[1] Pang Han, Zhang Weigong, Wang Xia,. FEM tire model oriented to virtual experimentof off-road vehicle trafficability [J]. Journal of Southeast University (English Edition), 2007, 23 (4): 540-544. [doi:10.3969/j.issn.1003-7985.2007.04.013]

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FEM tire model oriented to virtual experimentof off-road vehicle trafficability()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

23

Issue:

2007 4

Page:

540-544

Research Field:

Traffic and Transportation Engineering

Publishing date:

2007-12-30

Info

Title:

FEM tire model oriented to virtual experimentof off-road vehicle trafficability

Author(s):

Pang Han¹;  Zhang Weigong¹;  Wang Xia²

¹School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China
²Department of the Computer, Taishan University, Taian 271000, China

Keywords:

trafficability;  tire model;  viscoelasticity;  six-dimensional wheel force transducer

PACS:

U467.1

DOI:

10.3969/j.issn.1003-7985.2007.04.013

Abstract:

In order to estimate the trafficability of off-road vehicles, the linear relationships between the pressure and the stiffness of the tire and the action of the vertical tire force with the viscoelasticity are analyzed. The method to improve the precision of the model by the coefficients is presented. The constitutive equation of the three-parameter linear model and the stiffness matrix of four-node isoparametric elements are derived to construct the FEM(finite element method)tire model in plan stress. A demarcation and verification system is designed based on the six-dimensional wheel force transducer and the vertical tire force is measured under different velocities. The results show that the model and the method proposed are reasonable.

References:

[1] Mousseau C W.Vehicle dynamics simulations with coupled multibody and finite element models[J].Finite Elements in Analysis and Design, 1999, 31:295-315.
[2] Fervers C W.Improved FEM simulation model for tire-soil interaction[J].Journal of Terramechanics, 2004, 41(2/3):87-100.
[3] He Y, Cremer J, Papelis Y.Real-time extendible-resolution display of on-line dynamic terrain[C]//Proc Graphics Interface.Calgary, Alta, Canada, 2002:151-160.
[4] Tsai F F, Haug E J.Real-time multibody system dynamic simulation:Part Ⅰ.a modified recursive formulation and topological analysis[J].Mechanics of Structures and Machines, 1991, 19(1):99-127.
[5] Horner D A, Peters J F, Carrillo A.Large scale discrete element modeling of vehicle-soil interaction[J].Eng Mech, 2001, 127(10):1027-1032.
[6] Witus Gary, Karlsen Robert, Overholt James, et al.Forecasting off-road trafficability from terrain appearance[C]//Proceedings of SPIE.Bellingham, 2005:217-226.
[7] Ojeda Lauro, Borenstein Johann, Witus Gray.Terrain trafficability characterization with a mobile robot[C]//Proceedings of SPIE.Bellingham, 2005:235-243.
[8] Pan Weidong, Papelis Yiannis, He Yefei.A vehicle-terrain system modeling and simulation approach to mobility analysis of vehicles on soft terrain[C]//Proceedings of SPIE.Bellingham, 2004:520-531.

Memo

Memo:

Biographies: Pang Han(1977—), male, graduate;Zhang Weigong(corresponding author), male, doctor, professor, zhangwg@seu.edu.cn.

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