Prediction of sinkage for wetland vehicles |
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| Authors: | Pan Jun-Zheng Ji Chang-Ying |
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| Institution: | 1. Professor, Agricultural Engineering College, Nanjing Agricultural University, Nanjing, Jiangsu, People''s Republic of China;2. MScAE, Lecturer, Agricultural Engineering College, Nanjing Agricultural University, Nanjing, Jiangsu, People''s Republic of China;1. University of Carthage, Laboratory of Sciences and Technologies of the Environment, Higher Institute Sciences and Technologies of the Environment, Tunisia;2. University of Sfax, Laboratory of Probabilities and Statistic, Faculty of Sciences of Sfax, Tunisia;3. Agricultural Extension and Training Agency, Tunisia;4. College of Computer Science, King Khalid University, Abha, Saudi Arabia |
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| Abstract: | A kind of rheometer is developed by the authors, with which the rheological parameters for paddy soils can be measured in situ. The optimum area of the measuring disk for this apparatus, which is about 38.5 cm2, is determined according to the principle of fuzzy analysis on experimental results, and the effect of impact load is found by experiments.Tests are made with this apparatus for cracked and tyre-wheeled wetland vehicles moving in paddy fields. The predicted and measured sinkages for both vehicles are compared. The results show that for the tracked vehicle, there is not much difference between the predicted and measured sinkages, while for the wheeled vehicle, the predicted sinkages are less than the measured ones, perhaps due to the fact that the slip of the wheel is greater than that of the track, and the sinkage due to slip is quite significant. |
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