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Demonstration of Vibro-Acoustic Reciprocity including Scale Modeling
Technical Paper
2011-01-1721
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The principle of vibro-acoustic reciprocity is reviewed and applied to model sound radiation from a shaker excited structure. Transfer functions between sound pressure at a point in the far field and the velocity of a patch were determined reciprocally both for the to-scale structure and also for a half-scale model. A point monopole source was developed and utilized for the reciprocal measurements. In order to reduce the measurement effort, the boundary element method (BEM) was used to determine the reciprocal transfer functions as an alternative to measurement. Acceleration and sound intensity were measured on patches of the vibrating structure. Reciprocally measured or BEM generated transfer functions were then used to predict the sound pressure in the far field from the vibrating structure. The predicted sound pressure compared favorably with that measured.
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Liu, J., Zhou, L., and Herrin, D., "Demonstration of Vibro-Acoustic Reciprocity including Scale Modeling," SAE Technical Paper 2011-01-1721, 2011, https://doi.org/10.4271/2011-01-1721.Also In
References
- Rayleigh, Lord “Some General Theorems Relating to Vibrations,” Proceedings London Mathematical Society 4 357 368 1873
- Lyamshev, L. M. “A Question in Connection with the Principle of Reciprocity in Acoustics,” Soviet Physics Doklady 4 406 1959
- Lyamshev, L. M. “A Method for Solving the Problem of Sound Radiation by Thin Elastic Shells and Plates,” Soviet Physics Acoustics 5 122 124 1959
- Fahy, F. J. “The Vibro-Acoustic Reciprocity Principle and Applications to Noise Control,” Acustica 81 544 558 1995
- Fahy, F. J. “Some Applications of the Reciprocity Principle in Experimental Vibro-Acoustics,” Acoustical Physics 49 2 217 229 2003
- Verheij, J. W. “Inverse and Reciprocity Methods for Machinery Noise Source Characterization and Sound Path Quantification. Part 1: Sources,” International Journal of Acoustics and Vibration 2 1 11 20 1997
- Verheij, J. W. “Inverse and Reciprocity Methods for Machinery Noise Source Characterization and Sound Path Quantification. Part 2: Transmission Paths,” International Journal of Acoustics and Vibration 2 3 103 112 1997
- van der Linden, P. Fun, J. “Using Mechanical-Acoustic Reciprocity for Diagnosis of Structure Borne Sound in Vehicles,” SAE Technical Paper 931340 1993 10.4271/931340
- Zheng, J. Fahy, F. J. Anderton, D. “Application of a Vibro-Acoustic Reciprocity Technique to the Prediction of Sound Radiated by a Motored IC Engine,” Applied Acoustics 42 333 346 1994
- Kim, B. S. Kim, G. J. Lee, T. K. “The Identification of Tyre Induced Vehicle Interior Noise Applied Acoustics 68 134 156 2007
- Geerlings, A. C. Thompson, D. J. Verheij, J. W. “Model-Based Acoustic Substitution Source Method for Assessing Shielding Measures Applied to Trains,” Applied Acoustics 62 979 1000 2001
- Mason, J. M. Fahy, F. J. “Development of a reciprocity technique for the prediction of propeller noise transmission through aircraft fuselages,” Noise Control Engineering Journal 34 2 43 52 1990
- Veronesi, W. A. Maynard, J. D. “Digital Holographic Reconstruction of Sources with Arbitrarily Shaped Surfaces,” Journal of the Acoustical Society of America 85 2 588 598 1989
- Tournour, M. Cremers, L. Guisset, P. “Inverse Numerical Acoustics Based on Acoustic Transfer Vectors,” 7th International Congress on Sound and Vibration Garmisch-Partenkirchen, Germany 1069 1076 2000
- Martinus, F. Herrin, D. W. Seybert, A. F. “Selecting Measurement Locations to Minimize Reconstruction Error Using the Inverse Boundary Element Method,” Journal of Computational Acoustics 15 4 531 555 2007
- Williams, E. G. Maynard, J. D. Skudrzyk, E. Sound Source Reconstruction Using a Microphone Array Journal of the Acoustical Society of America 68 340 344 1980
- Williams, E. G. Fourier Acoustics: Sound Radiation and Nearfield Acoustical Holography Academic London 1999
- Wang, Z. Wu, S. F. “Helmholtz Equation Least Squares Method for Reconstructing the Acoustic Pressure Field,” Journal of the Acoustical Society of America 102 4 2020 2032 1997
- ISO 140-4 1998 “Acoustics - Measurement of Sound Insulation in Buildings and of Building Elements - Part 4: Field Measurements of Airborne Sound Insulation between Rooms” 1998
- ISO 3382 1997 “Acoustics - Measurement of the reverberation time of rooms with reference to other acoustic parameters” 1997
- Vlahopoulos, N. “Indirect Variational Boundary Element Method,” Chap. 6 Boundary Element Acoustics, Fundamentals and Computer Codes Wu, T. W. WIT Press Southampton, UK 2000