Acoustic analysis of the drainage cycle in a washing machine
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| Format: | Artículo científico |
| Langue: | en |
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Universidad Nacional de Colombia
2015
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| _version_ | 1876465233033166848 |
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| author | Juan Lladó-Paris |
| author_facet | Juan Lladó-Paris |
| contents | Acoustic analysis of the drainage cycle in a washing machine Juan Lladó-Paris Beatriz Sánchez-Tabuenca Ingeniería Pump drainage structure borne sound power Washing machine manufacturers are working towards producing quieter appliances as many people consider noise emission a key factor when buying. Although the spinning cycle is the noisiest, the amount of noise the pump makes is the cause for many users’ complaints. In an attempt to reduce the noise emitted when a washing machine is pumping out, an experimental study was performed. First, the measurement of the sound pressure allowed us to identify the main sources of noise as the electric motor and the vibration of the cabinet. Next, a detailed analysis based on the measurement of the vibration of the cabinet provided information about the predominant radiating panels. It was also inferred that the electromagnetic noise is drowned out by the structure-borne noise. Finally, several proposals to diminish the sound power were analyzed, and a reduction of 3 dBA was achieved by decreasing the contact zone of the pump with the kick plate. 2015 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49637154016 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.190 Vol.82 |
| format | Artículo científico |
| id | redalyc_49637154016 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Acoustic analysis of the drainage cycle in a washing machine Juan Lladó-Paris Ingeniería Pump drainage structure borne sound power Acoustic analysis of the drainage cycle in a washing machine Juan Lladó-Paris Beatriz Sánchez-Tabuenca Ingeniería Pump drainage structure borne sound power Washing machine manufacturers are working towards producing quieter appliances as many people consider noise emission a key factor when buying. Although the spinning cycle is the noisiest, the amount of noise the pump makes is the cause for many users’ complaints. In an attempt to reduce the noise emitted when a washing machine is pumping out, an experimental study was performed. First, the measurement of the sound pressure allowed us to identify the main sources of noise as the electric motor and the vibration of the cabinet. Next, a detailed analysis based on the measurement of the vibration of the cabinet provided information about the predominant radiating panels. It was also inferred that the electromagnetic noise is drowned out by the structure-borne noise. Finally, several proposals to diminish the sound power were analyzed, and a reduction of 3 dBA was achieved by decreasing the contact zone of the pump with the kick plate. 2015 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49637154016 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.190 Vol.82 |
| title | Acoustic analysis of the drainage cycle in a washing machine |
| topic | Ingeniería Pump drainage structure borne sound power |
| url | https://www.redalyc.org/articulo.oa?id=49637154016 |