338-0302/06 – Fluid Mechanisms (TMech)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits5
Subject guarantordoc. Dr. Ing. Lumír HružíkSubject version guarantordoc. Ing. Martin Vašina, Ph.D.
Study levelundergraduate or graduate
Study languageEnglish
Year of introduction2016/2017Year of cancellation
Intended for the facultiesFSIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
BUR262 Ing. Adam Bureček, Ph.D.
DVO31 Ing. Lukáš Dvořák, Ph.D.
FOJ077 Ing. Kamil Fojtášek, Ph.D.
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 Credit and Examination 3+2
Part-time Credit and Examination 16+4

Subject aims expressed by acquired skills and competences

Students will learn the basic concepts of fluid mechanisms: hydraulic mechanism, pneumatic mechanisms, hydraulic and pneumatic circuit. Become familiar with the composition of hydraulic and pneumatic circuits, basic hydraulic and pneumatic components, their functions, structures, characteristics using the circuit. Students will learn to count instances hydraulic and pneumatic circuits in steady state and solve the starting and braking hydraulic actuators. Learn to design simple hydraulic and pneumatic circuits and compile them on trainer in the laboratory. Students acquire basic knowledge of the operation, maintenance, measurement and diagnostics of hydraulic and pneumatic equipment.

Teaching methods

Lectures
Tutorials
Experimental work in labs
Project work

Summary

In the subject "Fluid Mechanisms", students deal with function, structure, properties and applications of fluid, i.e. hydraulic and pneumatic mechanisms. The subject is divided into the following sections: general introduction, basic calculations of fluid mechanisms, elements of fluid systems, their construction, functions and characteristics, hydraulic and pneumatic drives and transmissions, including ways of their control, application of fluid mechanisms. The exercise is focused on calculations of fluid mechanisms and laboratory measurements.

Compulsory literature:

[1] FOJTÁŠEK, K., HRUŽÍK, L., BUREČEK, A., STONAWSKI, E., DVOŘÁK, L., VAŠINA, M.: Fluid Mechanisms - Hydraulic Mechanisms, VŠB-TU Ostrava, 2022, 227 s. Available at: https://www.fs.vsb.cz/338/cs/studium/skripta/ [2] FOJTÁŠEK, K., HRUŽÍK, L., DVOŘÁK, L, BUREČEK, A., STONAWSKI, E., VAŠINA, M.: Fluid Mechanisms - Practical Tasks and Basics of Pneumatics, VŠB-TU Ostrava, 2022, 167 s. Available at: https://www.fs.vsb.cz/338/cs/studium/skripta/ [3] EXNER, H. et al. Hydraulics, Basic Principles and Components. Würzburg, Germany: Bosch Rexroth AG., 2011. 326 p. ISBN 978-3-9814879-3-0. [4] GÖTZ, W. Hydraulics. Theory and Applications. Ditzingen, Germany: OMEGON, 1998. 291 s. ISBN 3-980-5925-3-7. [5] DODDANNAVAR, RAVI BARNARD, ANDRIES. (2005). Practical Hydraulic Systems - Operation and Troubleshooting for Engineers and Technicians. Elsevier. Online version available at: https://app.knovel.com/web/toc.v/cid:kpPHSOTET2/viewerType:toc

Recommended literature:

[1] EWALD, R. et al. Proportional and Servo-valve Technology. Lohr am Main, Germany: Bosch Rexroth AG, 2003. 300 p. [2] HEHN, H. et al. Fluid Power Troubleshooting. New York : Marcel Dekker. 1995. 647 p. ISBN 0-8247-9275-0. [3] MANRING. (2005). Hydraulic Control Systems. John Wiley & Sons. Online version available at: https://app.knovel.com/web/toc.v/cid:kpHCS0000E/viewerType:toc SMC - eLEARNING. available from https://digital.smctraining.com/?lang=cs (username and password will be assigned by teacher, Pneumatic Systems module, Hydraulics module) Another study support - https://www.fs.vsb.cz/338/cs/studium/studijni-opory/

Way of continuous check of knowledge in the course of semester

1 test from graphical symbols (10 points) 2 programmes (25 points) Exam test (25 points) Oral exam (40 points)

E-learning

Other requirements

Additional requirements for the student are not required. .

