Proceedings of the Korean Society for Agricultural Machinery Conference (한국농업기계학회:학술대회논문집)
- 2000.11b
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- Pages.132-138
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- 2000
Characteristics of transmission efficiency in power driveline of agricultural tractors
- I. H. Ryu (School of Biological Resources and Materials Engineering College of Agriculture and Life Sciences, Seoul National University) ;
- Kim, D. C. (School of Biological Resources and Materials Engineering College of Agriculture and Life Sciences, Seoul National Universit) ;
- Kim, K. U. (School of Biological Resources and Materials Engineering College of Agriculture and Life Sciences, Seoul National University)
- Published : 2000.11.01
Abstract
Complex gear shifting and high speed-reduction ratio reduce the transmission efficiency in power driveline of agricultural tractors. According to a field test, the power transmission efficiency of a tractor in transporting operations was estimated about 70%. However, the actual efficiency was found by the experiment to fluctuate in a range of 56 to 87%. Therefore, the constant efficiency model commonly used for a simulation of power drivelines is not likely to simulate its performance more accurately. In order to predict power transmission efficiency more accurately, a new model was proposed and the new concepts of the maximum efficiency and sticking torque were introduced. The error mean between the measured and the predicted efficiencies was about 2.3% in mean. The new model reflecting the transmission characteristics in the power driveline of tractors could be used to analyze and predict the power transmission performance of tractors more accurately.