Abstract
This paper proposed a HDD seeking acoustic analysis method by vibro-acoustics simulation with component-mode synthesis method and verified by comparing simulation results with experiments. Acoustics portion in the developed model is defined as a set of acoustic transfer functions from HDD surface velocity to sound pressure for each component-mode. The component-mode is calculated with the finite element method and the acoustics model is calculated with the boundary element method, and a mode shape of the component-mode is translated into a sound source in the boundary element method. Simulation results were verified by using experimental results of seeking acoustics with a 2.5-inch drive. Sound pressures given by simulation matched well with experiments and the required number of component-modes for acoustics simulation stayed within one for dynamic simulation.
