Gun'ko I. Group hydrodrive of working equipment of agricultural machines with hydromotors connection series.

The object of reseach-group hydrodrive with hydromotors connection series; the aim of reseach- to provide high-quality dynamic characteristics by using adjusting elements and by means of the parameter synthesis procedure development ; reseach methods and equipment-analytical and experimental; a personal computer, measuring devices; theoretical and practical results-mathematical simulation of group hydraulic drive with two or three hydromotors connected in series has been carried out, investigation of the system parameter influence on the stability regions and on the quality of operatin is presented, group hydraulic drive designs comprising pressure relief valves are proposed, engineering recommendations and computer methods connected with the selection of circuits, arrangements and drive parameters at the desing stage have been worked out; introduction novelty - has been confirmed by Ukraine patents on inventions; intoduction range - within a branch;introduction area (branch)- аgricultural and transpor t machines.