Particularities of the interaction of the caterpillar propeller with deformed supporting surface under uneven moving of the machine

The Longitudinal fluctuations of the frame of the caterpillar machine (the tractor) and all kinetic in accordance with him component, caused by unevenness of the motion because of influence of the casual loads, render negative carry-action on technical-economic factors of the machine and unit on its base. The Known that the most probable is a functioning the caterpillar machine on deformed to surfaces, however this circumstance often not take into consideration. In this connection process of the interaction caterpillar propeller is considered in article with deformed supporting surface for the reason determinations main factor, influencing upon unevenness of the moving the machine. With provision for row forming oscillatory process is chose dynamic model, for which is formed accounting scheme of the interaction of the propellers with ground by surface under uneven motion. The Offered equation of the moving the tractor unit in the manner of linear lumpy differential equation of the second order with constant coefficients, which decision is presented by amount two components, describing free and compelled fluctuations. When considering formed motion decision equations will be defined by compelled fluctuations, for which amplitude, coefficient of reinforcements and shift of the phase between fluctuations outraging power and frame of the machine recorded through parameters, characterizing state of working tractor and design data its propeller. Determine factors, influencing on gain factor and shift of the phase of the fluctuations. Executed parametric analysis state of working propellers of tractor class 10 on various types of ground in broad range of the velocities of the motion and tractive of loading. Got as a result of studies to dependencies allow not only to value the influence to unevenness of the moving the caterpillar machine on value of the deforming the ground, but also define the amplitude of the compelled fluctuations, as well as shift of the phase between fluctuations outraging power and frame of the machine depending on parameter of the designs of the sought-after device, speed and loading mode of tractor.