Off-campus South Dakota State University users: To download campus access theses, please use the following link to log into our proxy server with your South Dakota State University ID and password.
Non-South Dakota State University users: Please talk to your librarian about requesting this thesis through interlibrary loan.
Document Type
Thesis - University Access Only
Award Date
1990
Degree Name
Master of Science (MS)
Department / School
Agricultural Engineering
Abstract
A new method of predicting the drawbar pull developed by agricultural tractors was designed and evaluated. A single wheel tester, similar to a rear tire of a tractor, was used to establish topsoil traction conditions by loading it with known loads and measuring the maximum transferable torque. This resulted in a linear relationship between torque and wheel load. The slope of this line represents, therefore, a certain topsoil condition. When used with the soil parameters bulk density and moisture content, the prediction of tractor coefficient of traction in relation to wheel slip was shown to be more accurate than the standard Wismer and Luth equation recommended by ASAE (ASAE, 1988).
Library of Congress Subject Headings
Tractors -- Tires
Traction-Engines -- Performance
Soil physics
Format
application/pdf
Number of Pages
101
Publisher
South Dakota State University
Recommended Citation
Wittig, Volker, "Prediction of Tractor Drawbar Pull on Agricultural Soils" (1990). Electronic Theses and Dissertations. 5358.
https://openprairie.sdstate.edu/etd/5358