| Author | Wimalawansa, Lal Senarath |
| Call Number | AIT Thesis no. AE-82-15 |
| Subject(s) | Tractors--Wheels
|
| Note | A thesis submitted in partial fulfilment of the requirement for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The optimum lug angle and lug spacing for cage wheels for a medium powered tractor (46 kW) was studied during this research. A pair of cage wheels was constructed with the capability to change the lug angle from 0-40 deg. at intervals of 10 deg. and lug spacings at
15, 20, 24 and 30 deg. A Massey Ferguson (MF) 165 tractor was used to test these wheels.
The tractor was made to run on a puddled clay soil plot with standing water on the surface and load was applied by towing a(MF)l35 tractor. Poor values of drawbar power and drawbar pull at 15 degrees lug spacing
(with 24 lugs) were observed due to mud trapping in between the lugs resulting in the cage wheels becoming mud balls. Likewise several combinations of lug angles and spacings led to bogging down of the tractor causing 100% wheel slip or the front end rising dangerously.
The results showed that of the combinations tested, a lug spacing of 24 deg. (15 lugs) with lug angle of 30 deg. was the best for this pair of cage wheels with lug height of 100 mm and diameter 1415 mm for this particular tractor in these field conditions. |
| Year | 1982 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Gee-Clough, D.
|
| Examination Committee(s) | Singh, Gajendra ; Rahman, Md. Ataur
|
| Scholarship Donor(s) | Royal Government of Belgium |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1982 |