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id acadia17_52
authors Ajlouni, Rima
year 2017
title Simulation of Sound Diffusion Patterns of Fractal-Based Surface Profiles
source ACADIA 2017: DISCIPLINES & DISRUPTION [Proceedings of the 37th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-96506-1] Cambridge, MA 2-4 November, 2017), pp. 52-61
summary Acoustical design is one of the most challenging aspects of architecture. A complex system of competing influences (e.g., space geometry, size, proportion, material properties, surface detail, etc.) contribute to shaping the quality of the auditory experience. In particular, architectural surfaces affect the way that sound reflections propagate through space. By diffusing the reflected sound energy, surface designs can promote a more homogeneous auditory atmosphere by mitigating sharp and focused reflections. One of the challenges with designing an effective diffuser is the need to respond to a wide band of sound wavelengths, which requires the surface profile to precisely encode a range of detail sizes, depths and angles. Most of the available sound diffusers are designed to respond to a narrow band of frequencies. In this context, fractal-based surface designs can provide a unique opportunity for mitigating such limitations. A key principle of fractal geometry is its multilevel hierarchical order, which enables the same pattern to occur at different scales. This characteristic makes it a potential candidate for diffusing a wider band of sound wavelengths. However, predicting the reflection patterns of complicated fractal-based surface designs can be challenging using available acoustical software. These tools are often costly, complicated and are not designed for predicting early sound propagation paths. This research argues that writing customized algorithms provides a valuable, free and efficient alternative for addressing targeted acoustical design problems. The paper presents a methodology for designing and testing a customized algorithm for predicting sound diffusion patterns of fractal-based surfaces. Both quantitative and qualitative approaches were used to develop the code and evaluate the results.
keywords design methods; information processing; simulation & optimization; data visualization
series ACADIA
email ajlouni@arch.utah.edu
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100%; open Ajlouni Rima (2012) Find in CUMINCAD The Global Long-Range Order of Quasi-Periodic Patterns in Islamic Architecture , Acta Crystallographica, Section A. 68 (2): 235–43

100%; open Ajlouni Rima (2017) Find in CUMINCAD A Contemplative Pause on the Integration of Computational Thinking Models Into Architectural Education , Architectural Research Addressing Societal Challenges, edited by Manuel Couceiro da Costa, Filipa Roseta, Joana Pestana Lages, and Susana Couceiro da Costa. London: CRC Press

100%; open Beckmann, Petr, and Andre Spizzichino (1987) Find in CUMINCAD Scattering of Electromagnetic Waves from Rough Surfaces , New York: Pergamon Press

100%; open Bradley, David, Erik O. Snow, Kimberly A. Riegel, Zachary D. Nasipak, and Andrew S. Terenzi (2011) Find in CUMINCAD Numerical Prediction of Sound Scattering From Surfaces with Fractal Geometry: A Preliminary Investigation , Proceedings of Meetings on Acoustics 12 (1): 015010

100%; open Cox, Trevor J. and Peter D’Antonio (1997) Find in CUMINCAD Fractal Sound Diffusers , Proceedings of the 103rd Convention of the Audio Engineering Society, paper K7. New York: AES

100%; open Cox, Trevor J. and Peter D’Antonio (2009) Find in CUMINCAD Acoustic Absorbers and Diffusers: Theory, Design and Application, 2nd edition , New York: Taylor & Francis

100%; open Cox, Trevor J. and Y. W. Lam (1993) Find in CUMINCAD Evaluation of Methods for Predicting the Scattering from Simple Rigid Panels , Applied Acoustics 40 (2): 123–140

100%; open Cox, Trevor J. (1996) Find in CUMINCAD Designing Curved Diffusers for Performance Spaces , Journal of the Audio Engineering Society 44 (5): 354–364

100%; open Di Ieva, Antonio, Fabio Grizzi, Herbert Jelinek, Andras J. Pellionisz, and Gabriele Angelo Losa (2014) Find in CUMINCAD Fractals in the Neurosciences, Part I: General Principles and Basic Neurosciences , Neuroscientist 20 (4): 403–417

100%; open D’Antonio, Peter, and John H. Konnert (1992) Find in CUMINCAD The QRD Diffractal: A New One- or Two-Dimensional Fractal Sound Diffusor , Journal of the Audio Engineering Society 40 (3): 117–129

100%; open Embrechts, Jean-Jacques, Dominique Archambeau, and Guy-Bart Stan (2001) Find in CUMINCAD Determination of the Scattering Coefficient of Random Rough Diffusing Surfaces for Room Acoustics Applications , Acta Acustica United with Acustica 87 (4): 482–494

100%; open Everest, F. Alton, and Ken Pohlmann (2009) Find in CUMINCAD Master Handbook of Acoustics, 5th ed. , New York: McGraw Hill

100%; open Farner, J. (2014) Find in CUMINCAD Acoustic Diffusion: Simulation and Investigation of 2D Diffusers Using the Boundary Element Method , BE (Hons) Thesis, University of Tasmania

100%; open Fay, Michael W (2013) Find in CUMINCAD Acoustics 101 for Architects , Journal of the Acoustical Society of America 134 (5): 4005

100%; open Funkhouser, Thomas, Nicolas Tsingos, Ingrid Carlbom, Gary Elko, Mohan Sondhi and Jim West (2002) Find in CUMINCAD Modeling Sound Reflection and Diffraction in Architectural Environments with Beam Tracing , Forum Acusticum, Proceedings of the 3rd Iberian Congress on Acoustics, 8. Seville, Spain: 8

100%; open Hanrahan, Pat and Wolfgang Krueger (1993) Find in CUMINCAD Reflection from Layered Surfaces due to Subsurface Scattering , Proceedings of the 20th Annual Conference on Computer Graphics and Interactive Techniques. 165–174. Anaheim, CA: SIGGRAPH

100%; open Henham, William, Damien Holloway and Lilyan Panton (2016) Find in CUMINCAD Broadband Acoustic Scattering With Modern Aesthetics From Random 3D Terrain Surfaces Generated Using the Fourier Synthesis Algorithm , Proceedings of ACOUSTICS 2016: The Second Australasian Acoustical Societies Conference, 1–10. Brisbane, Australia: ACOUSTICS

100%; open Lee, Hyojin, and Tetsuya Sakuma (2015) Find in CUMINCAD Numerical Characterization of Acoustic Scattering Coefficients of One-Dimensional Periodic Surfaces , Applied Acoustics 88: 129–136

100%; open Lyamshev, L. M. (2001) Find in CUMINCAD Fractal Nature of Sea Surface Reverberation , Doklady Physics 46 (6): 393–395

100%; open Mandelbrot, Benoit B. (1983) Find in CUMINCAD The Fractal Geomtry of Nature , New York: W.H. Freeman

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