Control of Acoustic Vibrations Inside Refrigerator Compressors by Means of Resonators

This work deals with the effect of a Helmholtz resonator on the acoustic vibration inside the cavity of a domestic refrigerator compressor. A multi-mode analytical model is developed and some analyses are carried out showing the influence of resonator parameters on the acoustic behaviour of the cavity. Then the results of the tests which were performed on an industrial compressor during its actual working are discussed and compared with theoretical results.