Numerical modelling assessment of radiated sound power by acoustic radiation efficiency parameter.
Acoustic radiation efficiency is a parameter which characterizes the sound radiation effectiveness of a vibrating surface. It combines both sound power and vibration velocity of a sound radiator which can be convenient in some types of engineering analyses. This paper discusses the
possibilities of using acoustic radiation efficiency parameter as an indicator applied to assess the noise emitted by machinery. Evaluation is done using simulation results compared to real-life measurement of vibration velocity performed using Laser Doppler Vibrometer and sound intensity
scan. Additionally application of vibration-velocity-based Discrete Calculation Method into numerical modelling is presented.
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Document Type: Research Article
Affiliations: ABB Power Grids Poland Sp. z o.o.
Publication date: 12 October 2020
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