By Steffen Marburg (auth.), Steffen Marburg, Bodo Nolte (eds.)

ISBN-10: 3540774475

ISBN-13: 9783540774471

Among numerical equipment utilized in acoustics, the Finite point process (FEM) is generally favourite for inside difficulties while the Boundary point approach (BEM) is kind of renowned for external ones.

That is why this worthy reference offers an entire survey of tools for computational acoustics, particularly FEM and BEM. It demonstrates that either equipment could be successfully utilized in the complementary situations.

The chapters by way of famous authors are calmly balanced: 10 chapters on FEM and 10 on BEM. An preliminary conceptual bankruptcy describes the derivation of the wave equation and offers a unified method of FEM and BEM for the harmonic case. A categorization of the rest chapters and a private outlook whole this creation. In what follows, either FEM and BEM are mentioned within the context of very assorted difficulties.

Firstly, this includes numerical matters, e.g. convergence, multi-frequency recommendations and hugely effective equipment; and secondly, recommendations suggestions for the actual problems that come up with exterior difficulties, e.g. dialogue of soaking up limitations for FEM and therapy of the non-uniqueness challenge for BEM. eventually, either elements on FEM and on BEM are accomplished by way of chapters on comparable difficulties, e.g. formulations for fluid-structure interplay. as well as time-harmonic difficulties, brief difficulties are thought of in a few chapters. Many theoretical and commercial purposes are provided.

Overall, this ebook is a unified evaluate of the state of the art on FEM and BEM for computational acoustics.

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Additional resources for Computational Acoustics of Noise Propagation in Fluids - Finite and Boundary Element Methods

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In this context, the paper by Otsuru et al. [85] describes an interesting benchmark project which has been funded in Japan3 . 3 Mid–Frequency Range and Uncertainty Analysis A field which is receiving increasing attention in recent years is the so–called mid– frequency range, also known as medium frequency range. The definition refers to the terms of the low and the high frequency ranges. Usually, the low frequency range is understood such that a certain excitation results in a deterministic response.

Conca C, Planchard J, Vanninathan M (1997) Fluids and periodic structures. John Wiley & Sons, Chichester 20. Cottereau R, Clouteau D, Soize C (2007) Construction of a probabilistic model for impedance matrices. Computer Methods in Applied Mechanics and Engineering 196:2252–2268 21. Coyette J–P, Wynendaele H, Chargin MK (1993) A global acoustic sensitivity tool for improving structural design. Proceedings – SPIE The International Society for Optical Engineering 1923:1389–1394 22. Cremers L, Guisset P, Meulewaeter L, Tournour M (2000) A computer–aided engineering method for predicting the acoustic signature of vibrating structures using discrete models.

90), respectively. e. v s = 0, the negative particular solution of the particle velocity remains as the only boundary condition. It can be seen as if the solution ps must be chosen such that the boundary condition which is induced by the particular solution is balanced. 6 Categorization of Subsequent Chapters In the subsequent twenty chapters of this book, the first ten are basically on finite element methods, the second ten are basically on boundary element methods. These papers cover a wide range of the field of computational acoustics.

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Computational Acoustics of Noise Propagation in Fluids - Finite and Boundary Element Methods by Steffen Marburg (auth.), Steffen Marburg, Bodo Nolte (eds.)

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