Acoustic Analysis and Design of a Direct-Radiator-Type Loudspeaker

직접방사형 스피커의 음향특성 해석및 설계

  • 김준태 (삼성종합기술원 수퍼컴응용 Lab.) ;
  • 김정호 (삼성종합기술원, 수퍼컴운용실) ;
  • 김진오 (숭실대학교 공과대학 기계공학과)
  • Published : 1998.04.01

Abstract

A systematic procedure for designing a direct-radiator-type loudspeaker has been developed, based on the numerical vibro-acoustic analysis and the Taguchi method. The finite-element model of the speaker cone has been used to calculated the vibration response of the cone excited by the voice coil. The vibration displacement of the speaker cone has been converted into the vibration velocity and used as a boundary condition for the acoustic analysis. The acoustic frequency characteristics of the loudspeaker have been calculated by the boundary element method. The numerical results have been verified by the experiments carried out in an anechoic chamber. Some design parameters have been selected by using the Taguchi method, and the variations of the acoustic characteristics due to the changes of the parameter values have been examined using the numerical model.

Keywords

References

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