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Journal of mechanical science and technology v.24 no.6, 2010년, pp.1301 - 1309   SCIE
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Process analysis and test of manufacturing of sleeve spring-type torsional vibration damper

Hwang, Beom-Cheol    (Research Institute of Mechanical Technology, Pusan National University   ); Bae, Won-Byong    (School of Mechanical Engineering and RlMT, Pusan National University   ); Kim, Chul    (Research Institute of Mechanical Technology, Pusan National University  );
  • 초록

    In diesel engines, engine torque fluctuation inevitably produces torsional vibration. A sleeve spring-type damper commonly is used to reduce this vibration. In this paper, closed form equations to predict the spring constant of a sleeve spring and the torsional characteristics of a torsional vibration damper are proposed for calculation of the stiffness of the damper. The equations were verified through finite element analysis (FEA) and experiments. In addition, the stability of the sleeve spring-type torsional vibration damper was verified in an analysis of the inner star and outer star (the core components of the damper). A two-roll bending process, proposed in this paper, was determined to be the most suitable for manufacture of the sleeve springs. A closed form equation to calculate the forming radius, taking account of the springback effect, was derived, and a FEA method used to analyze the elasto-plastic problem was verified through an analysis of a $90^{\circ}$ bending process. The results of the analysis were in good agreement with the experiment. It is recommended that our proposed method, an advanced technique that can significantly reduce production costs, replace the conventional forming process.


  • 주제어

    Sleeve spring .   Spring constant .   Torsional vibration damper .   Two-roll bending.  

  • 참고문헌 (14)

    1. B. C. Hwang, C. Kim and W. B. Bae, A Study of Structural Analysis and Torsional Characteristic of the Sleeve SpringType Torsional Vibration Damper, Korean Society for Precision Engineering, 26 (2) (2009) 94-100.     
    2. M. Yang and S. Shima, Simulation of Pyramid Type Threeroll Bending Process, International Journal of Mechanical Sciences, 30 (12) (1988) 877-886. 
    3. G. Yang, K. Mori and K. Osakada, Determination of Forming Path in Three-Roll Bending Using FEM Simulation and Fuzzy Reasoning, Journal of Material Processing Technology, 45 (1994) 161-166. 
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    8. M. Hua, I. M. Cole, K. Baines and K. P. Rao, A Formulation for Determining the Single-pass Mechanics of the Continuous Four-roll Thin Plate Bending Process, Journal of Material Processing Technology, 67 (1997) 189-194. 
    9. M. Hua and Y. H. Lin, Large Deflection Analysis of Elastoplastic Plate in Steday Continuous Four-Roll Bending Process, International Journal of Mechanical Sciences, 41 (1999) 1461-1483. 
    10. M. Hua and Y. H. Lin, Effect of strain hardening on the Continuous Four-roll Plate Edge Bending Process, Journal of Material Processing Technology, 89-90 (1999) 12-18. 
    11. Y. H. Lin and M. Hua, Influence of strain hardening on Continuous Plate Roll-bending Process, International Journal of Non-linear Mechanics, 35 (2000) 883-896. 
    12. M. Hua, K. Baines and I. M. Cole, Continuous four-roll plate bending: a production process for the manufacture of single seamed tubes oflarge and medium diameters, International Journal of Machine Tools and Manufacture, 39 (1999) 905-935. 
    13. K. Lange, Handbook of Metal Forming, McGraw-Hill, New York, USA, (1985). 
    14. E. M. Mielnik, Metalworking Science Engineering, McGraw-Hill, New York, USA, (1991). 

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