Noise Reduction of Muffler by Optimal Design

  • Oh, Jae-Eung (School of Mechanical Engineering, Hanyang University) ;
  • Cha, Kyung-Joon (Department of Mathematics, Lab. of Statistical Data Analysis, Hanyang University)
  • 발행 : 2000.09.01

초록

This paper proposes an optimal design scheme to improve the muffler's capacity of noise reduction of the exhaust system by combining the Taguchi method and a fractional factorial design. As a measuring tool for the performance of a muffler, the performance prediction software which is developed by Oh, Lee and Lee (1996) is used. In the first stage of a design, the length and radius of each component of the current muffler system are selected as control factors. Then, the $L_{18}$ table of orthogonal arrays is adopted to extract the effective main factors. In the second stage, the fractional factorial design is adopted to take interactions into consideration, which the $L_{18}$ table of orthogonal arrays can not consider. For an optimal design, the $L_{27}$ table of orthogonal arrays with main and interaction effects is proposed and the noise factors such as temperature, background noise and humidity are analyzed for more efficient design simultaneously.

키워드

참고문헌

  1. Bendell, A., Disney, J., and Pridmore., A. 1989, Taguchi Methods: Applications in World Industry, Springer-Verlag, New York
  2. Box, G.E.P., Hunter, W.G., and Hunter., J.S., 1978, Statistics for Experiments, Wiley&Sons, New York
  3. Cochran, W. G. and Cox., G. M., 1957, Experimental Designs, Wiley&Sons, New York
  4. Craggs, A., 1976, 'A Finite Element Approach for Damped Acoustic Systems : An Application to Evaluate the Performance of Reactive Mufflers', Journal of Sound and Vibration, Vol. 48, pp. 377 - 392 https://doi.org/10.1016/0022-460X(76)90063-8
  5. Hwang, W.J., Park, G.J. and Lee, W.I., 1994, 'Structural Optimization Post Processing Using Taguchi Method', JSME, Series A, Vol. 37, No. 2. pp. 166-172
  6. Kim, J. K., 1999, 'Optimum Design of a Heat-Exchanger-Fan Casing of Clothe Using the Taguchi Method', KSME International Journal, Vol. 13 No. 12, pp. 962-972
  7. Lee, K.H., Eom, LS., Park, G.J. and Lee, W.I, 1995, 'Robust Design for Unconstrained Optimization Using Taguchi Method', AIAA Journal. Vol. 34, No. 5, pp. 1059-1063
  8. Mason, R.L., Gunst, R.F., and Hess, J.L., 1989, Statistical Design and Analysis of Experiments, Wiley&Sons, New York
  9. Mishima, Nozomu, Ishii, Kosuke, and Mori, Kazuo, 1998, 'Robustness Estimation for Machine Tool Designs Using Taguchi Method', SOURCE Journal of the Japan Society for Precision Engineering, Vol. 64, pp. 1502-1506
  10. Munjal, N.L., 1987, Acoustics of Ducts and Mufflers, Wiley & Sons, New York
  11. Oh, J.E., Han, K.H., and Lee., J.C., 1995, 'Analysis and Advance for Performance of the Muffler of a Passenger Car', Proc. of Spring Conference, pp. 726-732 (in Korea)
  12. Oh, J.E., Han, K.H., and Son, D.Y., 1996, 'The Design Technique for Low-Noise Intake System of Vehicle', Proc. of Autumn Conference, Kor-ean Society of Automotive Engineering, pp. 317 - 322 (in Korea)
  13. Oh, J.E., Lee, K.T., and Lee, J.e., 1996, 'Development of the Software for Analysis and Improvement of a Passenger Car's Muffier', Journal of Automotive Engineering, Korean Association of Automotive Engineering, Vol. 4, No. 6, pp. 133 -143 (in Korea)
  14. Park, S.K., 1994, 'Application of Quality Engineering for Energy Efficiency of Compressor', The 12th Annual Taguchi Symposium, Rochester, New York, pp. 199-211
  15. Sahasrabudhe, A.D., Anantha R,S. and Mun-ja1, M.L., 1991, 'Matrix Condensation and Transfer matrix Techniques in The 3-D Analysis of Expansion Chamber Muffler', Japan of Sound and Vibration, Vol. 143, No.7, pp. 371-394 https://doi.org/10.1016/0022-460X(91)90487-5
  16. Taguchi, G., 1991a., Quality Engineering of Development and Design, Korea Standard Association, Translated to Korean
  17. Taguchi, G., 1991b, Experimental Designs for Quality Engineering, Korea Standard Associa-tion, Translated to Korean
  18. Taguchi, G., 1991c, Case Studies of Quality Engineering-America and Europe, Korea Standard Association, Translated to Korean
  19. Wang, H.T., Liu, Z.J., Chen, S.X., Yang, J.P., 1999, 'Application of Taguchi Method to Robust Design of BLDC Motor Performance', SOURCE IEEE Transactions on Magnetics, Vol. 35 No. 5, pp. 3700-3702
  20. Young, Cheng. J. and Crocker, M. J., 1975, 'Prediction of Transmission Loss in Mufflers by the Finite Element Method', The Acoustical Society of America, Vol. 57, No. 1, pp. 144-148