Selecting the efficient mode of MTU by analyzing the functioning of ellipsoid

Abstract

Nesessary evaluating of functioning MTA is one of important tasks of modern science. The traction concept of the tractor and evaluation methods of traction and dynamic and economic properties will be changed in the conditions of modern tractor construction. This can be approved with a high probability. These questions acquire special relevance in case of assessment of tractive parameters of foreign tractors of a large power intensity. Normal tractive tests don't give the chance to evaluate potential opportunities of tractors. Therefore it is very difficult to realize engine capacity by means of propulsions unit of the power saturated tractor. The set mode of movement is followed by appearance of longitudinal linear accelerations which cause oscillations of the line speed of the machine. It occurs concerning the mean value. It has been offered to consider constant movement of MTA as the sequence of accelerations and decelerations. Any deviations of this vector from ordinate axes and z-coordinates cause harmful operation and loss of energy. The analysis of the direction vector of full acceleration depending on a sign of a projection allows to claim that operation along the direction of movement is additional loss of energy and a condition of a dynamic equilibrium. A condition of a dynamic equilibrium is equality on the module of the negative and positive projections of a vector to an abscissa axis. For a choice of an optimum operation mode of MTA it is necessary to estimate dynamic losses in case of the set movement which arise owing to oscillations of the actual speed of movement. The analysis of the direction vector of full acceleration of MTA has been provided in article. It was set that any deviations of this vector from ordinate axes and z-coordinate cause energy loss. The method of the analysis operation modes which is based on assessment of volume of functioningarea and the relative frequency of distribution projections of an acceleration surface kernelof the second order has been offered. The offered principle of the analysis of operation MTA will allow to define quickly the optimum mode and to propose measures the energies directed to lowering of losses.