Analysis of Combine Harvester Sound Pressure Level in One-Third Octave Band Frequency
Journal Title: Journal of Agricultural Machinery - Year 2014, Vol 4, Issue 2
Abstract
Workplace factors such as sound must have the minimum impact on the operators of combine harvester, so that they can guide and control many functions of the combine. In this study, some factors affecting the noise generated by two combine harvesters John Deere 1055 and Sampo 3065 were evaluated. Research factors were engine speed, gear ratios, type of operation and microphone distance. The results of this study indicated that sound pressure level decreased with increasing center frequencies. The sound pressure level of John Deere and Sampo combine at center frequency of 4000 Hz were 87.96 and 84.73 db, respectively. The results showed also that the maximum sound pressure of John Deere and Sampo combines were116db at frequency of 250 Hz and 111.1db at frequency of 40 Hz, respectively.
Authors and Affiliations
A. Maleki,M. Lashgari,
Keywords
Related Articles
- EP ID EP717710
- DOI -
- Views 34
- Downloads 0
Prediction of lateral surface, volume and sphericity of pomegranate using MLP artificial neural network
Introduction: Fast and accurate determination of geometrical properties of agricultural products has many applications in agricultural operations like planting, cultivating, harvesting and post-harvesting. Calculations r...
The Effect of Load and Inflation Pressure of a Stiff-Carcass Tyre on selected Soil Compaction Related Factors
Soil compaction can occur as a result of a number of factors. One of the most important factors is soil response to pressures imposed by wheels and soil engaging tools. This research investigated the effect of tyre load...
The effect of fan speed control system on the inlet air temperature uniformity in a solar dryer
Introduction: Drying process of agricultural products, fruits and vegetables are highly energy demanding and hence are the most expensive postharvest operation. Nowadays, the application of control systems in different...
Investigating the Energy Consumption and Economic Indices for Sweet-Cherry and Sour-Cherry Production in Northeastern Iran
The aim of this study was to investigate the energy consumption and production costs of sweet-cherry and sour-cherry in Northeastern Iran. Required data were collected from 75 sweet-cherry and 42 sour-cherry producers. T...
Study on Drying Process of Farmed Shrimp Meat in a Hot Air Convective Dryer and Variation of Some Related Parameters
IntroductionDrying shrimp is one of the storage methods that, while increasing the shelf life, leads to the production of a versatile product with various uses, from consumption as snacks to use as one of the main compon...