Development of a hand-held sensor probe for detection of sound components radiated from a specific device using surface intensity measurements

Hirao, Yoshihiro; Yamamoto, Kohei; Nakamura, Kentaro; Ueha, Sadayuki

doi:10.1016/j.apacoust.2003.11.011

Cited by 7 publications

(1 citation statement)

References 10 publications

(7 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 Surface intensity analysis is a promising technique for sound power measurements of individual noise sources in the presence of a noisy sound field, 6 which was certainly true in the present case due to the complex sound radiation from parts of the compressor. Furthermore, Thrane et al argue that the combination of both types of measurement techniques can be very useful to perform efficient noise control.…”

Section: Partial Noise Source Analysismentioning

confidence: 98%

Source Identification and Noise Reduction of a Reciprocating Compressor; a Case History

Roozen¹,

Oetelaar²,

Geerlings³

et al. 2009

IJAV

View full text Add to dashboard Cite

A noise source can be very complex in nature. In noise control engineering an essential first step is to identify the strongest contributing noise sources. This paper discusses a practical case history, in which a series of measurement techniques was applied to a reciprocating compressor to identify the strongest sound source. In addition numerical prediction methods were used to give direction towards a lower noise design of the compressor. Structural modifications to the compressor are discussed, leading to a significant reduction of the noise levels. The sound power level of the reciprocating compressor was reduced by 5 dB. Moreover, from a perceptual point of view, customers experience the sound as more robust and more pleasant as well, probably because of shifting frequencies.

show abstract

Section: Partial Noise Source Analysismentioning

confidence: 98%