Experimental Results of Adaptive Periodic Disturbance Cancellation in a High Performance Magnetic Disk Drive-Reference-Cited by-同舟云学术

Experimental Results of Adaptive Periodic Disturbance Cancellation in a High Performance Magnetic Disk Drive

Published:1996-09-01 Issue:3 Volume:118 Page:416-424
ISSN:0022-0434
Container-title:Journal of Dynamic Systems, Measurement, and Control
language:en
Short-container-title:

Author:

Sacks Alexei¹,Bodson Marc¹,Khosla Pradeep¹

Affiliation:

1. Data Storage Systems Center, Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA 15213-3890

Abstract

This paper considers the implementation of an adaptive algorithm for periodic disturbance cancellation. It is shown that the maximum rate of adaptation can be calculated precisely based on measurements of the system’s frequency response. The response of the closed-loop system to additional disturbances can also be computed on that basis. The results are verified experimentally on a high track density magnetic disk drive. Excellent matching between the theoretical and experimental results is observed. An improved method is also proposed that leads to faster convergence of the adaptive algorithm and better disturbance rejection capabilities. The results of this paper significantly enhance the ability of the control engineer to design and analyze adaptive feedforward algorithms for a variety of applications where periodic disturbances are encountered.

Publisher

ASME International

Subject

Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering

Link

http://asmedigitalcollection.asme.org/dynamicsystems/article-pdf/118/3/416/5484751/416_1.pdf

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