Title :
Dynamic Force Measurement of a Head Arm Assembly of a Hard Disk Drive by Numerical Analysis and Experiments
Author :
Gu, Bin ; Shu, Dongwei ; Fujii, Yusaku ; Shi, Baojun
Author_Institution :
Sch. of Mech. & Aerosp. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
In this paper, dynamic forces of a head arm assembly (HAA) of a hard disk drive (HDD) against an impact load and in free oscillation after an impact load are obtained by means of finite element analysis (FEA) and by carrying out experiments using a modified levitation mass method (LMM). A good correlation between the experimental and numerical results is achieved. The effectiveness of both FE simulation and LMM method in measuring the minute dynamic forces involved in HDDs is evaluated.
Keywords :
disc drives; force measurement; hard discs; FEA; dynamic force measurement; finite element analysis; hard disk drive; head arm assembly; impact load; modified levitation mass method; numerical analysis; Acoustic measurements; Aerodynamics; Assembly; Electric shock; Finite element methods; Force measurement; Hard disks; Levitation; Magnetic heads; Numerical analysis; Dynamic force; finite element; hard disk drive (HDD); levitation mass method (LMM);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2029598
