Surface Wave Propagation in a Microstretch Thermoelastic Diffusion Material under an Inviscid Liquid Layer

Q2 Physics and Astronomy Advances in Acoustics and Vibration Pub Date : 2014-08-04 DOI:10.1155/2014/518384
Rajesh Kumar, Sanjeev Ahuja, S. K. Garg
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引用次数: 6

Abstract

The present investigation deals with the propagation of Rayleigh type surface waves in an isotropic microstretch thermoelastic diffusion solid half space under a layer of inviscid liquid. The secular equation for surface waves in compact form is derived after developing the mathematical model. The dispersion curves giving the phase velocity and attenuation coefficients with wave number are plotted graphically to depict the effect of an imperfect boundary alongwith the relaxation times in a microstretch thermoelastic diffusion solid half space under a homogeneous inviscid liquid layer for thermally insulated, impermeable boundaries and isothermal, isoconcentrated boundaries, respectively. In addition, normal velocity component is also plotted in the liquid layer. Several cases of interest under different conditions are also deduced and discussed.
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无粘液体层下微拉伸热弹性扩散材料的表面波传播
本文研究了瑞利型表面波在无粘液体层下的各向同性微拉伸热弹性扩散固体半空间中的传播。在建立数学模型的基础上,导出了表面波的紧致长期方程。在均匀无粘液体层下的微拉伸热弹性扩散固体半空间中,分别对绝热、不渗透边界和等温、等浓边界进行了不完美边界随弛豫时间的影响,用图形绘制了相速度和衰减系数随波数的色散曲线。此外,还绘制了液层的法向速度分量。并推导和讨论了不同条件下的几个有趣的例子。
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期刊介绍: The aim of Advances in Acoustics and Vibration is to act as a platform for dissemination of innovative and original research and development work in the area of acoustics and vibration. The target audience of the journal comprises both researchers and practitioners. Articles with innovative works of theoretical and/or experimental nature with research and/or application focus can be considered for publication in the journal. Articles submitted for publication in Advances in Acoustics and Vibration must neither have been published previously nor be under consideration elsewhere. Subject areas include (but are not limited to): Active, semi-active, passive and combined active-passive noise and vibration control Acoustic signal processing Aero-acoustics and aviation noise Architectural acoustics Audio acoustics, mechanisms of human hearing, musical acoustics Community and environmental acoustics and vibration Computational acoustics, numerical techniques Condition monitoring, health diagnostics, vibration testing, non-destructive testing Human response to sound and vibration, Occupational noise exposure and control Industrial, machinery, transportation noise and vibration Low, mid, and high frequency noise and vibration Materials for noise and vibration control Measurement and actuation techniques, sensors, actuators Modal analysis, statistical energy analysis, wavelet analysis, inverse methods Non-linear acoustics and vibration Sound and vibration sources, source localisation, sound propagation Underwater and ship acoustics Vibro-acoustics and shock.
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