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LASHGARI, M., MALEKI, A.. (1393). Sound Quantity and Quality of Sampo 3065 Combine Harvester. , 33(1), 73-86. doi: 10.22099/iar.2014.2392
M. LASHGARI; A. MALEKI. "Sound Quantity and Quality of Sampo 3065 Combine Harvester". , 33, 1, 1393, 73-86. doi: 10.22099/iar.2014.2392
LASHGARI, M., MALEKI, A.. (1393). 'Sound Quantity and Quality of Sampo 3065 Combine Harvester', , 33(1), pp. 73-86. doi: 10.22099/iar.2014.2392
LASHGARI, M., MALEKI, A.. Sound Quantity and Quality of Sampo 3065 Combine Harvester. , 1393; 33(1): 73-86. doi: 10.22099/iar.2014.2392

Sound Quantity and Quality of Sampo 3065 Combine Harvester

Iran Agricultural Research
مقاله 7، دوره 33، شماره 1، آذر 2014، صفحه 73-86    اصل مقاله (460.08 K)
نوع مقاله: Full Article
شناسه دیجیتال (DOI): 10.22099/iar.2014.2392
نویسندگان
M. LASHGARI* 1؛ A. MALEKI2
1Arak University
2Shahrekord University
چکیده
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.
کلیدواژه‌ها
Keywords: Combine Harvester؛ Loudness Level and Sound Pressure Level؛ Noise
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