Track Link-Terrain Interaction Simulation Based on Terramechanics

Abstract:

A review of terramechanics terrain models and discuss on their application in link-terrain, wheel-terrain and tire-terrain interaction are taken. Three kinds of pressure–sinkage relationship proposed by Bekker and Reece are studied. The loading and unloading is introduced in the model. And the relationship between the maximum shear stress and applied normal pressure is derived. The link tractive effort and drawbar pull at a given slip of an assumed shape and mass are deduced. Also the link moves in two dimensions. At last, the relationship of terrain sinkage vs. time, terrain pressure vs. sinkage and drawbar pull vs. slip for the link-terrain interface are simulated. The simulation is in good agreement with that got by Bekker.

• Periodical: Key Engineering Materials (Volume 572)
• Pages: 640-643
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.572.640
• Online since: September 2013
• Authors: Guang Bu Li, Li Dai, Ming Hua Xu, Feng Ying Shi
• Keywords: Drawbar Pull, Pressure-Sinkage, Simulation, Terramechanics

References

[1] Bekker, M.G.: Introduction to Terrain-Vehicle Systems (The University of Michigan Press, Ann Arbor, 1969).

[2] Janosi Z; Hanamoto B: The analytical determination of drawbar pull as a slip for tracked vehicles in deformable soils. In: Proceedings of the 1st international conference on the mechanics of soil-vehicle systems (Torino, Italy, 1961).

[3] Reece A: Principles of soil-vehicle mechanics. Institution of Mechanical Engineers. Vol. 180 (1965), pp.45-60.

[4] Garber M, Wong JY: Prediction of ground pressure distribution under tracked vehicles – Part I. An analytical method for predicting ground pressure distribution. Journal of Terramechanics, Vol. 18 (1981), p.1–23.

DOI: 10.1016/0022-4898(81)90015-x

[5] Wong J.Y.: Terramechanics and Off-Road Vehicle Engineering (Oxford, UK: Elsevier, 2010).