DOI QR코드

DOI QR Code

Track System Interactions Between the Track Link and the Ground

궤도시스템의 궤도링크와 연약지반과의 상호 접촉연구

  • Published : 2004.11.01

Abstract

When the tracked vehicle is running on various types of terrain, the physical properties of the interacting ground can be different. In this paper, the interactions between track link and soft soil ground are investigated using static sinkage theory of soil ground. Grouser surfaces of a track link and triangular patches of ground are implemented for contact detection algorithm. Contact force at each segment area of a track link is computed respectively by using virtual work concept. Bekker's static soil sinkage model is applied for pressure-sinkage relationship and shear stress-shear displacement relationship proposed by Janosi and Hanamoto is used for tangential shear forces. The repetitive normal loads of a terrain are considered because a terrain element is subject to the repetitive loading of the roadwheels of a tracked vehicle. The methods how to apply Bekker's soil theory for multibody track system are proposed in this investigation and demonstrated numerically by high mobility tracked vehicle.

Keywords

Tracked Vehicle;Track System;Triangular Patch;Better's Theory;Terramechanics

References

  1. Wills, B. M. D., 1963, 'The Measurement of Soil Strength and Deformation Moduli and a Comparison of the Actual and Theoretical Performance of a Family of Rigid Tracks,' Journal of Agricultural Engineering Research, Vol. 8, No.2, pp. 115-131
  2. Bekker, M. B., 1969, 'Introduction to Terrain-Vehicle Systems,' University of Michigan Press
  3. Rowland, D., 1972, 'Tracked Vehicle Ground Pressure and Its Effect on Soft Ground Performance' in Proc. 4th Int. Conf. of the International Society for Terrain-Vehicle systems, Vol. I, Stockholm, Sweden
  4. Garber, M. and Wong, J. Y., 1981, 'Prediction of Ground Pressure Distribution Under Tracked Vehicles-I. An Analytical Method for Predicting Ground Pressure Distribution', Journal of Terramechanics, Vol. 18, No.1, pp. 1-23 https://doi.org/10.1016/0022-4898(81)90015-X
  5. Wong, J. Y., 2001, 'Theory of Ground Vehicles,' 3rd Ed. John Wiley&sons
  6. Park, W. Y. and Lee, K. S., 1998, 'Development of Tractive Performance Prediction Model for Flexible Tracked Vehicles,' Ph.D. SungKyunKwan University
  7. Choi, J. H., 1996, 'Use of Recursive and Approximation Methods in The Dynamic Analysis of Spatial Tracked Vehicle,' Ph.D. Thesis, The University of Illinois at Chicago
  8. Ryu, H. S., Bae, D. S., Choi, J. H. and A. Shabana, 2000, 'A Compliant Track Model For High Speed, High Mobility Tracked Vehicle,' International Journal For Numerical Methods in Engineering, Vol. 48, pp. 1481-1502 https://doi.org/10.1002/1097-0207(20000810)48:10<1481::AID-NME959>3.0.CO;2-P
  9. Ryu, H. S., 2004, 'Investigation of the Dynamic Tension and Behavior for Three Dimensional High Mobility Tracked Vehicles,' Ph.D. Thesis, Hanyang University
  10. Ryu, H. S., Huh, K. S., Choi, J. H. and Bae, D. S., 2003, 'Development of A Multibody Dynamics Simulation Tool for Tracked Vehicles, Part I : Efficient Contact and Nonlinear Dynamic Modeling,' JSME International Journal, Series C, Vol. 46, No.2, pp. 540-549 https://doi.org/10.1299/jsmec.46.540
  11. Choi, J. H., Ryu, H. S. and Bae, D. S., 1999, 'A Compliant Double Pin Track Link Model For Multibody Tracked Vehicles,' Proceedings of DETC'99, 1999 ASME Design Engineering Technical Conferences, September 12-16, Las Vegas, Nevada, USA, DETC99/VIB-8199
  12. Choi, J. H., Park, D. C., Ryu, H. S., Bae, D. S. and Huh, G. S., 2001, 'Dynamic Track Tension of High Mobility Tracked Vehicles,' Proceedings of DETC'01, ASME 2001 Design Engineering Technical Conference and Computers and Information in Engineering Conference, September 9-12, Pittsburgh, PA, USA, DETC2001/VIB-21309