EXPERIMENTAL STUDY ON MOBILITY OF A VEHICLE WITH CTIS IN SOFT SOIL

다국어 초록 (Multilingual Abstract)

Recently, the domestic military vehicles currently being developed are installed with a central tire inflationsystem (CTIS) to control the pressure of tires to increase the contact area between the tires and the ground and improvemobility on soft soils. On the other hand, it is difficult to find technical data based on experiments for designing a CTIS. Inthis study, to obtain the technical data to set proper pressures according to road conditions a range of mobility tests wereperformed on soft soil roads, such as sand and clay, according to the CTIS operating modes to obtain the technical data to setproper pressures according to the road conditions. The characteristics of the mobility and its correlation with the tire pressuresin each operating mode were analyzed. The results confirmed that a wheeled vehicle with a CTIS showed better performanceon soft soil than a vehicle without a CTIS.

참고문헌 (Reference)

1 Way, T. R., "Tractor tire aspect ratio effects on soil stresses and rut depths" 40 (40): 4-, 1997

2 Aberdeen Test Center, "Tracked-vehicle Soft Soil Mobility"

3 Hetherington, J. G., "Tracked vehicle operations on sand investigations at model scale" 42 : 65-70, 2005

4 Way, T. R., "Three single wheel machines for traction research" ASABE 2007

5 Wong, J. Y., "Theory of Ground Vehicles" Wiley &Sons 2001

6 Hetherington, J. G., "The measurement of ground pressure under wheeled vehicles" RMCS 1997

7 Barton, P. C., "The influence of prediction formular on wheeled AFV design" 1998

8 Hetherington, J. G., "The applicability of the MMP concept in specifying off-road mobility for wheeled and tracked vehicles" 38 : 63-70, 2001

9 Wong, J. Y., "Terramechanics and Off-road Vehicles" Elsevier 2009

10 Bailey, A. C., "Soil stresses under a tractor tire at various loads and inflation pressures" 33 : 1-11, 2009

11 Maclaurin, E. B., "Proposed revisions to MMP based on the results of tractive performance trials with single pneumatic tyres and a modular track system"

12 Keller, R. R., "Operational testing of central tire inflation systems proves the benefits of low tire pressure in logging operations" SAE 1993

13 Grant, G., "Off-Road Vehicle Locomotion Using Bekker’ s Model" US Army TARDEC 1990

14 Aberdeen Test Center, "Drawbar Pull on Hard Surface"

15 Aberdeen Test Center, "Drawbar Pull 4. 2 Drawbar PLL on Hard Surface"

16 Douglas, R. A., "Contact pressures and energies beneath soft tires:Modeling the effects of CTI-equipped heavy truck traffic on road surfaces" 1819 (1819): 221-227, 2003

17 Kaczmarek, R. W., "Central tire inflation systems (CTIS) - A means to enhance vehicle mobility" 1984

18 Adams, B. T., "Automatic Central Tire Inflation System"

19 Hethrington, J. G., "An investigation of pressure under wheeled vehicles" 39 : 85-93, 2002

20 Freitag, D. R, "A dimensional analysis of the performance of pneumatic tires on soft soils" USAE Waterways Experiment Station 688-, 1965