Notice of Violation of IEEE Publication Principles: Modified intelligent fuzzy controller of tracking a Hard Disk Drive actuator using the approaching index switch

Notice of Violation of IEEE Publication Principles

"Modified Intelligent Fuzzy Controller of Tracking a Hard Disk Drive Actuator Using the Approach Index Switch"
by P. Selvakumar and T. Kannadasan
in the Proceedings of the International Conference on Industrial Electronics, Control and Robotics, December 2010, pp. 180-184

After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles.

This paper is a duplication of the original text from the paper cited below. The original text was copied without attribution (including appropriate references to the original author(s) and/or paper title) and without permission.

Due to the nature of this violation, reasonable effort should be made to remove all past references to this paper, and future references should be made to the following article:

"Intelligent Fuzzy Controller of Tracking a Hard Disk Drive Actuator Using the Approaching Index Switch"
by Ayman A. Aly and Shehab R. Tawfeic,
in the ASCE Journal, Vol. 5, Issue 2, June 2005, pp. 33-37


This paper uses a new switching control algorithm called the approaching index. A closed-loop index is designed to decide if the system is approaching the final destination or not. The index is used in the online switching rule to select the adequate controller output policy to be applied to the system during each control period. Here, it is allowed to switch between fuzzy logic control and the classical Proportional Derivative PD control. On the application side, as the need of high capacity, small size data storage devices is increasing, it is hardly needed to find controller performance able to meet the challenging specifications for Hard Disk Drives (HDD). The performance of the proposed switching control algorithm is illustrated using a model of a Voice-Coil-Motor (VCM) actuator of a HDD. The proposed controller shows much better performance than those of the PD controller. The resulting system has smaller rise time, minimal overshoot and faster settling time.