축교정을 위한 기하학적 진직도 적응제어기 설계

DOI QR코드

DOI QR Code

김승철;정성종
Kim, Seung-Cheol;Jeong, Seong-Jong

  • 발행 : 2000.10.01

초록

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

키워드

축교정;스프링백;3점굽힘;다단계교정;퍼지자기학습;기하학적 적응제어

참고문헌

  1. Herbert, E. and Merrit, 1967, 'Hydraulic Control System,' John Wiley & Sons
  2. Shihuang, Shao, 1988, 'Fuzzy Self-Organization Controller and Its application for Dynamic Processes,' Fuzzy Sets and Systems, Vol. 26, pp. 151-164 https://doi.org/10.1016/0165-0114(88)90205-9
  3. Chandra, A., 1987, 'Real-Time identification and Control of Springback ion Sheet Metal Forming,' ASME Journal of Engineering for Industry, Vol. 109, pp. 265-273
  4. Katoh, T. and Urata, E., 1993, 'Measurement and Control of a Straightening Process for Seamless Pipes,' ASME Journal of Engineering for Industry, Vol. 115, pp. 347-351
  5. Hardt, D. E. and Roberts, M. A. and Stelson, K. A., 1982, 'Closed -Loop Shape Control of a Roll-Bending Process,' ASME Journal of Engineering for Industry, Vol. 104, pp. 317-322
  6. Hardt, D. E. and Chen, B., 1985, 'Control of a Sequential Brakeforming Process,' ASME Journal of Engineering for Industry, Vol. 107, pp. 141-145
  7. Partzel, K. H., 1988, 'Acoustic Emission for Crack Inspection During Fully Automatic and Manual Straightening of Transmission Shaft,' in Proceedings of the Acoustic Emission Symposium (Bad Nauheim), J. Eisenblatter, Ed., Deutsche gesellschaft fur Metallkunde, pp. 157-164
  8. Trostmann, E. and Hanse, N. and Cook, G., 1982, 'General Scheme for Automatic Control of Continuous Bending of Beams,' ASME Journal of Dynamic Systems, Measurement , and Control, Vol. 104, pp. 173-179
  9. 안중용, 안동철, 김승철, 정성종, 1996, '스프링 백 관측기를 이용한 축교정기 개발,' 한국공작 기계기술학회지, 제5권, 제3호, pp. 22-30