Mechanical elastic wheel improving road holding and wear resistance of tire

In this study, the static contact behavior of mechanical elastic wheel was investigated as a function of vertical loading and was compared with that of a pneumatic tire. The special suspended hub loaders of mechanical elastic wheel were employed to reduce the contact stiffness and increase contact a...

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Bibliographic Details
Published inNong ye gong cheng xue bao Vol. 30; no. 12; pp. 56 - 63
Main Authors Zang, Liguo, Zhao, Youqun, Li, Bo, Wang, Jian, Du, Xianbin
Format Journal Article
LanguageChinese
Published 15.06.2014
Subjects
Agricultural engineering
Computer simulation
Contact
Finite element method
Mathematical analysis
Mathematical models
Tires
Wheels
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Summary:In this study, the static contact behavior of mechanical elastic wheel was investigated as a function of vertical loading and was compared with that of a pneumatic tire. The special suspended hub loaders of mechanical elastic wheel were employed to reduce the contact stiffness and increase contact area so that a stable friction was obtained. An analytical model for a non-pneumatic mechanical elastic wheel on rigid ground is presented. The model consists of a thin flexible annular outer ring and hinge units that connect the outer ring to a rigid hub. The results of analytical model and three-dimensional nonlinear finite element model were validated by the load characteristic test of mechanical elastic wheel. The trend of tested results were consistent with simulation results and analytical results. The prototype experiment confirmed the analytic model and the finite element model rationality. Finite element methods were used to analyze the contact pressure distribution and grip performance in static loading.
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ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.12.007