Low Frequency Vibration Detection and Compensation in Hard Disk Drive

2011 ◽  
Vol 47 (7) ◽  
pp. 1964-1969 ◽  
Author(s):  
Wen-Jun Cao ◽  
JianYi Wang ◽  
MingZhong Ding ◽  
Qiang Bi ◽  
KianKeong Ooi
Keyword(s):  
Hard Disk Drive ◽  
Low Frequency ◽  
Hard Disk ◽  
Disk Drive ◽  
Vibration Detection ◽  
Low Frequency Vibration

Dynamic Characteristics of Hard Disk Drive Spindle Motors—Comparison Between Ball Bearings and Hydrodynamic Bearings

1996 ◽  
Vol 118 (2) ◽  
pp. 402-406 ◽  
Author(s):  
C.-P. Roger Ku
Keyword(s):  
Hard Disk Drive ◽  
Data Storage ◽  
Dynamic Characteristics ◽  
Low Frequency ◽  
Hard Disk ◽  
Axial Direction ◽  
Disk Drive ◽  
Spindle Motor ◽  
Damping Capacity ◽  
Ball Bearings

Recently, many computer hard disk drive companies and spindle motor manufacturers have been looking for a substitute for ball bearings to continue making dramatic progress in increasing the capacity of data storage systems. In this paper, the frequency-forced responses of hard disk drive spindle motors supported by both ball bearings and liquid-lubricated spiral groove hearings (SGBs) were studied experimentally. It is found that both shaft rigidity and disk flexibility have great effects on the natural frequency of the spindle motor conical (rocking) mode. The high damping capacity of the SGB is able to suppress the vibration amplitudes of both motor rocking mode and the flexible disk modes. But at a very low frequency range, the SGB motors displayed a large amplitude in the axial direction vibration test. With an adequate bearing design, the SGB motors have proven their superior dynamic characteristics.

Hard disk drive failure prediction using SMART attribute

2021 ◽  
Author(s):  
Vikas Tomer ◽  
Vedna Sharma ◽  
Sonali Gupta ◽  
Devesh Pratap Singh
Keyword(s):  
Hard Disk Drive ◽  
Failure Prediction ◽  
Hard Disk ◽  
Disk Drive
Sign in / Sign up

Export Citation Format

Share Document