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논문 기본 정보

자료유형
학술저널
저자정보
Cuong, Do Minh (Department of Mechanical Engineering, University of Agriculture and Forestry, Hue University) Ngoc, Nguyen Thi (Department of Mechanical Engineering, University of Agriculture and Forestry, Hue University) Ran, Ma (School of Mechanical and Electrical Engineering, Jiangsu Normal University) Sihong, Zhu (College of Engineering, Nanjing Agricultural University)
저널정보
테크노프레스 Coupled systems mechanics Coupled systems mechanics 제7권 제4호
발행연도
2018.1
수록면
395 - 406 (12page)

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This paper proposes a linear damping model of tire-soil system using semi-empirical method. A test rig was designed and developed to measure the vertical equivalent linear damping ratio of tire only and tire-soil system using Free-Vibration Logarithmic Decay Method. The test was performed with two kinds of tractor tires using a combination of five inflation pressure levels, two soil depths and four soil moisture contents in the paddy soil. The results revealed that the linear damping ratio of tires increased with decreasing tire inflation pressure; the linear damping ratio of tire-soil system also increased with decreasing tire inflation pressure and increased with the increasing soil depth (observed at 80 and 120 mm). It also increased with a relative increase of soil moisture contents (observed at 37.9%, 48.8%, 66.7% and 77.4%). The results also indicated that the damping ratio of tire-soil system was higher than that of tire only. A linear damping model of tire-soil system is proposed as a damping model in parallel which is established based on experimental results and vibration theory. This model will have a great significance in study of tractor vibration.

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