Energy consumption for the combined movement of an experimental vehicle on a deformable surface

Abstract

Introduction. The combined method of transportation assumes the ability for an experimental vehicle to move by rolling on the bases with a load-bearing capacity sufficient for adhesion and walking, provided that the load-bearing capacity to move in the first way is not enough. The combined method of movement allows, without the use of external sources of energy and attachment to surrounding objects on the ground, to increase the cross-country ability of an experimental vehicle, which is determined in the study by the indicators of work spent on soil deformation when moving by rolling and walking methods.

Object. The object of the study is the results of energy costs when moving by rolling and walking methods of an experimental vehicle.

Materials and methods. Energy costs for movement in a combined way are defined as the work spent on soil deformation when overcoming the test section using the rolling and walking methods. Based on the results of the study, dependency graphs were constructed and conclusions were drawn.

Results and conclusions. A comparative analysis of the results of theoretical studies of the energy costs of moving using a combined method showed that when moving using the rolling method, compared to the walking method, significantly more work is spent on soil deformation when moving, and that moving using the walking method allows the vehicle to get out without the use of external energy sources and continue a similar movement along the base with a weak load-bearing capacity until its adhesion properties allow you to switch to a higher-speed method of movement – rolling.