Geguchadze Archil (Chichiko), Dr. Eng. - Report

 Brief Traction Analysis and Synthesis of Dynamics for Vehicles with High Mobility

Geguchadze Archil (Chichiko), Dr. Eng.

(Akaki Tsereteli State University, Republic of Georgia)

 

Introduction 
 Vehicles engines’ fuel inputs considerably depend on working conditions. Exhaust and cooling system’s thermal losses account is almost two-thirds of fuel power in power balance; a small part is absorbing by additional users, mostly the hydro-pumps and the rest of the power is transferred to the transmission, which like a part of a running gear drive operates with very small losses. In contrast, the high losses are in a running gear. For example, during the traction works toward the hook it reaches only 55% of power developed by the engine that comes to 20% of power generated by diesel fuel. As is well-known, the highest efficiency factor is revealed during the use of tools driving by means of power take-off shaft. For example, if only 20% of the capacity developed by engine will be spent on the traction, but 80% - on driving the tools by means of power take-off shaft, then the efficiency will reach 83%, that is quite large and it defines the importance of active tools [1]. However, the considerable part of works is performed by high speeds of forward motion but the running gear traditionally consumes a little more then half of capacity bringing to its value, i.e. almost half of the capacity (36 ÷ 40%) bringing to driving-wheels axes is loosing for the skiding (mainly on the partially skiding - 20 ÷ 22%) and for the rolling motion resistance (16 ÷ 18%), that requires new technical tools for the improvement of the running gear.