338-0502/02 – Hydraulic Elements and Systems (HyPrv)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits5
Subject guarantordoc. Dr. Ing. Lumír HružíkSubject version guarantordoc. Dr. Ing. Lumír Hružík
Study levelundergraduate or graduateRequirementCompulsory
Year1Semesterwinter
Study languageCzech
Year of introduction2013/2014Year of cancellation
Intended for the facultiesFSIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
BUR262 Ing. Adam Bureček, Ph.D.
HRU38 doc. Dr. Ing. Lumír Hružík
STO76 Ing. Erik Stonawski, Ph.D.
VAS024 doc. Ing. Martin Vašina, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+2
Combined Credit and Examination 12+10

Subject aims expressed by acquired skills and competences

Students will gain detailed knowledge of the functions, construction, calculation, properties, and use of hydraulic components. They are able to use these components in hydraulic systems. They will extend their knowledge in the area of design and calculation of selected hydraulic circuits and systems, especially in terms of their control, energy balance, operation, and maintenance, reliability, etc.

Teaching methods

Lectures
Tutorials
Experimental work in labs

Summary

In the course Hydraulic components and systems, students will learn the function, construction, parameters, characteristics, calculation and use of hydraulic components, the basic of hydrostatic systems theory and the basic types of hydraulic circuits. In exercises, students practice hydraulic components marks, measure static characteristics of hydraulic components and practice the basics of hydraulic systems theory.

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

Credit: during the semester will be enter 2 programs for which it is possible to get up to 24 points, at the end of the semester will be control test for max. 8 points. Minimum for obtaining credit is 20 points, max. 32 points. Examination: oral exam - 2 questions, each for max 25 points, defense of programs for max. 18 points.

E-learning

The following study materials are available on the department website: http://www.338.vsb.cz/studium/studijni-opory/

Další požadavky na studenta

List of questions to examination 1. Working fluids of hydraulic systems: physical properties. 2. Working fluids of hydraulic systems: types of working fluids and their applications. 3. Hydrostatic pumps and motors: definitions, efficiency, characteristics. 4. Hydrostatic gear pump and motors. 5. Hydrostatic screw and vane pump and motors. 6. Hydrostatic radial piston pump and motors. 7. Hydrostatic axial piston pump and motors. 8. Control of geometric volume pump and motors. Constant pressure, constant flow, and constant power control. 9. Hydraulic cylinders: construction and calculation. 10. Hydraulic cylinders: production technology. 11. Seals in hydraulics. 12. Check valves. Controlled check valves. Double-sided hydraulic lock. Shut-off valves. 13. Seat and spool directional control valves. 14. Throttle valves. Two-way and three-way flow control valves. Braking valves. 15. Direct-operated and pilot-operated pressure control valves 16. Logical slip-in cartridge valves. 17. Proportional technique. 18. Servo technique. 19. Hydraulic accumulators. 20. The purity of liquids. Filters and filtration. 21. Hydraulic systems with two or more hydraulic motors. Synchronous operation of hydraulic motors. 22. Hydraulic systems for handling loads. 23. Hydraulic systems with hydraulic accumulators. 24. Valve control of the hydrostatic drive. 25. Volumetric control of the hydrostatic drive. Hydrostatic transmission. 26. Thermal calculation of hydraulic system.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Contents of lectures 1. Working fluids of hydraulic systems: physical properties, chemical properties, types of working fluids and their applications. 2. Pumps – gear, vane, and screw: basic theory, construction, characteristics, applications. 3. Pumps – piston: basic theory, construction, characteristics, applications. 4. Control and regulation of the pumps geometric volume. Rotary hydraulic motors. Hydraulic power units. 5. Hydraulic cylinders and hydraulic rotary actuators: construction, characteristics, efficiency, applications. Seals in hydraulic systems. Hydraulic pressure intensifiers. 6. Check valves, controlled check valves, double-sided hydraulic lock, direct operated and pilot operated directional valves, shut-off valves: construction, characteristics, applications. 7. Flow control valves: construction, characteristics, applications. 8. Pressure control valves: construction, characteristics, applications. Logical slip-in cartridge valves. 9. Proportional directional control valves, proportional pressure control valves: construction, characteristics, applications. Servo valves. 10. Hydraulic accumulators and their application in hydraulic systems. 11. Control of hydrostatic drives: valve, volumetric. Hydrostatic transmission. 12. Hydraulic systems with two or more hydraulic motors. Synchronous operation of hydraulic motors. Hydraulic systems for handling loads. 13. Energy-saving systems. Filters and filtration. Pipes, hoses, tanks, heaters, coolers. 14. Thermal calculation of hydraulic system. Cooler design. Fundamentals of hydraulic systems dynamics. Content of exercises and seminars 1. Repetition of hydrostatics. Pressure in liquid. Pressure losses. Flow losses. Calculation of permeability G = 1 / R. 2. Analysis of the ideal hydraulic system in the steady-state. 3. Calculation of real hydraulic system parameters in steady-state. 4. R-resistances. Hydraulic systems with R - resistances. Program No. 1: Calculation of simple hydraulic system parameters in steady-state. Students can earn up to 10 points for this program. 5. Calculation of parameters of hydraulic systems with throttle valves. Program No. 2: Calculation of parameters of the multi-motor hydraulic system controlled by throttle valves. Students can earn up to 14 points for this program. 6. Thermal calculation of hydraulic system. Design and calculation of cooler parameters. 7. Acceleration and braking of the drive. 8. Stiffness of the hydraulic motor. Natural oscillations in the system. 9. Excursion to the industrial operation or testing lab. 10. Design and calculation of the hydraulic cylinder. Calculation of seal friction. 11. Design of hydraulic system with a proportional directional valve. 12. Calculation of the hydraulic system with accumulator. 13. Design and calculation of accumulator. Credit test. Students can earn up to 8 points for this test. 14. Credit.

Conditions for subject completion

Full-time form (validity from: 2013/2014 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 32  20
        Examination Examination 68  25
Mandatory attendence parzicipation:

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Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2019/2020 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2019/2020 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2018/2019 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2018/2019 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2017/2018 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2017/2018 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2016/2017 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2016/2017 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2015/2016 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2015/2016 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2014/2015 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2014/2015 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2013/2014 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2013/2014 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2013/2014 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2013/2014 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan

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