek settling
As the recording track density increases in hard-disk drives, the off-track error-rejection capability of the servo controller must also be increased. The high rejection capability is achieved by increasing the servo bandwidth; however, the ability to extend the bandwidth is limited by the actuator'