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Reflection and Transmission of Acoustic Shock Wave at a Boundary

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Measurements were made of wave form of transmitted sound pulses radiated into free air space from open end of a circular pipe, when a N-shaped acoustic shock wave propagating through the pipe is incident upon the open end. It was found that a reflected wave has a form which includes mainly lower frequency components of N-wave form, but the transmitted waves are made up of two sharp pulses. Calculations were made by the technique of the Fourier analysis for change of wave form of a pulse at a boundary whose acoustic impedance depends upon frequency. It was assumed that any component of N-wave form may behave independently of other components. Reasonable agreements between the calculated and the experimental results were obtained.
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Document Type: Research Article

Publication date: January 1, 1972

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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