NDLI: Numerical analysis of lug effects on tractive performance of off-road wheel by DEM

Content Provider	Springer Nature Link
Author	Zhang, Yuanchao Du, Yonghao Jiang, Lehua Gao, Jingwei
Copyright Year	2016
Abstract	This paper presents the lug effects of off-road wheel in terms of lugs’ height, type, intersection and central angle. To improve the tractive performance of transport vehicles and equipments operating on dry sands nearshore, this paper numerically presents the wheel–sand interaction by the discrete element method (DEM), which is better dynamically accurate than FEM in the study of incompact terrain-like sands. According to the physical properties presented by the triaxial test, the appropriate parameters are selected to establish and verify the simulation model of the sand sample. On that basis, numerical traction tests are orthogonally carried out to analyze the different lug effects on tractive performance. It is concluded from the analysis that the intersection of lugs has no effect on tractive performance. Lugged wheel shows the best tractive performance, while the central angle of lugs reaches 24°. Both the height and type of lugs can improve the drawbar pull; the former may increase the tractive efficiency under good road conditions with low slip, while the latter is capable of influencing the efficiency under bad road conditions with high slip.
Starting Page	1977
Ending Page	1987
Page Count	11
File Format	PDF
ISSN	16785878
Journal	Journal of the Brazilian Society of Mechanical Sciences and Engineering
Volume Number	39
Issue Number	6
e-ISSN	18063691
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-09-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Tractive efficiency Off-road wheel Lug effect Discrete element method Mechanical Engineering Drawbar pull
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Industrial and Manufacturing Engineering Automotive Engineering Mechanical Engineering Aerospace Engineering

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