IDENTIFICATION OF CRACK NOISES IN HOUSEHOLD REFRIGERATORS

Nikola Holecek, Dejan Dren

DOI Number
10.22190/FUWLEP1702115H
First page
115
Last page
127

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

free field, array microphones, acoustic measurements, crack noises

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References


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DOI: https://doi.org/10.22190/FUWLEP1702115H

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