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Week Lectures 1. Fluid mechanism, fluid drive, fluid circuit. 2. Hydraulic and pneumatic circuits: composition, graphical symbols of elements, functional circuit diagrams. Basic hydraulic and pneumatic circuits. 3. Working fluids of hydraulic circuits: properties, types, applications. Compressed air and its properties. 4. Pressure energy sources - hydraulic pumps: design, function, parameters, characteristics, control. 5. Rotary hydraulic motors and actuators: construction, functions, parameters. 6. Hydraulic cylinders: design, function, parameters. 7. Flow direction control elements: directional valves, check valves, pilot operated check valves. 8. Flow size control elements: throttle valves, flow control valves, orifices, and throttles. 9. Pressure control valves: pressure relief and reducing valves. 10. Proportional control technology, applications of proportional control technology. 11. Fundamentals of servo engineering and its applications. 12. Accessories for hydraulic and pneumatic circuits: accumulators, filters, pipes, hoses, tanks, coolers, etc. 13. Introduction to pneumatic mechanisms. Questions to exam 1. Basics of hydromechanics - Pascal´s law, Law for pressure propagation, Equation of continuity, laminar and turbulent flow, major(local) and minor pressure drops, Bernoulli´s equation. 2. Fluid mechanisms - advantages, disadvantages, applications. 3. Fluid mechanisms - energy transfer (principle), basic principle of hydraulic systems (figure and description). 4. Fluids in systems - their purpose in systems, types, applications. 5. Hydrostatic converters - types, purpose, ideal converters (equations). 6. Hydrostatic converters - real converters (equations), efficiencies. 7. Basic characteristics of real rotary converters. 8. Rotary hydraulic pumps - types, basic principles, advantages, and disadvantages. 9. Rotary hydraulic motors - types, basic principles, advantages, and disadvantages. 10. Rotary actuators - types, basic principles, advantages, and disadvantages. 11. Hydraulic cylinders - types, basic principles, advantages, and disadvantages. 12. Check valves, shut-off valves, cartridge valves - types, basic principles, applications, graphical symbols. 13.Directional valves - types, basic principles, applications, graphical symbols. 14. Throttle valves - types, flow equation, basic principles, applications, graphical symbols, characteristics. 15. 2-way and 3-way flow control valves - their purpose, basic principles, applications. 16. Pressure control valves - types, basic principles, applications, graphical symbols. 17. Accumulators - types, basic principles, advantages, and disadvantages. 18. Accumulators - their functions in systems, examples of their applications in hydraulic systems (figures). 19. Filters and filtration technology - filter types, purpose, location in systems. 20. Tanks - purposes, types, heat flow, stabilization circuit (temperature, filtration). 21. Heat exchangers - types, power equations. 22. Pressure intensifiers - their purpose in systems, types, applications, pressure gain. 23. Electrohydraulic components in hydraulic systems - purpose, function, types, characteristics. 24. Basics of pneumatic mechanisms.

Conditions for subject completion

Full-time form (validity from: 2016/2017 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of pointsMax. počet pokusů
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 35  22
        Examination Examination 65  20 3
Mandatory attendence participation: At least 78% in exercises.

Show history

Conditions for subject completion and attendance at the exercises within ISP: Credit (exercise): Processing of 2 programs + laboratory task + a written test according to the trainer's instructions. Exam: Oral exam – 2 questions + defense of the protocols.

Show history
Part-time form (validity from: 2016/2017 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of pointsMax. počet pokusů
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 35  22
        Examination Examination 65  20 3
Mandatory attendence participation: At least 50% in exercises.

Show history

Conditions for subject completion and attendance at the exercises within ISP: Credit (exercise): Processing of 2 programs + laboratory task + a written test according to the trainer's instructions. Exam: Oral exam – 2 questions + defense of the protocols.

Show history

Occurrence in study plans

Academic yearProgrammeBranch/spec.Spec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2019/2020 (B2341) Engineering (3902R001) Applied Informatics and Control P English Ostrava 3 Compulsory study plan
2019/2020 (B2341) Engineering (2301R013) Robotics P English Ostrava 3 Compulsory study plan
2018/2019 (B2341) Engineering (3902R001) Applied Informatics and Control P English Ostrava 3 Compulsory study plan
2018/2019 (B2341) Engineering (2301R013) Robotics P English Ostrava 3 Compulsory study plan
2017/2018 (B2341) Engineering (2301R013) Robotics P English Ostrava 3 Compulsory study plan
2017/2018 (B2341) Engineering (3902R001) Applied Informatics and Control P English Ostrava 3 Compulsory study plan
2016/2017 (B2341) Engineering (2301R013) Robotics P English Ostrava 3 Compulsory study plan
2016/2017 (B2341) Engineering (3902R001) Applied Informatics and Control P English Ostrava 3 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner
ECTS - MechEng - Bachelor Studies 2024/2025 Full-time English Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng - Bachelor Studies 2023/2024 Full-time English Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng - Bachelor Studies 2022/2023 Full-time English Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng - Bachelor Studies 2021/2022 Full-time English Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng - Bachelor Studies 2020/2021 Full-time English Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng - Bachelor Studies 2019/2020 Full-time English Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng - Bachelor Studies 2018/2019 Full-time English Choice-compulsory 301 - Study and International Office stu. block
ECTS - MechEng - Bachelor Studies 2017/2018 Full-time English Choice-compulsory 301 - Study and International Office stu. block

Assessment of instruction

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