Abstract
At present, it appears that systems of pneumatic units with discrete and analog control, in which the required analog law of motion of the output member is provided with the help of discrete switchgear, offer a promising potential. When developing the schemes of positional hydraulic-pneumatic units, the parameters of the movement of the hydraulic-pneumatic unit are studied, namely: the value of displacement, speed, and acceleration of its output member. To carry out the simulation, a design based on discrete switchgear was taken as the basis for the pneumatic positional unit. Solving the inverse problem, i.e., with the law of motion of the output member of the pneumatic unit (specifying the positioning function) known, we determine the mandatory law of change in the effective areas of the control line and represent each equation of the dynamic model as block diagrams. A mathematical model of the system of pneumatic positional units with program control was developed. It considers the features of the system of pneumatic units and consists of mathematical models of the actuator, a real-time control line model, and a real-time control system. The proposed algorithm for analysis of dynamic characteristics using the MATLAB simulation environment confirms the adequacy of the mathematical models describing the operation of a positional pneumatic unit implemented on discrete pneumatic equipment. The developed algorithm is advisable to analyze the operation of the existing one and for designing new technological equipment.
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Acknowledgment
The scientific results have been obtained within the research project “Fulfillment of tasks of the perspective plan of development of a scientific direction “Technical sciences” Sumy State University” ordered by the Ministry of Education and Science of Ukraine (State Reg. No. 0121U112684). The research was partially supported by the Research and Educational Center for Industrial Engineering (Sumy State University) and International Association for Technological Development and Innovations.
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Cherkashenko, M., Gusak, O., Fatyeyev, A., Fatieieva, N., Gasiyk, A. (2022). Model of the Pneumatic Positional Unit with a Discrete Method for Control Dynamic Characteristics. In: Ivanov, V., Pavlenko, I., Liaposhchenko, O., Machado, J., Edl, M. (eds) Advances in Design, Simulation and Manufacturing V. DSMIE 2022. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-06044-1_8
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