Earticle

초록

영어

Panel acoustic contribution analysis (PACA) is an advanced engineering tool for noise control and acoustic design in a cabin. In this study, a novel computational method for PACA by using Helmholtz equation least squares (HELS) based on nearfield acoustical holography (NAH) was proposed. According to the new very definition of panel acoustic contribution, formulations of the present method are derived to analyze the relative panel acoustic contributions of each panel in the interior sound field. The significance of this methodology is that it can provide either positive or negative contribution and rank relative acoustic contributions of individual panels to acoustic radiation anywhere in the field based on a single set of the acoustic pressures measured in the near field. A numerical simulation of a scaled vehicle cabin has been investigated to demonstrate the validity of this method. Moreover, the results show the advantage of the proposed method, since it could reflect the contributions of individual panels more correctly than the ranking of acoustic power.

목차

Abstract
 1. Introduction
 2. Theoretical Background
  2.1. Interior NAH based on HELS
  2.2 Formulation for Acoustic Contribution Analysis
 3. Numerical Validation
 4. Conclusion
 Acknowledgements
 References

키워드

저자

• Yue Xiao [ Jiangxi Province Key Laboratory of Precision Drive and Control, School of Mechanical and Electrical Engineering, Nanchang Institute of Technology, Nanchang 330099, China ]
• Mouyou Lin [ Jiangxi Province Key Laboratory of Precision Drive and Control, School of Mechanical and Electrical Engineering, Nanchang Institute of Technology, Nanchang 330099, China ]
• Zhenxi Wang [ School of Science, Nanchang Institute of Technology, Nanchang 330099, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605