Design and seek control of a disc drive actuator with nonlinear magnetic bias Conference Paper uri icon

abstract

  • The research investigates the design and performance capabilities of a voice-coil motor actuator (VCMA) for a disc drive with a nonlinear magnetic bias. A VCMA is designed to meet specific seek performance requirements. A nonlinear magnetic bias is independently designed to compensate for non-operational shock. A model-based adaptive controller was developed to meet the seek performance requirements and simultaneously handle effects of the nonlinear bias. The performance criteria was based on minimizing the time required for a seek maneuver without controller saturation. The proposed adaptive controller was compared to an often used linear state-feedback controller with the magnetic bias present. Simulations were conducted to verify the results.

name of conference

  • IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004

published proceedings

  • IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004

author list (cited authors)

  • Ratliff, R. T., & Pagilla, P. R.

citation count

  • 1

complete list of authors

  • Ratliff, RT||Pagilla, PR

publication date

  • January 2004

publisher