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Appl. Sci. 2016, 6(11), 363;

Validation of a Numerical Model for the Prediction of the Annoyance Condition at the Operator Station of Construction Machines

Institute for Agricultural and Earthmoving Machines of the National Research Council of Italy (C.N.R.-IMAMOTER), 44124 Ferrara, Italy
Author to whom correspondence should be addressed.
Academic Editor: Jian Kang
Received: 21 September 2016 / Revised: 11 November 2016 / Accepted: 14 November 2016 / Published: 18 November 2016
(This article belongs to the Special Issue Noise and Vibration Control in the Built Environment)
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It is well-known that the reduction of noise levels is not strictly linked to the reduction of noise annoyance. Even earthmoving machine manufacturers are facing the problem of customer complaints concerning the noise quality of their machines with increasing frequency. Unfortunately, all the studies geared to the understanding of the relationship between multidimensional characteristics of noise signals and the auditory perception of annoyance require repeated sessions of jury listening tests, which are time-consuming. In this respect, an annoyance prediction model was developed for compact loaders to assess the annoyance sensation perceived by operators at their workplaces without repeating the full sound quality assessment but using objective parameters only. This paper aims at verifying the feasibility of the developed annoyance prediction model when applied to other kinds of earthmoving machines. For this purpose, an experimental investigation was performed on five earthmoving machines, different in type, dimension, and engine mechanical power, and the annoyance predicted by the numerical model was compared to the annoyance given by subjective listening tests. The results were evaluated by means of the squared value of the correlation coefficient, R2, and they confirm the possible applicability of the model to other kinds of machines. View Full-Text
Keywords: annoyance; noise; numerical model; earthmoving machines; sound quality annoyance; noise; numerical model; earthmoving machines; sound quality

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Carletti, E.; Pedrielli, F. Validation of a Numerical Model for the Prediction of the Annoyance Condition at the Operator Station of Construction Machines. Appl. Sci. 2016, 6, 363.

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