IDENTIFICATION OF CRACK NOISES IN HOUSEHOLD REFRIGERATORS
Abstract
This paper presents a new visualization method of complex sound sources in combined fridge freezers. Measurement method with sixty array microphones in free sound field conditions is used. Laboratory acoustic measurements using an algorithm of the complex sound sources visualization are performed. With this method, sound effects are successfully identified, localized and calculated. The individual crack noises emitted as a result of thermal dilatation of different types of material in the transitional cooling modes of the household refrigerator.
Keywords
Full Text:
PDFReferences
Kevin Bernard Ginn, Karim Hadad: Noise source identification techniques: simple to advanced applications, bulletin of the conference Acoustics 2012, p. 1781-1786, 23 -27 April 2012, Nantes, France.
PULSE Array-based Noise Source Identification solutions, http://www.bksv.com/doc/bp2144.pdf, 14 July 2016.
Standard IEEE 1451.4-2004.
Vladimir Hájek: Using LAN-Xi for Sound and Vibration Measurements, bulletin of the conference Acoustics High Tatras 2009, 28 - 30 September 2009, High Tatras, Slovakia.
Jacob Juhl Christensen, Jorgen Hald: Beamforming, Brüel & Kjaer Technical Review, p. 1-48, No. 1, Year 2004.
Jorgen Hald: Spatial Transformation of Sound Fields in the Automotive Industry, Brüel & Kjaer Technical Review, p. 1-24, No. 1, Year 1995.
Jorgen Hald: Wideband acoustical holography, bulletin of the conference Inter-noise 2014, p. 44-57, 16 -19 November 2014, Melbourne, Australia.
Jurij Munda, Damjan Zazula, Nikola Holeček: Delovanje sistema S-Cube za aktivno dušenje zvokov v pravokotnem akustičnem kanalu, (Functioning of the S-Cube system for active sound damping in a rectangular acoustic channel) bulletin of the conference ERK 2015, Vol. A, p. 315-318, 21 - 23 September 2015, Portorož, Slovenia.
Jeon JY, You J, Chang HY. (2007) Sound radiation and sound quality characteristics of refrigerator noise in real living environments. Applied Acoustics 2007;68(10):1118–34.
Jeon JY, Ryu JK. (2006) Allowable noise levels of residential noises. Inter-Noise, Honolulu, Hawaii, USA.
Holeček N. (2015) Analiziranje in zmanjševanje hrupa gospodinjskih aparatov. (Domestic appliance noise level analysis and reduction.) Gorenje – information bulletin 1-3 / 2015, Velenje.
Koruk H., Arisoy A. (2014) Identification of crack noises in household refrigerators. Applied Acoustics 89 (2015) 234–243
http://www.dailymail.co.uk/sciencetech/article-2950678/Mystery-fridge-s-strange-NOISES-solved-Scientists-finally-trace-source-loud-sounds-haunt-kitchens-night.html
Holeček N. (2016) Iskanje virov hrupa z uporabo akustičnih senzorjev in mikrofonske matrike. (Search for sources of noise by means of acoustic sensors and microphone array.) Gorenje – information bulletin 4-6 / 2016, Velenje.
Bek M, Holeček N. (2015) Poročilo o preizkusu AH (AH Test Report) 0815.66-69.0002. Gorenje, Velenje
Crocker J.W. (1998) Handbook of Acoustics. John Wiley & Sons, USA
DOI: https://doi.org/10.22190/FUWLEP1702115H
Refbacks
- There are currently no refbacks.
ISSN 0354-804X (Print)
ISSN 2406-0534 (Online)