Acoustic noise source identification: a study on a household refrigerator during the starting of a reciprocating compressor
This thesis deals with the analysis of the sound radiated by a household refrigerator when a reciprocating compressor starts its operation. The study was developed based on theoretical analysis by means of numerical simulations and on a phenomenology basis by means of experimental tests performed on...
- Autores:
-
Montoya Ospina, Santiago
- Tipo de recurso:
- Fecha de publicación:
- 2019
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/76379
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/76379
http://bdigital.unal.edu.co/72707/
- Palabra clave:
- Source contribution
Sound radiation
Transfer Path Analysis
Finite-Diference Time-Domain
Airborne sound
Structure-borne sound
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | This thesis deals with the analysis of the sound radiated by a household refrigerator when a reciprocating compressor starts its operation. The study was developed based on theoretical analysis by means of numerical simulations and on a phenomenology basis by means of experimental tests performed on a real refrigerator under transient conditions during its startup. The simulations was supported on the Finite-Di_erence Time-Domain method for modeling airborne and structure-borne sound phenomena and the measurements were carried out in an engineering acoustic chamber with semi-anechoic characteristics. The main objective of this work is to estimate what are the paths of principal contribution to the sound radiated by the refrigerator under transient operation: directly through the air or indirectly from the compressor through the structure cabinet of the refrigerator. |
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