Modeliranje i simulacija elektrohidrauličkih servosustava

undergraduate thesis

• Title (english): Modeling and simulation of electro-hydraulic servo systems
• Author: Petra Oković
• Mentor: Željko Šitum (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2017-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Tema ovog završnog rada je modeliranje i simulacija elektrohidrauličkih servosustava. MATLAB/Simulink je programski paket koji inženjeri koriste za simuliranje tehničkih sustava. Kao potpora projektnim inženjerima u području analize hidrauličkih sustava, u okviru Simulinka razvijena je knjižnica alata SimHydraulics koja je korištena u ovom radu. U okviru rada su izrađeni simulacijski programi tri elektrohidraulička sustava, a to su sustav za regulaciju translacijskog gibanja tj. za regulaciju položaja hidrauličkog cilindra, sustav za regulaciju rotacijskog gibanja tj. za regulaciju brzine vrtnje hidromotora i sustav za regulaciju tlaka tj. sile hidrauličke preše. Simulacijski programi su izrađeni prema hidrauličkim shemama na temelju kojih su izrađeni laboratorijski eksperimentalni postavi navedena tri elektrohidraulička sustava. U radu je prvo dan kratki opis načina rada u programskom paketu SimHydraulics te su prikazani i ukratko opisani modeli korištenih hidrauličkih komponenti. Zatim je dan opis rada eksperimentalnih postava, te je prikazan detaljan postupak parametriziranja simulacijskih modela eksperimentalnih postava u programskom paketu SimHydraulics. Kako bi se dobio uvid u točnost simulacije, rezultati dobiveni simulacijom su uspoređeni s eksperimentalnim rezultatima. Na kraju rada je dana usporedba programskog paketa SimHydraulics, koji je dio programa za simulaciju raznih tehničkih sustava Simulink, i programskog paketa FluidSIM koji je namijenjem prvenstveno za simulaciju sustava fluidne tehnike.

Abstract (english)

In this thesis, modeling and simulation of electro-hydraulic servo systems is done within MATLAB/Simulink environment by using SimHydraulics. SimHydraulics provides component libraries for modeling and simulating fluid systems, and serves as a tool for engineers dealing with hydraulic power systems. Simulation models of three electro-hydraulic servo systems were created in accordance with hydraulic schematic diagrams of the following experimental setups. First system is a module for linear motion control, in which a position of hydraulic cylinder rod is controlled. Second system is a module for rotational motion control, in which the speed of hydraulic motor is controlled. Third system is a module for pressure control, in which the force of compressing of a hydraulic press is controlled. In the first part of the thesis, a brief descprition of a way of working in SimHydraulics is given, followed by explanation of SimHydraulic components used in simulation models. Afterwards, a brief explanation of working principle of experimental setups is given. Next, the procedure of simulation models parameterization is presented. In order to gain insights in simulation model accuracy, simulations results are compared with experimental results. Finally, a short comparison between SimHydraulics, which is a part of a general purpose simulation software, and FluidSIM, which is a more specialized fluid power simulation software, is given.

• Keywords: hidraulika; elektrohidaulički servosustav; simulacija; modeliranje; MATLAB; Simulink; SimHydraulics; automatska regulacija
• Keywords (english): hydraulics; electro-hydraulic servo systems; simulation; modeling; MATLAB; Simulink; SimHydraulics; control systems
• Language: croatian
• URN:NBN: urn:nbn:hr:235:044196
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 20:09:55