ABSTRACT- Noise is considered as one of the most debilitating conditions in farming operations. In this study, a number of factors affecting the noise generated by Sampo 3065 combine harvesters were evaluated. Factors were engine speed and gear ratio for combines with and without original cabins. A factorial experiment arranged as a completely randomized design with four replicates was used. Results indicated that loudness level correlated strongly with A-weighted sound pressure level (R2=0.99) but had a weak relationship with linear sound pressure level (R2 = 0.60). Other results showed that original cabins decreased 30.5, 22.8 and 5.4 percent of the loudness level, A-weighted and linear sound pressure levels, respectively. Mean value averages for loudness level, A-weighted and linear sound pressure levels for high engine speed were 6.9, 9.1 and 11.1 percent higher than those at low engine speed.
LASHGARI, M. and MALEKI, A. (2014). Sound Quantity and Quality of Sampo 3065 Combine Harvester. Iran Agricultural Research, 33(1), 73-86. doi: 10.22099/iar.2014.2392
MLA
LASHGARI, M. , and MALEKI, A. . "Sound Quantity and Quality of Sampo 3065 Combine Harvester", Iran Agricultural Research, 33, 1, 2014, 73-86. doi: 10.22099/iar.2014.2392
HARVARD
LASHGARI, M., MALEKI, A. (2014). 'Sound Quantity and Quality of Sampo 3065 Combine Harvester', Iran Agricultural Research, 33(1), pp. 73-86. doi: 10.22099/iar.2014.2392
CHICAGO
M. LASHGARI and A. MALEKI, "Sound Quantity and Quality of Sampo 3065 Combine Harvester," Iran Agricultural Research, 33 1 (2014): 73-86, doi: 10.22099/iar.2014.2392
VANCOUVER
LASHGARI, M., MALEKI, A. Sound Quantity and Quality of Sampo 3065 Combine Harvester. Iran Agricultural Research, 2014; 33(1): 73-86. doi: 10.22099/iar.2014.2392
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