Students learn more deeply with hydraulic and pneumatic components, their structures, functions, parameters, characteristics and use in hydraulic and pneumatic circuits. They know how to properly use these elements in hydraulic and pneumatic systems. In detail, students will learn the advanced control technology and servo technology in hydraulic and pneumatic actuators and mechanisms. They know the most important sources of constant pressure, and then use this knowledge to design systems with valve control. In the field of fluid power systems become familiar with key applications, ie, hydraulic and pneumatic machine drives and hydrostatic transmissions. They learn to deal with cases of start-ups and drive mechanisms, and calculate the thermal balance of fluid. They will learn the basics of reliability, operation and maintenance of fluid systems.

Summary

In the first part of the course Fluid systems and components in more detail, students learn about functions, structures, parameters, characteristics, and calculated using the fluid control elements, in particular hydraulic and pneumatic proportional valves and switchboards, control valves and servo-valves. In addition, sources familiar with the problems of pressure and flow of resources, capabilities and management (control pumps, battery drives, etc.).
In the section devoted to fluid systems become familiar with the properties of selected fluid systems such as systems with batteries, with proportional valves, energy saving systems, systems with two or more motors, systems, ensuring synchronous operation of hydraulic motors, systems for handling massive loads, etc.
Acquainted with the composition of hydraulic and pneumatic drives and hydrostatic transmissions. These systems will be able to design and carry out basic calculation parameters in steady state. They will be able to solve cases of acceleration and braking actuators, and solve the thermal balance of these drives. Meet the basics of reliability, operation and maintenance of fluid systems.
The exercises practiced brand of fluid elements, measuring the static characteristics of the fluid elements in laboratory to verify the properties and behavior of fluid systems, practicing the theory of fluid systems, analyze typical hydraulic and pneumatic circuits in steady state solves heats, brake fluid balance and thermal systems. Propose (projects) simpler types of fluid systems.

Way of continuous check of knowledge in the course of semester

Credit

Exam

Literature

FOJTÁŠEK, K., HRUŽÍK, L., BUREČEK, A., STONAWSKI, E., DVOŘÁK, L., VAŠINA, M.: Fluid Mechanisms - Hydraulic Mechanisms, VŠB-TU Ostrava, 2022, 227 p. Download.

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 p. Download.

EXNER, H., FREITAG, R., GEIS, H. et al:. The Hydraulics Trainer Volume 1, Basic Principles and Components of Fluid Technology. Mannesmann Rexroth AG, Lohr am Main, 1991. p. 344. ISBN 3-8023-0266-4. Read free for 30 days. Available in VSB central library and study room. The Hydraulics Trainer Volume 2, (proportional & servo valve technology).

YUKEM KOGYO Co. Ltd.: Basic Hydraulics and Components. Tokyo, 2006. 97 p. Download.

FESTO: Hydraulics Basic Level. Textbook. Festo Didactic GmbH & Co. KG, Denkendorf, 2003. 236 p. Download.

GOETZ, W.: Hydraulics. Theory and Applications. Ditzingen: OMEGON, 1998. 291 s. ISBN 3-980-5925-3-7.

BEATER, P.: Pneumatic drives: system design, modelling and control. Berlin: Springer, 2007. 323 pp. ISBN 978-3-540-69470-0.

NOACK, S. Hydraulics in Mobile Equipment. Ditzingen: Rexroth Bosch Group + OMEGON, 2001. 202 s. ISBN 0-7680-0886-7.

Knowel: Browse - Mechanics & Mechanical Engineering - Machine Design - Hydraulics and Pneumatics

PARR, A.: Hydraulics and Pneumatics: A Technician’s and Engineer’s Guide, 1998, Elsevier, 2nd Edition, ISBN-13:978-0-7506-4419-9.

PARR, A.: Hydraulics and Pneumatics: A Technician’s and Engineer’s Guide, 2011, Elsevier, 3rd Edition, ISBN-13: 978-0-08-096674-8.

Google search: many different outputs (images, videos etc.)

Exam questions

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. Electrohydraulic components in hydraulic systems - purpose, function, types, characteristics.

23. Pressure intensifiers - their purpose in systems, types, applications, pressure gain.

24. Circuits for lifting and sinking mass load.

25. Multi-motor drives. Synchronous operation of hydraulic motors.

26. Energy saving hydraulic systems.

27. Pneumatic drives.

Fluid Elements and Systems