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Acoustic Property Simulation for Building Components

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Computational Simulation in Architectural and Environmental Acoustics

Abstract

This chapter shows practical examples of numerical simulation results for acoustical characteristics of building elements, such as the sound absorption, sound-scattering, and sound insulation performance. Additionally, radiation characteristics of speaker systems are also treated. In each section, methodologies and numerical modeling schemes of the simulation, and the calculated results for practical cases are illustrated. The results are validated through comparison with the measurement results, and the applicability of the numerical methods is discussed.

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Notes

  1. 1.

    Since the direction \(n\) is different from that in Eq. (8.8), the integral term has opposite sign.

  2. 2.

    The former deals with the two-dimensional problem.

  3. 3.

    Since the specimen with dimensions of 0.5 \(\times \) 0.5 m has little absorption, measurement error becomes large. Therefore, four specimens were set sufficiently apart from each other in the reverberation room in the measurement.

  4. 4.

    Since the averaged absorption coefficients within one-third octave band have approximately same values as those for the center frequencies of the bands, the latter values are used in Fig. 8.4.

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Correspondence to Takumi Asakura .

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Asakura, T. et al. (2014). Acoustic Property Simulation for Building Components. In: Sakuma, T., Sakamoto, S., Otsuru, T. (eds) Computational Simulation in Architectural and Environmental Acoustics. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54454-8_8

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  • DOI: https://doi.org/10.1007/978-4-431-54454-8_8

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