Experimental Approaches for the Characterization of the Vibroacoustic Behaviour of a Domestic Coffee Apparatus

The growing demand for more comfortable and quieter household appliances reflects increasing customer expectations for enhanced user experiences. In a competitive market, manufacturers are continuously seeking innovations that balance performance with noise reduction. To address this demand, experimental methodologies that characterize the vibroacoustic behaviour of devices can provide valuable support during the design phase. In this context, this paper focuses on a domestic coffee apparatus for coffee preparation as a case study to analyse its vibroacoustic behaviour, evaluating the acoustic emissions during operation and demonstrating the effectiveness of vibroacoustic testing for enhanced design insights. Noise and vibration measurements are conducted in a semi-anechoic chamber using accelerometers, microphones, a sound camera and a 3D sound intensity probe. The results of the proposed methodology highlight its potential for improving the acoustic performance of similar devices.