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Performance control of a tape transport mechanism using entire eigenstructure assignment

Moradi, H ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1115/IMECE2009-11200
  3. Abstract:
  4. To achieve high rate of data transfer, tape mechanisms must be able to transport the tape with a constant velocity for scanning. During this process, it is desired to make the rise time minimized without timing and data transfer errors. In this paper, three servo systems including the take-up and supply reel servos for tape tension control and capstan servo for speed control are considered. So, tape transport mechanisms can be described with a nonlinear multi-input multi-output system (MIMO). After state-space representation of the problem, feedback control is designed for tracking objective. It should be mentioned that an increase in the speed of time response of system corresponds to an increase in the control signal and leads to additional cost. So, the eigenvalues and eigenvectors are chosen optimally until an appropriate response is achieved while the gains of feedback matrix remain small simultaneously
  5. Keywords:
  6. MIMO system ; Tension control ; Data transfer ; Decoding ; Eigenvalues and eigenfunctions ; Feedback ; Feedback control ; Mechanical engineering ; MIMO systems ; Servomotors ; Speed ; Speed control ; Speed regulators ; State feedback ; Additional costs ; Constant velocities ; Control signal ; Eigenstructure assignment ; Eigenvalues and eigenvectors ; Entire eigenstructure assignment ; Feedback matrices ; High rate ; Multi-input multi-output systems ; Performance control ; Risetimes ; Servo system ; State space representation ; Tape transport ; Tension controls ; Time response ; Robustness (control systems)
  7. Source: ASME International Mechanical Engineering Congress and Exposition, Proceedings, 13 November 2009 through 19 November 2009 ; Volume 10, Issue PART A , 2010 , Pages 133-140 ; 9780791843833 (ISBN)
  8. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1641641