Disk drive system, process and components thereof for improved disk stiffness
Patent
Overview
Overview
abstract
A disk drive system includes a disk having a stiffening structure for improved vibration resistance. The stiffening structure is configured to improve stiffness and vibration resistance with respect to the (0,1), (0,2) and (1,1) vibration modes. The stiffening structure includes a rib-stiffening structure composed of a framework of interconnected ribs. The framework includes a plurality of concentric annular ribs and a plurality of radially spaced, radial ribs. One or more annular ribs are disposed at one or more locations along the radial dimension of the disk at which nodes of annular vibrations occur. Also, one or more radial ribs are disposed at one or more locations around annular dimension of the disk at which nodes of radial vibrations occur. The stiffening structure is disposed within a substrate layer of the disk during manufacture of the disk structure.
