Use of dynamic modeling of VisSim in teaching the discipline «Design and Testing of Hydraulic Fluid Power»

Автор(и)

  • G. Avrunin Kharkiv National Automobile and Highway University, Україна https://orcid.org/0000-0002-0191-3149
  • I. Moroz Kharkiv National Automobile and Highway University, Україна

DOI:

https://doi.org/10.30977/BUL.2219-5548.2019.87.0.13

Ключові слова:

hydraulic fluid drive, hydraulic device, hydraulic drive dynamics, VisSim software

Анотація

The widespread use of  hydraulic  fluid drive in modern road-building and hoisting machines with electrohydroautomation and energy saving requires an increase in the level of education of future specialists for successful work at operation and modernization of the domestic fleet. Problem. Increasing the level of training masters on the basis of familiarization with modern means of analyzing the dynamics of hydraulic  fluid drives, corresponding to the curriculum of the discipline «Design and testing of  hydraulic drives» at the mechanic faculty of the Kharkiv National Auto-Road University. Method. A review of educational literature and the mathematical models of hydraulic  fluid  drive of reciprocating and rotational motion is made. The package of dynamic modeling VisSim for solving the problems of dynamics in hydraulic  fluid drives of road construction, hoisting and transport, utility and land reclamation machines was used on a practical example. Practical results. The study shows a mathematical model of  hydraulic  fluid drive  with a closed circuit of working fluid circulation, including a pump with an adjustable working volume and a hydraulic motor with a constant working volume, the important effect of the pump output time on the maximum flow on the pressure fluctuations in the hydraulic system. Conclusion. The discipline «Design and testing of hydraulic actuators» is provided with methodological manuals, information about modern hydraulic devices and hydraulic drives of mobile machines. For the first time, mathematical modeling was used to study the dynamics of  hydraulic  fluid power  using the VisSim application program. Mathematical modeling of hydraulic  fluid drive is recommended for use by students when performing course and diploma works.

Посилання

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