Precise force control for hydraulic and pneumatic press system

Benić, Juraj and Rajčić, Nikola and Šitum, Željko (2017) Precise force control for hydraulic and pneumatic press system. = Precise force control for hydraulic and pneumatic press system. In: International Conference Fluid Power 2017, 14-15.09.2017., Maribor, Slovenija.

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Šitum, Željko_Precise_force_control_for_hydraulic_and_pneumatic_system.pdf - Published Version Jezik dokumenta:English

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Official URL: https://www.bib.irb.hr/901153

Abstract

This paper presents the force control methods for a pneumatic and a hydraulic press. Both systems have been made for educational purposes as well as for experimental testing and verification of different control techniques. The pneumatic press contains a proportional pressure valve which is used for pressure regulation in a cylinder chamber and has direct impact on controlled force. The proportional pressure regulator also allows an indirect calculation of the cylinder force by measuring the control pressure at the valve outlet, which is less precise than direct measurement of pressing force by using a force transducer. Arduino board was used as a controller for the pneumatic press and it can be programmed via Arduino hardware support for Matlab/Simulink program or via Arduino open-source platform. The control algorithm is implemented in the Matlab/Simulink environment, which allows executing the simulation program in external mode, similar to the Real-Time Workshop tool. The hydraulic press contains a servo-solenoid pressure-control valve for regulating the cylinder pressure. The pressing force can also be indirectly measured by a pressure transducer which is installed in the cylinder chamber. Similar to the case of the pneumatic press, more precise measurement of the pressing force can be achieved with a force transducer. The control algorithm has been implemented on a real-time hardware board by using the Real-Time Workshop tool for generating the C code and building an executive program. Experimental tests have shown that electrically actuated control components supported by the appropriate measuring devices and computer programs make it possible to improve the characteristics of the hydraulic and pneumatic systems required in modern industrial plants.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): press, hydraulic and pneumatic, force control, pressure sensor, force sensor, simulation
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 900 Department of Robotics and Production System Automation > 910 Chair of Engineering Automation
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 14 Sep 2018 11:51
Last Modified: 14 Nov 2018 09:14
URI: http://repozitorij.fsb.hr/id/eprint/8736

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