A NEW DYNAMIC MODELLING OF THE MAGNETIC TAPE RECORDING SYSTEM

A new dynamic modelling of the tape vibration in a magnetic recording system is proposed by the concept that the length of the magnetic tape is divided into the entrance, head–tape coupling and exit regions. The main contribution of this paper is that the curvature effect of circular arc of the magnetic head is introduced in the dynamic formulation of the head–tape coupling region. The new separation spacing between the head and tape is defined. The steady state separation spacing and pressure distribution of foil film are compared for various curvatures of the magnetic head shape.