Syllabus of lectures:
Week Contents lectures
1. Fluid mechanism, fluid drive, fluid circuit.
2. Working fluids of hydraulic circuits: properties, types, applications. Compressed air and its properties.
3. Hydraulic pumps: basics of theory, construction, characteristics, application.
4. Rotary hydraulic motors and actuators: construction, functions, parameters.
5. Hydraulic cylinders: construction, characteristics, efficiency, application.
6. Flow direction and size control elements: directional valves, check valves, pilot operated check valves, throttle valves, flow control valves, orifices, and throttles.
7. Pressure control valves: pressure relief and reducing valves.
8. Electrohydraulic elements in hydraulic systems: proportional valves and servo valves.
9. Accumulators and circuits with accumulators. Circuits for lifting and sinking mass load.
10. Multi-motor drives. Synchronous operation of hydraulic motors.
11. Accessories for hydraulic and pneumatic circuits: accumulators, filters, pipes, hoses, tanks, coolers, etc.
12. Energy saving hydraulic systems.
13. Pneumatic drives.
Syllabus of practicals:
Week Contents practicals and seminars
1. Repeating physical properties of liquids, viscosity curves, viscosity classes of oils according to ISO, starting, operating, optimal, short-term minimum viscosity, basics of hydrostatics, hydrodynamics (Bernoulli's equation, calculation of pressure losses in the line), including examples.
2. Graphical symbols of elements (repetition + new symbols).
3. Examples on ideal (lossless) hydraulic pump and rotary hydraulic motor. Examples of ideal circuits.
4. Test 1: 15 questions for a maximum of 15 points. Examples on real steady state circuits: calculation of steady state valves with efficiencies and pressure losses.
5. Programme No. 1: Design and calculation of the real hydraulic circuit in steady state. Design including specification of main elements, pipe design, calculation of pressure losses in pipe. Up to 10 points can be obtained for the program. Circuits with throttle valves - examples.
6. Programme No. 2: Design of a hydraulic circuit with proportional distributor. Up to 10 points may be obtained for the programme.
7. Visit to the laboratory of servo drives, demonstration of servo drive operation.
8. Working point of drive. Drive start-up.
9. Assembly of pneumatic control system in pneumatic laboratory.
10. Design of accumulator and accumulator drive.
11. Thermal calculation of hydraulic circuit.
12. Design of hydrostatic drive or gear.
13. Circuits with two or more hydraulic motors. Synchronous operation of hydraulic motors. Credit.
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.
Week Contents lectures
1. Fluid mechanism, fluid drive, fluid circuit.
2. Working fluids of hydraulic circuits: properties, types, applications. Compressed air and its properties.
3. Hydraulic pumps: basics of theory, construction, characteristics, application.
4. Rotary hydraulic motors and actuators: construction, functions, parameters.
5. Hydraulic cylinders: construction, characteristics, efficiency, application.
6. Flow direction and size control elements: directional valves, check valves, pilot operated check valves, throttle valves, flow control valves, orifices, and throttles.
7. Pressure control valves: pressure relief and reducing valves.
8. Electrohydraulic elements in hydraulic systems: proportional valves and servo valves.
9. Accumulators and circuits with accumulators. Circuits for lifting and sinking mass load.
10. Multi-motor drives. Synchronous operation of hydraulic motors.
11. Accessories for hydraulic and pneumatic circuits: accumulators, filters, pipes, hoses, tanks, coolers, etc.
12. Energy saving hydraulic systems.
13. Pneumatic drives.
Syllabus of practicals:
Week Contents practicals and seminars
1. Repeating physical properties of liquids, viscosity curves, viscosity classes of oils according to ISO, starting, operating, optimal, short-term minimum viscosity, basics of hydrostatics, hydrodynamics (Bernoulli's equation, calculation of pressure losses in the line), including examples.
2. Graphical symbols of elements (repetition + new symbols).
3. Examples on ideal (lossless) hydraulic pump and rotary hydraulic motor. Examples of ideal circuits.
4. Test 1: 15 questions for a maximum of 15 points. Examples on real steady state circuits: calculation of steady state valves with efficiencies and pressure losses.
5. Programme No. 1: Design and calculation of the real hydraulic circuit in steady state. Design including specification of main elements, pipe design, calculation of pressure losses in pipe. Up to 10 points can be obtained for the program. Circuits with throttle valves - examples.
6. Programme No. 2: Design of a hydraulic circuit with proportional distributor. Up to 10 points may be obtained for the programme.
7. Visit to the laboratory of servo drives, demonstration of servo drive operation.
8. Working point of drive. Drive start-up.
9. Assembly of pneumatic control system in pneumatic laboratory.
10. Design of accumulator and accumulator drive.
11. Thermal calculation of hydraulic circuit.
12. Design of hydrostatic drive or gear.
13. Circuits with two or more hydraulic motors. Synchronous operation of hydraulic motors. Credit.
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.