2020
DOI: 10.2219/rtriqr.61.3_171
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<b>Analytical Method of Noise Contribution Ratio in Railway Vehicle Using Small Speaker and Acoustic Particle Velocity Sensor</b>

Abstract: To apply noise reduction countermeasures effectively in a railway vehicle, it is necessary to clarify the contribution ratio of each noise generation source at each noise evaluation position. The acoustic characteristics of an evaluation position in an enclosed space can be represented as the product of the acoustic particle velocity near the noise source and the acoustic transfer function between the noise source and the evaluation position. Therefore, the authors have developed a new analytical method to est… Show more

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