Design optimization of a nonlinear magnetic media system using finite element analysis and Taguchi method

This paper reports an application of the combined FEM analysis and Taguchi's DOE method to the parameter optimization of a magnetic recording media. Effects of a soft magnetic keeper layer on the performance of the magnetic recording media disk are analysed using FEM. Optimization of several key parameters using Taguchi method is performed to maximise the desirable characteristics which are brought about by this keeper layer. This application example shows that the combined approach is an effective and efficient tool for parameter optimization of a non-linear magnetic field system.