Integrated Design for Contact-Sliding Head of Magnetic Recording Systems : Simultaneous Optimization on Structure and Controller for Regulating the Contact Force

Abstract

A new type of hard disk system will be put into commercial use in the near future. One point of the system is to keep the contact force between the magnetic head and the moving disk as small as possible. The purpose of this work was to design a structure and controller of the contact-sliding head of magnetic recording systems. We have proposed a new method called a "integrated design", for simultaneous optimization of the parameters of the structure and controller. A numerical example for design of the control system of a magnetic recording system is given to illustrate the effectiveness of the proposed iterative algorithm.