338-0954/01 – Hydraulic Components and Systems (HPaS)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits10
Subject guarantordoc. Dr. Ing. Lumír HružíkSubject version guarantordoc. Dr. Ing. Lumír Hružík
Study levelpostgraduateRequirementChoice-compulsory type B
YearSemesterwinter + summer
Study languageCzech
Year of introduction2019/2020Year of cancellation
Intended for the facultiesFSIntended for study typesDoctoral
Instruction secured by
LoginNameTuitorTeacher giving lectures
HRU38 doc. Dr. Ing. Lumír Hružík
VAS024 doc. Ing. Martin Vašina, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Examination 25+0
Part-time Examination 25+0

Subject aims expressed by acquired skills and competences

Extension of knowledge of structure, properties, mathematical description of static and dynamic properties of hydraulic components. Learn the modern methods of analysis and synthesis of hydrostatic systems. Assume knowledge of control problematics of hydrostatic systems.

Teaching methods

Lectures
Individual consultations
Project work

Summary

The student will deepen its knowledge in the subject Hydraulic components and systems, i.e. knowledge of structure, functions, properties, energy balance, control manner and application of hydrostatic components, i.e. hydraulic pumps, hydraulic motors, control valves and accessories of hydraulic systems. He will obtain knowledge of working fluids of hydraulic systems. Based on the knowledge of hydraulic components, he will deal with analysis and synthesis of selected hydraulic systems, e.g. with hydrostatic systems with proportional control valves, accumulators, slip-in cartridge valves, energy saving systems etc. He will use modern methods of a mathematical description of dynamic behaviour of hydraulic components and systems, such as a description of transfer functions etc. He will use methods of mathematical simulation and computer simulation of dynamic systems during synthesis of hydraulic and electrohydraulic systems.

Compulsory literature:

[1] EXNER, H. et al. Hydraulics, Basic Principles and Components. Würzburg, Germany: Bosch Rexroth AG., 2011. 326 p. ISBN 978-3-9814879-3-0. [2] EWALD, R. et al. Proportional and Servo-valve Technology. Lohr am Main, Germany: Bosch Rexroth AG, 2003. 300 p. [3] GÖTZ, W. Hydraulics. Theory and Application. Ditzingen: Rexroth Bosch Group + OMEGON, 1998. 291 p. ISBN 0-7680-0242-7. [4] NOACK, S. Hydraulics in Mobile Equipment. Ditzingen: Rexroth Bosch Group + OMEGON, 2001. 202 p. ISBN 0-7680-0886-7.

Recommended literature:

[1] IVANTYŠYN, J., IVANTYŠYNOVÁ. Hydrostatic pumps and motors: principles, design, performance, modelling, analysis, control and testing. New Delhi: Tech Books International. 2003. 512 p. ISBN 81-82305-08-1. [2] HEHN, H. et al. Fluid Power Troubleshooting. New York: Marcel Dekker. 1995. 647 p. ISBN 0-8247-9275-0. [3] MANRING, N. D. Hydraulic Control Systems. John Wiley & Sons. 2005. 426 p. Online version available at: https://app.knovel.com/web/toc.v/cid:kpHCS0000E/viewerType:toc [4] CHOW, V. T. Open-channel hydraulics. Caldwell : Blackburn Press, 2007. 680 p. ISBN 978-1932846188.

Way of continuous check of knowledge in the course of semester

Individual consultations and project processing. Oral exam.

E-learning

Other requirements

There are no additional requirements for students.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Hydrostatic pumps and motors 1.1 Types, basic parameters of hydrostatic pumps and motors 1.2 Energy balance, efficiencies of hydrostatic pumps and motors 1.3 Static characteristics of hydrostatic pumps and motors 1.4 Dynamics of hydrostatic pumps and motors 1.5 Construction of hydrostatic pumps and motors 1.5.1 Rotary: gear, screw, vane, radial piston, axial piston, orbital 1.5.2 Rotary actuators 1.5.3 Hydraulic cylinders 1.6 Control of hydrostatic pumps and motors 1.6.1 Direct displacement control of hydrostatic pumps and motors 1.6.2 Pumps mechanical-hydraulic control: constant pressure, constant flow, constant power. Load-Sensing systems 1.6.3 Pumps electrohydraulic control with proportional valves and servo valves 1.7 Hydraulic motors passive resistances, stick-slip, limitation of minimum speed 2. Control valves 2.1 Directional seat and spool valves. Slip-in cartridge valves 2.2 Check valves, pilot operated check valves, double pilot operated check valves 2.3 Flow control valves: Orifices, nozzles, throttle valves, two-way and three-way flow control valves 2.4 Proportional directional control valves 2.5 Servo valves 2.6 Pressure control valves: pressure relief, pressure reducing, sequence and unloading valves. Direct and pilot operated pressure valves 3. Accessories of hydraulic systems 3.1 Hydraulic accumulators 3.2 Filters and filtration of liquids 3.3 Seals in hydraulic systems 3.4 Tanks 3.5 Heaters, coolers 3.6 Hydraulic lines 4. Working fluids of hydraulic systems 4.1 Physical properties 4.2 Chemical properties 4.3 Ecological properties 4.4 Types of used hydraulic fluids, classification 5. Hydrostatic systems 5.1 Hydrostatic drive control 5.1.1 Speed control of hydraulic motor: - variable displacement pump control - valve control 5.1.2 Force and torque control 5.2 Energy saving hydrostatic systems 5.2.1 Energy saving hydraulic power unit 5.2.2 Open centre and closed centre Load-sensing systems 5.2.3 Secondary control of hydraulic motors 5.2.4 Systems with pressure energy recuperation 3.5 Hydrostatic systems with accumulators 5.4 Hydrostatic systems with slip-in cartridge valves 5.5 Hydrostatic systems with proportional directional control valves 5.6 Pressure compensation with two-way and three-way flow control valves 5.7 Hydrostatic transmissions 5.8 Hydrostatic systems with two and more hydraulic motors. Synchronous operation of hydraulic motors 5.9 Servomechanisms

Conditions for subject completion

Full-time form (validity from: 2019/2020 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Examination Examination  
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2021/2022 (P0715D270011) Construction of Production Machines and Equipment K Czech Ostrava Choice-compulsory type B study plan
2021/2022 (P0715D270011) Construction of Production Machines and Equipment P Czech Ostrava Choice-compulsory type B study plan
2021/2022 (P0714D270001) Control of Machines and Processes P Czech Ostrava Choice-compulsory type B study plan
2021/2022 (P0714D270001) Control of Machines and Processes K Czech Ostrava Choice-compulsory type B study plan
2020/2021 (P0714D270001) Control of Machines and Processes P Czech Ostrava Choice-compulsory type B study plan
2020/2021 (P0714D270001) Control of Machines and Processes K Czech Ostrava Choice-compulsory type B study plan
2020/2021 (P0715D270011) Construction of Production Machines and Equipment K Czech Ostrava Choice-compulsory type B study plan
2020/2021 (P0715D270011) Construction of Production Machines and Equipment P Czech Ostrava Choice-compulsory type B study plan

Occurrence in special blocks

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