Synthesis of the multi-step straightness control system for shaft straightening processes

Seung Cheol Kim, Sung-Chong Chung

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

In order to minimize straightness error of deflected shafts, a multi-step straightness control (MSSC) system is studied. A three-point bending and a multi-step straightening process have been developed for the MSSC. Load-deflection model of beams, on-line identification of variations in material properties, on-line springback prediction, and real-time hydraulic control methodology are studied for the three-point bending processes. Selection of a straightening point and direction, desired permanent deflection, and supporting condition are derived from deflection pattern analysis and fuzzy self-learning method in the multi-step straightening process. An automatic straightening machine has been fabricated for rack bars by using the developed ideas. Validity of the proposed system has been verified through experiments.

Original languageEnglish
Pages (from-to)139-156
Number of pages18
JournalMechatronics
Volume12
Issue number1
DOIs
StatePublished - 2002 Feb 1

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Straightening
Control systems
Straightening machines
Materials properties
Identification (control systems)
Hydraulics
Experiments

Keywords

  • Fuzzy self-learning
  • Multi-step straightening
  • Multi-step straightness control
  • Shaft straightening
  • Springback
  • Three-point bending

Cite this

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Synthesis of the multi-step straightness control system for shaft straightening processes. / Kim, Seung Cheol; Chung, Sung-Chong.

In: Mechatronics, Vol. 12, No. 1, 01.02.2002, p. 139-156.

Research output: Contribution to journalArticle

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