Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Process Design of Conical Roll-Shaping for Fabrication of Variable Curvature Spiral Blade

가변곡률을 가진 나선형 블레이드 제작을 위한 원추형 롤 성형 공정설계

  • Yang, Sungmoon (Graduate School of Mechanical Engineering, Pusan National University) ;
  • Shim, Dosik (Green Manufacturing Process R&D Group, Korea Institute of Industrial Technology) ;
  • Ji, Hoseong (School of Mechanical Engineering, MEMS Technology Centre, Pusan National University) ;
  • Baek, Joonho (Department of Engineering Research, ESCO RTS Co., Ltd.) ;
  • Kim, Bongsik (Department of Engineering Research, ESCO RTS Co., Ltd.) ;
  • Ahn, Seokyoung (School of Mechanical Engineering, ERC/NSDM, Pusan National University) ;
  • Park, Sanghu (School of Mechanical Engineering, ERC/NSDM, Pusan National University)
  • 양성문 (부산대학교 기계공학부 대학원) ;
  • 심도식 (한국생산기술연구원 그린가공공정연구실용화그룹) ;
  • 지호성 (부산대학교 기계공학부 초소형기계부품혁신센터) ;
  • 백준호 (에스코알티에스 기술연구소 연구개발부) ;
  • 김봉식 (에스코알티에스 기술연구소 연구개발부) ;
  • 안석영 (부산대학교 기계공학부 정밀정형 및 금형가공연구소) ;
  • 박상후 (부산대학교 기계공학부 정밀정형 및 금형가공연구소)
  • Received : 2016.03.16
  • Accepted : 2016.09.19
  • Published : 2016.11.01
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Abstract

A conical roll-shaping process was proposed for fabrication of a metallic spiral blade applied to a small-scale wind turbine system. A spiral blade has continuously different curvatures, with a range of 100 to 350 mm radius. To fabricate this complex shape, we developed a conical roll-shaping process having two main conical rollers for feeding a blank sheet, and two cylindrical side rollers for control of local bending. For clear understanding of the process parameters, numerical analyses were conducted using a commercial code, Pam-Stamp. This study optimized the effects of process parameters, such as gap and angle between the main rollers and side rollers, and also the movement of side rollers. In order to increase the forming efficiency, a central rotation point was also calculated by the analytical approach. This developed rolling process can thus be utilized in a sheet metal forming process for obtaining spirally curved sheet metal shapes.

