338-0904/02 – Hydraulic Elements and Systems (HPaS)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits10
Subject guarantordoc. Dr. Ing. Lumír HružíkSubject version guarantordoc. Dr. Ing. Lumír Hružík
Study levelpostgraduate
Study languageCzech
Year of introduction2013/2014Year of cancellation
Intended for the facultiesFSIntended for study typesDoctoral
Instruction secured by
LoginNameTuitorTeacher giving lectures
HRU38 doc. Dr. Ing. Lumír Hružík
PAV70 doc. Ing. Bohuslav Pavlok, CSc.
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
Combined 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

E-learning

Další požadavky na studenta

Additional requirements for students are not .

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1st Hydrostatic transmitters 1.1 The distribution, basic parameters of transmitters 1.2 Energy balance, hydrostatic force transducers 1.3 Static characteristics of pumps, hydraulic motors 1.4 Dynamics of hydrostatic transducer 1.5 Construction converters 1.5.1. Rotary: gear, screw, vane, radial piston, piston axial, eccentric 1.5.2. Swinging motors 1.5.3. Linear motors 1.6 Management hydrostatic transducer 1.6.1. Direct control of the geometric volume 1.6.2. Mechanical-hydraulic control at constant pressure, constant flow, constant power. Load-Sensing Systems 1.6.3. Electrohydraulic control with proportional valves and servo valves 1.7 The course of passive resistance motors, stick-slip, minimal restrictions Speed 2nd Control elements 2.1 Switchboards seat, plunger, valve. Built-in valves 2.2 One-way valves, controlled one-way valves, bilateral hydraulic lock 2.3 Elements of flow control: Aperture, nozzles, flow control valves, butterfly valves with two-way and three-way pressure weight, brake valves 2.4 Proportional valve 2.5 Servo 2.6 Components for pressure control: insurance, relief, weight loss, connection and isolating valves. Controlled directly and indirectly controlled pressure valves 3rd Accessories 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 Management of liquid 4th The working fluid of hydraulic systems 4.1 Physical properties 4.2 Chemical properties 4.3 Ecological properties 4.4 Types of fluids used, the classification 4.5 Hydrostatic Systems 5.1 Control of the hydrostatic drive 5.1.1. Control speed (rpm) Engine: - volume control - valve control 5.1.2. Control of power, torque 5.2 Energy-saving hydrostatic systems 5.2.1. Energy-efficient sources of pressure 5.2.2. Load-sensing systems with an open center and closed center 5.2.3. Secondary control motors 5.2.4 Systems with energy recovery pressure 3.5 Hydrostatic systems with batteries 5.4 Hydrostatic systems with built-in valves 5.5 Hydrostatic systems with proportional valves 5.6 Compensation pressure load weights 5.7 Hydrostatic transmissions 5.8 Hydrostatic systems with two or more motors. Synchronous operation motors 5.9 Servo-mechanisms

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
Examination Examination  
Mandatory attendence parzicipation:

Show history
Combined form (validity from: 2013/2014 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.FormStudy language Tut. centreYearWSType of duty
2019/2020 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes P Czech Ostrava Choice-compulsory study plan
2019/2020 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes K Czech Ostrava Choice-compulsory study plan
2018/2019 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes P Czech Ostrava Choice-compulsory study plan
2018/2019 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes K Czech Ostrava Choice-compulsory study plan
2017/2018 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes P Czech Ostrava Choice-compulsory study plan
2017/2018 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes K Czech Ostrava Choice-compulsory study plan
2016/2017 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes P Czech Ostrava Choice-compulsory study plan
2016/2017 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes K Czech Ostrava Choice-compulsory study plan
2015/2016 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes P Czech Ostrava Choice-compulsory study plan
2015/2016 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes K Czech Ostrava Choice-compulsory study plan
2014/2015 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes P Czech Ostrava Choice-compulsory study plan
2014/2015 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes K Czech Ostrava Choice-compulsory study plan
2013/2014 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes P Czech Ostrava Choice-compulsory study plan
2013/2014 (P2346) Mechanical Engineering (3902V056) Control of Machines and Processes K Czech Ostrava Choice-compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner