The impact of drainage on terrain UGV movement

Abstract

Abstract. The drainage (hydrosphere) is one of the main elements determining the military vehicles mobility. The grade of this determination is given by width, gradient, depth and qualitative parameters of drainage on overall forms of its occurrence. The goal of this paper is the identification of main geographical factors and parameters of drainage that affect the modelling of cross-country movement. In paper are included some classifications of overall coverages of terrain by a drainage, drainage structure, characteristics of watercourse banks, watercourse width, depth of watercourses and water expenses, character of a bottom, water flow rate and flow speed, climatic effects and mutual position of drainage and other geographical subjects. IntroductionThe drainage (hydrosphere) is one of the main elements determining the troops movement on terrain first off by spatially distribution of landscape sphere to partial units, there through it is influential both in the entire system of military operations and movement of particular vehicles. The complex influence of geographic and meteorological factors on the drainage cross ability by a terrain vehicle has not yet been described theoretically and practically in the world literature. Several partial theoretical knowledge and practical experience were publish in [1][2][3][4][5][6].The grade of this determination is given by a specific hydrologic area and the slope gradient, depth and qualitative parameters of drainage on overall forms of its occurrence. The basic form having influence on vehicle traffic ability is surface water, which we can classify from dynamic aspects of running and standing water.With regard to the other elements of traffic ability, drainage has dynamic character rising from changes of its attributes given above all by meteorological conditions (e.g. precipitation, temperature), by behaviour of subterranean waters (affecting hydrological transformation of waters), by terrain relief (slope characteristics of watersides, bottom surface) -see also [5], [7], [8] by human capability to affect these attributes (e.g. by control of water level and flowage by use of dam reservoirs, by engineer works).The evaluation of dynamic changes of particular parameters of drainage traffic ability in real time is not possible just by exploitation of databases or map data, but that evaluation presupposes elaboration of complicated models encompassing data gathering system and evaluation of conditional (meteorological, hydrological and other) data and, on the basis of these data we can modify long-term statistical parameters of drainage and implement them in models of traffic ability see also [5], [9][10][11][12][13][14][15].The evaluation of drainage traffic ability can be made by various criteria given by level of command, combat branch, transport techniques used etc.The main focus of this paper was the theoretical analysis and also the practical evaluation of the drainage impact on Cross-Country Movement (CCM) using the topographical and hydrological data

The Impact of the Accuracy of Terrain Surface Data on the Navigation of Off-Road Vehicles

“…A variety of publications and studies at the university served as a basis for the research conducted in this article. Rybansky analyzed the impact of geographical factors on cross-country movement in References [10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Among other factors, these publications describe in detail the calculation of traction forces required to overcome the slopes of the terrain.…”

“…The terrain passability model described in this article is based on the study of the mutual influence of terrain slope and soil characteristics on the movement of selected military off-road vehicles. The analysis presented in this article primarily utilizes the key findings of the papers of Vala and Braun [28], Rybansky [10][11][12][13][14][15][16][17][18][19][20][21][22][23], Hlaváček [30] and Bradbury et al [9]. Analysis of both soil databases and surface information is performed by the testing of tractive charts of various wheeled and tracked vehicles and comparing the results of cross-country movement analysis.…”