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Acoustic noise source identification: a study on a household refrigerator during the starting of a reciprocating compressor

Montoya Ospina, Santiago (2019) Acoustic noise source identification: a study on a household refrigerator during the starting of a reciprocating compressor. Maestría thesis, Universidad Nacional de Colombia - Sede Medellín.

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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.

Tipo de documento:Tesis/trabajos de grado - Thesis (Maestría)
Colaborador / Asesor:Correa Gutiérrez, Rosa Elvira and Jiménez Mejía, Raúl Esteban
Palabras clave:Source contribution, Sound radiation, Transfer Path Analysis, Finite-Diference Time-Domain, Airborne sound, Structure-borne sound
Temática:6 Tecnología (ciencias aplicadas) / Technology > 62 Ingeniería y operaciones afines / Engineering
Unidad administrativa:Sede Medellín > Facultad de Minas > Escuela de Ingeniería Eléctrica y Mecánica
Código ID:72707
Enviado por : Santiago Montoya Ospina
Enviado el día :25 Junio 2019 16:30
Ultima modificación:25 Junio 2019 16:30
Ultima modificación:25 Junio 2019 16:30
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