Passability and traction characteristics of multipurpose wheeled vehicles when driving on with a weak bearing capacity soils
Abstract
Introduction. Traction characteristics are one of the main properties of multi-purpose wheeled vehicles (MPWV), determining their permeability in difficult operating conditions, in particular on soils with a weak bearing capacity. The latter include various categories of peat bog soils, which differ in the depth of the peat mass, cover and plant residues, origin and humidity. One of the most important physical and mechanical properties of peat-bog soils, which determine traction and grip properties and MPWV passability, are soils resistance to compression and shear under dynamic load and humidity action. The subject of the theoretical study is the effect of these parameters on MPWV traction and grip properties and its passability.
The purpose of the study is to study and determine the influence of the physical and mechanical properties of peat-marsh soils on traction and grip characteristics and MPWV passability when moving along the soils under load.
Methodology and research methods. In the theoretical study modern ideas concerning the deformation of peat-bog soils under the influence of external loads were used. The real drive wheel was replaced with a larger-diameter rigid wheel, which made it possible, with a sufficient degree of accuracy, to obtain analytical dependencies for determining traction characteristics and maneuverability of the wheel drive module.
Results and scientific novelty. The processes of interaction of the wheel with the ground surface have been considered from a new viewpoint, which made it possible to determine the rational dimensions of the wheel propulsion unit, depending on the load and the physical and mechanical properties of the peat-bog soil.
Practical significance. The results of the theoretical study allowed to determine the wheel propulsion optimal parameters of the designed machine of a certain dimension, intended for movement on weak soils.
About the Authors
V. V. Gus’kov
Belarusian National Technical University
Belarus
Belarus
D.Sc. (Eng), professor. Honored Worker of Science and Technology of the BSSR, laureate of the State Prize of the Republic of Belarus in the field of science and technology, Professor of Department “Tractors”
Minsk 220027
A. S. Povarekho
Belarusian National Technical University
Belarus
Belarus
PhD (Eng), associate professor, associate professor of Department “Tractors”1 , Head of Department “Automobile development and tractor development” of BNTU “Research Polytechnic Institute”
Minsk 220051
References
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6. Gus’kov V.V. [Optimum parameters of agricultural tractors]. Moscow, Mashinostroenie Publ., 1966. 195 p. (In Russian)
Review
For citations:
Gus’kov V.V., Povarekho A.S. Passability and traction characteristics of multipurpose wheeled vehicles when driving on with a weak bearing capacity soils. Trudy NAMI. 2019;(2):24-31. (In Russ.)
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