Keywords

References

  1. Bahaj, A., Myers, L., and James, P., “Urban Energy Generation: Influence of Micro-Wind Turbine Output on Electricity Consumption in Buildings,” Energy and Buildings, Vol. 39, No. 2, pp. 154-165, 2007. https://doi.org/10.1016/j.enbuild.2006.06.001
  2. Hong, W. P., "Technical Trend of Small Wind Turbine System for Smart Green Building," Proc. of the Korean Institute of Illuminating and Electrical Installation Engineers, Vol. 27, No. 1, pp. 57-70, 2013.
  3. Burton, T., Sharpe, D., Jenkins, N., and Bossanyi, E., "Wind Energy Handbook," John Wiley & Sons, 2001.
  4. Kim, J. H., Yang, H. D., Park, S. H., and Shin, J. H., "Application of New Paradigm for Effectivity of Small-scaled Wind Power Generators," Proc. of the KSME Spring Annual Conference, pp. 113-118, 2012.
  5. Lu, Q., Li, Q., Kim, Y.-K., and Kim, K.-C., “A Study on Design and Aerodynamic Characteristics of a Spiral-Type Wind Turbine Blade,” Journal of the Korean Society of Visualization, Vol. 10, No. 1, pp. 27-33, 2012. https://doi.org/10.5407/JKSV.2011.10.1.027
  6. Dalley, S. and Oleson, J. P., “Sennacherib, Archimedes, and the Water Screw: The Context of Invention in the Ancient World,” Technology and Culture, Vol. 44, No. 1, pp. 1-26, 2003. https://doi.org/10.1353/tech.2003.0011
  7. Gipe, P., "Wind Energy Basics: A Guide to Home and Community-Scale Wind-Energy Systems," Chelsea Green Publishing, 2009.
  8. Park, Y. H., Park, J. H., Park, J. C., and Rhee, E. K., “A Study on the Application of Small Wind Turbine System in Super High-Rise Building,” Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 25, No. 4, pp. 187-193, 2013. https://doi.org/10.6110/KJACR.2013.25.4.187
  9. Feng, Z. and Champliaud, H., “Three-Stage Process for Improving Roll Bending Quality,” Simulation Modelling Practice and Theory, Vol. 19, No. 2, pp. 887-898, 2011. https://doi.org/10.1016/j.simpat.2010.11.006
  10. Feng, Z. and Champliaud, H., “Modeling and Simulation of Asymmetrical Three-Roll Bending Process,” Simulation Modelling Practice and Theory, Vol. 19, No. 9, pp. 1913-1917, 2011. https://doi.org/10.1016/j.simpat.2011.05.006
  11. Hua, M., Sansome, D., and Baines, K., “Mathematical Modeling of the Internal Bending Moment at the Top Roll Contact in Multi-Pass Four-Roll Thin-Plate Bending,” Journal of Materials Processing Technology, Vol. 52, No. 2, pp. 425-459, 1995. https://doi.org/10.1016/0924-0136(94)01732-G
  12. Hua, M., Baines, K., and Cole, I., “Continuous Four-Roll Plate Bending: A Production Process for the Manufacture of Single Seamed Tubes of Large and Medium Diameters,” International Journal of Machine Tools and Manufacture, Vol. 39, No. 6, pp. 905-935, 1999. https://doi.org/10.1016/S0890-6955(98)00075-3
  13. Heislitz, F., Livatyali, H., Ahmetoglu, M. A., Kinzel, G. L., and Altan, T., “Simulation of Roll Forming Process with the 3-D FEM Code Pam-Stamp,” Journal of Materials Processing Technology, Vol. 59, No. 1, pp. 59-67, 1996. https://doi.org/10.1016/0924-0136(96)02287-X
  14. Li, Q., Kim, H. D., Ji, H. S., and Kim, K. C., “Flow Characteristics Around Archimedes Wind Turbine according to the Change of Angle of Attack,” Journal of the Korean Society of Visualization, Vol. 11, No. 1, pp. 28-33, 2013. https://doi.org/10.5407/JKSV.2013.11.1.028
  15. Kim, B.-M., Jo, Y.-J., Oh, K. H., Park, S.-W., Lee, S-K., et al., “Process Development of Variable Curvature Extrusion for Automotive Aluminum Bumper,” Transactions of the Korean Society of Mechanical Engineers A, Vol. 32, No. 4, pp. 327-332, 2008. https://doi.org/10.3795/KSME-A.2008.32.4.327
  16. Feng, Z. and Champliaud, H., "Investigation of Non-Kinematic Conical Roll Bending Process with Conical Rolls," Simulation Modelling Practice and Theory, Vol. 27, pp. 65-75, 2012. https://doi.org/10.1016/j.simpat.2012.05.007
  17. Zeng, J., Liu, Z., and Champliaud, H., “FEM Dynamic Simulation and Analysis of The Roll-Bending Process for Forming a Conical Tube,” Journal of Materials Processing Technology, Vol. 198, No. 1, pp. 330-343, 2008. https://doi.org/10.1016/j.jmatprotec.2007.07.016
  18. Math Open Reference, "Radius of an Arc or Segment," http://www.mathopenref.com/arcradius.html (Accessed 12 October 2016)
  19. Paul Bourke, "Calculating the Area and Centroid of a Polygon," http://paulbourke.net/geometry/polygonmesh/ (Accessed 12 October 2016)

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