ACOUSTIC MODELLING OF SIGNATURE REDUCTION MATERIALS FOR UNDERWATER APPLICATIONS

机译：水下应用中信号还原材料的声学建模

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We have described some of our analytical techniques for modelling the acoustic performance of materials which have been subjected to hydrostatic pressure. Our model takes a two-step approach, firstly by applying a simple phenomenological technique to predict the static deformation of the material due to the pressure and then by modelling the sound propagation in the deformed medium using an effective medium technique. This combined model has been validated against measurements taken in deep water in Norway and against smaller samples in pressurised conditions in a pulse tube and has been found to provide reliable results for a variety of materials.

机译：我们已经介绍了一些分析技术，用于对已承受静水压力的材料的声学性能进行建模。我们的模型采用两步法，首先通过应用简单的现象学技术来预测由于压力导致的材料的静态变形，然后使用有效的介质技术对声音在变形介质中的传播进行建模。该组合模型已针对挪威深水中的测量结果和脉冲管中加压条件下的较小样本进行了验证，并且已发现可为多种材料提供可靠的结果。

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《IUTAM Symposium on Diffraction and Scattering in Fluid Mechanics and Elasticity Jul 16-20, 2000 Manchester, United Kingdom》|2000年|p.123-132|共10页
会议地点 Manchester(GB)
作者
F. H. Kerr; A. M. Baird;
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作者单位

QinetiQ, Winfrith Technology Centre Dorchester, Dorset DT2 8XJ UK;

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原文格式 PDF
正文语种 eng
中图分类力学;
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2. Optimization of the structure of 1-3 piezocomposite materials to maximize the performance of an underwater acoustic transducer using equivalent circuit models and finite element method [J] . Pyo Seonghun, Roh Yongrae Japanese journal of applied physics . 2015,第7S1期

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3. A PDMS-based broadband acoustic impedance matched material for underwater applications [J] . Guillermic R-M, Lanoy M., Strybulevych A., Ultrasonics . 2019,第期

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4. Acoustic modelling of signature reduction materials for underwater applications [C] . F. H. Kerr, A. M. Baird IUTAM Symposium on Diffraction and Scattering in Fluid Mechanics and Elasticity . 2002

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5. Characterization of underwater acoustic sources recorded in reverberant environments with application to SCUBA signatures [D] . Gemba, Kay Leonard 2014

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6. Parametric Acoustic Array and Its Application in Underwater Acoustic Engineering [O] . Hanyun Zhou, S.H. Huang, Wei Li 2020

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7. A PDMS-based broadband acoustic impedance matched material for underwater applications [O] . R.-M. Guillermic, M. Lanoy, A. Strybulevych, 2019

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ACOUSTIC MODELLING OF SIGNATURE REDUCTION MATERIALS FOR UNDERWATER APPLICATIONS

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