A Study on Wheel Sinkage and Rolling Resistance with variations in wheel geometry for Plain and Lugged wheels on TRI -1 Soil Simulant

International Conference on Recent Advances in Materials, Mechanical and Civil Engineering

材料科学;机械制造;土木建筑工程

Kumar, Pala Gireesh^1 ; Jayalekshmi, S.^1

Department of Civil Engineering, National Institute of Technology, Tiruchirappalli

Tamil Nadu

620015, India^1

关键词: Gaining momentum;    In-wheel;    Lunar soil simulant;    Terramechanics;    Wheel-soil interactions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/330/1/012127/pdf
DOI  :  10.1088/1757-899X/330/1/012127

来源: IOP

【 摘 要 】

Wheel-soil Interaction studies are gaining momentum in the field of Terramechanics, but the basis is Terzaghi's bearing capacity equation. For the current study, on a lunar soil simulant TRI - 1, two plain rigid wheels are considered, i.e., small wheel (dia. of 210 mm and width of 50 mm) and large wheel (dia. 160 mm and width 32 mm). Also, different number of lugs (N = 8, 12, 16) with various lug heights (h = 5 mm, 10 mm, 15 mm) are used. In this paper, the variation of wheel sinkages from experiments obtained for various wheel weights are examined and presented. The parameter, Coefficient of rolling resistance (CRR) is determined for various cases. Hence, rolling resistance was determined and examined from the obtained CRR for all cases. Among the cases examined, the large wheel with weight 67.44 N for plain wheels and weight 67.85 N for lugged wheel (no. of lugs = 16, and height of lugs = 5 mm) registered better mobility. Similarly, for small wheel with weight 52.189 N for plain wheel and weight 52.481 N for lugged wheel (no. of lugs = 16, and height of lugs = 5 mm) registered better mobility, a lesser rolling resistance for these cases.