Assessing the Reliability of a Mathematical Model of Working Processes Occurring in a Hydraulic Drive

When studying the work processes occurring in the hydraulic drives of mechatronic systems of self-propelled vehicles, one of the most critical tasks is to assess the correspondence of the developed mathematical models to real objects. The developed dynamic model allows for mathematical modeling of changing the pressure of the working fluid and the rotational speed of the hydraulic motor shaft during acceleration of the hydraulic drive with a given probability. The developed methodology for bench testing a planetary hydraulic motor allows for experimental studies of the hydraulic motor during the acceleration of the hydraulic drive. The developed computer program allows for determining the adequacy of theoretical and experimental studies, expressed by the corresponding curves, using the Fisher criterion. Research has established that the results of modeling the acceleration process of a hydraulic drive of a mechatronic system with a planetary hydraulic motor describe the process adequately under study with the probability of 0.95. Consequently, all the results obtained by modeling the working processes occurring in a hydraulic drive are reliable, and the model itself can be recommended for studying hydraulic systems and their elements.