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On the Estimation of the Noise Emitted by the Vibration of a Circular Plate (2nd Report)

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 29 Issue 1 Page 153-160
published_at 1978
KJ00000156236.pdf
[fulltext] 677 KB
Title
振動円板から放射される騒音の予測(第 2 報)
On the Estimation of the Noise Emitted by the Vibration of a Circular Plate (2nd Report)
Creators Fukuda Motokazu
Creators Kojima Naoya
Creators Ikoma Katsuhiro
Source Identifiers
Modern-day life is such that machines, equipment, and humans must function properly in mechanical vibration and accoustic noise environments. In addition to damage incurred directly, vibration may also result in the generation of undesirable accoustic noise, and the reduction of vibration may reduce noise level. So, it is important to make clear the problems concerning with the relation of vibration and noise. In the previous report, a method for rough estimation of the noise level by the radiation factor K was described. This report describs in detail the relation between the vibration of a circular plate clamped at the edge and the noise originated by the surface vibration. Assuming that the circular plate is consisted of many minute elements and each of them vibrates as a simple harmonic motion in an infinite baffle, then the sound pressure level at a point away from the plate surface is obtained by summing up all the sound pressure radiated from each minute sources. The values of the over-all sound pressure level calculated by this method have been found in good agreement with those obtained from the experiments.
Subjects
機械工学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1978
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部