FEA simulation vibration of head gimbals assembly

Abstract

In this paper, an analysis of vibration of head gimbals assembly (HGA) in hard disk drive (HDD) with
operational HDD are studied. ANSYS is used for the finite element (FE) modeling and simulation. The FE
model is verified by conducting a modal analysis of HGA. Resonant frequencies are compared with the Modal
testing from Scanning Laser Doppler Vibrometer (LDV) results. The results of the natural frequencies and
mode shape from both finite elements analysis (FEA) and SLDV show a good agreement and this information
can also be used to further study the vibrations of Head Stack Assembly (HSA) and to develop the finite
element model of HGA.