This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Exterior Acoustics Using Infinite Elements
Technical Paper
2019-01-1508
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The idea of employing an infinite element to solve acoustic problems in an unbounded domain has demonstrated significant promise. Starting from first principles, the detailed element formulation for a mapped wave-envelope infinite element is presented. This, in conjunction with an efficient search algorithm to map receiver grid locations to the pertinent infinite element on the boundary, is used to enhance an established finite-element based vibro-acoustic solver for frequency response in order to solve large scale industrial problems. The solver is then subjected to a thorough validation and verification study using problems whose solutions are established either through classical texts or alternative approaches to demonstrate the accuracy, robustness and efficiency of the current solution.
Recommended Content
Authors
Citation
Rajagopal, A., Mandal, D., Saiki, J., and Patnaik, U., "Exterior Acoustics Using Infinite Elements," SAE Technical Paper 2019-01-1508, 2019, https://doi.org/10.4271/2019-01-1508.Also In
References
- Pierce , A.D. Acoustics: An Introduction to Its Physical Principles and Applications New York Acoustical Society of America, Melville 1989
- Brebbia , C.A. and Ciskowski , R.D. Boundary Element Methods in Acoustics Southampton Computational Mechanics Publications & Elsevier Applied Science 1991
- Givoli , D. Numerical Methods for Problems in Infinite Domains Amsterdam Elsevier Science 1992
- Ran Lin , T. and Pan , J. Sound Radiation Characteristics of A Box-Type Structure Journal of Sound and Vibration 325 4-5 835 851 2009
- Keuchel , S. , Hagelstein , N.C. , Zaleski , O. , and Von Estorff , O. Evaluation of Hypersingular and Nearly Singular Integrals in the Isogeometric Boundary Element Method for Acoustics Computer Methods in Applied Mechanics and Engineering 325 1 488 504 2017
- Thirard , C. and Parot , J.-M. On a Way to Save Memory when Solving Time Domain Boundary Integral Equations for Acoustic and Vibroacoustic Applications Journal of Computational Physics 348 744 753 2017
- Reiter , P. and Ziegelwanger , H. Multi-Domain Boundary Element Method for Axi-Symmetric Layered Linear Acoustic Systems Journal of Computational Physics 350 759 781 2017
- Barbarino , M. , Adamo , F.P. , Bianco , D. , and Bartoccini , D. Hybrid Bem/Empirical Approach for Scattering of Correlated Sources in Rocket Noise Prediction Journal of Sound and Vibration 403 90 103 2017
- Astley , R.J. Infinite Elements for Wave Problems: A Review of Current Formulations and an Assessment of Accuracy International Journal for Numerical Methods in Engineering 49 951 976 2000
- Macaulay , G.J. , Astley , R.J. , and Coyette , J.P. Mapped Wave Elements for Acoustical Radiation and Scattering Journal of Sound and Vibration 170 1 97 118 1994
- Astley , R.J. , Macaulay , G.J. , Coyette , J.P. , and Cremers , L. Three-Dimensional Wave-Envelope Elements of Variable Order for Acoustic Radiation and Scattering. Part I. Formulation in the Frequency Domain The Journal of the Acoustical Society of America 103 1 49 63 1998
- Astley , R.J. , Macaulay , G.J. , Coyette , J.P. , and Cremers , L. Three-Dimensional Wave-Envelope Elements of Variable Order for Acoustic Radiation and Scattering. Part II. Formulation in the Time Domain The Journal of the Acoustical Society of America 103 1 64 72 1998
- Berenger , J.-P. A Perfectly Matched Layer for the Absorption of Electromagnetic Waves Journal of Computational Physics 114 2 185 200 1994
- Liu , Q.-H. and Tao , J. The Perfectly Matched Layer for Acoustic Waves in Absorptive Media The Journal of the Acoustical Society of America 102 4 2072 2082 1997
- Matuszyk , P.J. Modeling of Guided Circumferential Sh and Lamb-Type Waves in Open Waveguides with Semi-Analytical Finite Element and Perfectly Matched Layer Method Journal of Sound and Vibration 386 295 310 2017
- OptiStruct Altair HyperWorks 2017 User’s Manual Troy, Michigan Altair Engineering 2017
- Desmet , W. , Sas , P. , Vandepitte , D. , and Leuven , K.U. An Indirect Treftz Method for the Steady-State Dynamic Analysis of Coupled Vibro-Acoustic Systems Computer Assisted Mechanics and Engineering Sciences 8 2001
- Hepberger , A. , Priebsch , H. , Diwoky , F. , and Pramberger , H. Application of the Wave Based Technique to Predict the Engine Noise Radiation Under Anechoic Conditions SAE Int. J. Passeng. Cars - Mech. Syst 2 1 1477 1486 2009 10.4271/2009-01-2211
- Amestoy , P. , Duff , I.S. , L’Excellent , J.-Y. , and Koster , J. Mumps: A General Purpose Distributed Memory Sparse Solver Proceedings of the 5th International Workshop on Applied Parallel Computing, New Paradigms for HPC in Industry and Academia, PARA ’00 London, UK 2001 121 130 Springer-Verlag
- Schenk , O. , Gärtner , K. , Fichtner , W. , and Stricker , A. Pardiso: A High-Performance Serial and Parallel Sparse Linear Solver in Semiconductor Device Simulation Future Gener. Comput. Syst. 18 1 69 78 2001