Multi-pole modeling and simulation of an electro-hydraulic servo-system in an intelligent programming environment

The paper presents composing of models and simulation of an electro-hydraulic servo-system, including hydraulic servo-drive with feedback regulator, electro-hydraulic servo-valve and constant pressure feeding system with variable displacement pump. For composing mathematical models of the fluid powe...

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Bibliographic Details
Published in:International journal of fluid power Vol. 17; no. 1; pp. 1 - 13
Main Authors: Grossschmidt, Gunnar, Harf, Mait
Format: Journal Article
Language:English
Published: Abingdon Taylor & Francis 01.03.2016
River Publishers
Subjects:
Automation
Complexity
Composing
Computer simulation
Constants
Control systems
Control valves
Declarative programming
Displacement
Electro-hydraulic servo-system
Environment models
Feedback
Fluid power
intelligent simulation
Mathematical analysis
Mathematical models
multi-pole model
Nonlinearity
Programming
Programming environments
Regulators
Servocontrol
Servovalves
Simulation
Sliding
Visual tasks
ISSN:1439-9776, 2332-1180
Online Access:Get full text
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Summary:The paper presents composing of models and simulation of an electro-hydraulic servo-system, including hydraulic servo-drive with feedback regulator, electro-hydraulic servo-valve and constant pressure feeding system with variable displacement pump. For composing mathematical models of the fluid power system multi-pole models with different oriented causalities are used. Using multi-pole models allows describe models of required complexity for each component. Using a Java based intelligent programming environment CoCoViLa as a tool, enables one graphically describe multi-pole models of the system and perform simulations in a user-friendly manner. Solving large equation systems during simulations can be avoided. Models of four-way sliding spool throttling slot pairs describe open slot and overlapped slot characteristics of various causalities. For correcting the control signal to the electro-hydraulic servo-valve a non-linear differential regulator is used. An intelligent simulation environment CoCoViLa supporting declarative programming in a high-level language and automatic program synthesis is shortly described. It is convenient to describe simulation tasks visually using visual images of multi-pole models. The designer does not need to focus on programming, but instead can use the models with the generated code. Simulations of subsystems of electro-hydraulic servo-system and the entire system are considered and simulation results are presented and discussed.
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ISSN:1439-9776
2332-1180
DOI:10.1080/14399776.2015.1110093