The program of lectures
Week Contents of lectures
1. A hydraulic system: definition, structure and function of the hydraulic circuit. Distribution of hydraulic circuits. Analysis of hydraulic circuits in steady state: circuits with a flow source, circuit with a pressure source. Solution by method of mathematical and physical modeling of R- resistance.
2 Thermal calculation of the hydraulic circuit. Heat conduction and convection. Design of cooler. The basics of hydraulic systems dynamics.
3 Liquids of hydraulic circuits: the types, properties, use.
4 Elements of hydraulic systems: distribution. Hydrostatic transducers gear, flap, ORBIT, screw, Hartmann, plunger, rejoice.
5 Radial and axial piston hydrostatic transducers. Control of hydrostatic transducers at a constant pressure, constant flow, constant performance. Hydraulic aggregates.
6 Rocking motors. Linear motors. Seals in hydraulics. Pressure multipliers.
7 One-way valves. One-sided, double sided hydraulic lock. Filling and vent valves. Shut-off valves. Saddle and spool distributors.
8 Pressure valves: safety, discharge, reduction. Single and multistage. Connecting and disconnecting. Logic built-in valves.
9 Screens and nozzles. Throttle valve pressure-dependent. Throttle valves independent on viscosity. Throttle valves with two-way and three-way pressure weight. Braking valves. Control valve with two and four edgges.
10 Proportional valves and distributors. Servo valves. Servo drivers.
11 Hydraulic accumulators and their use in circuits.
12 Control of hydrostatic drivers: gradual, with change of geom. volume, with variable resistor. Hydrostatic transducer.
13 Circuits with two or more motors. Synchronous running of motors. Circuits for handling with mass loads.
14 Energy-saving systems. Filters and filtration. Pipes, hoses, tanks, heaters, coolers.
Program of exercises and seminars + individual students' work
Week Content of exercises and seminars
1. Repeating of hydrostatics. The pressure in the liquid. Pressure losses. Flow
losses. Calculation of permeability G = 1 / R.
2 Analysis of the ideal hydraulic circuit in the steady state. Program No. 1: Calculation of ideal hydraulic circuit parameters in steady state. Student can receive up to 10 points per program.
3 Calculation of real hydraulic circuit parameters in steady state: - circuits with a source of pressure and flow.
4 R-resistance. Circuits with R - resistors.
5 Calculation of circuit parameters with throttle valves.
6 Thermal calculation of hydraulic circuit. Design of cooler.
7 Starting and stopping of drive. Test 1: Physical properties of liquids. The pressure in the liquid. Pressure and flow losses. Thermal calculation. Student can receive up to 10 points per test.
8 Stiffness of the hydraulic motor. Natural oscillations in the circuit.
9 Program No. 2: Measurement of p-Q characteristics of a gear pump. Determination of flow efficiency, leakage resistance and leakage permeability. Mathematical and physical model of a gear pump. Student can receive up to 6 points per program. Program No. 3: Measurement of pressure-dependent valve. Student can receive up to 6 points per program.
10 Design and calculation of the linear hydraulic motor. Calculation of friction seal. Alternatively, the possibility of excursions.
11 Design of hydraulic circuit with a proportional valve.
12 Calculation of the circuit with accumulator.
13 Design of accumulator.
14 Credits.
List of questions to examination
1 Liquids of hydraulic circuit: properties.
2 Liquids of hydraulic circuits: types, use.
3 Hydrostatic transducers: definitions, efficiency, characteristics.
4 Hydrostatic gear transducers.
5 Hydrostatic screw and vane transducers.
6 Hydrostatic radial piston transducers.
7 Hydrostatic axial piston transducers.
8 Control of geometric volume transducers. Constant-pressure control, constant flow control and constant power control.
9 Linear motors: design.
10 Linear motors: technology of production.
11 Seals in hydraulics.
12 Check valves. Controlled check valves. Shut-off valves.
13 Directional control valves.
14 Throttle valves. Braking valves.
15 Pressure control valves.
16 2-way cartridge valves.
17 Proportional technology.
18 Servo technology.
19 Hydraulic accumulators.
20 Purity of liquids. Filters and filtration.
21 Circuits with two or more motors. Synchronous motors running.
22 Circuits for material loads handling.
23 Circuits with accumulators.
24 Valve control of hydrostatic drive.
25 Volume control of hydrostatic drive. Hydrostatic transmission.
26 Thermal calculation of hydraulic circuit.
Week Contents of lectures
1. A hydraulic system: definition, structure and function of the hydraulic circuit. Distribution of hydraulic circuits. Analysis of hydraulic circuits in steady state: circuits with a flow source, circuit with a pressure source. Solution by method of mathematical and physical modeling of R- resistance.
2 Thermal calculation of the hydraulic circuit. Heat conduction and convection. Design of cooler. The basics of hydraulic systems dynamics.
3 Liquids of hydraulic circuits: the types, properties, use.
4 Elements of hydraulic systems: distribution. Hydrostatic transducers gear, flap, ORBIT, screw, Hartmann, plunger, rejoice.
5 Radial and axial piston hydrostatic transducers. Control of hydrostatic transducers at a constant pressure, constant flow, constant performance. Hydraulic aggregates.
6 Rocking motors. Linear motors. Seals in hydraulics. Pressure multipliers.
7 One-way valves. One-sided, double sided hydraulic lock. Filling and vent valves. Shut-off valves. Saddle and spool distributors.
8 Pressure valves: safety, discharge, reduction. Single and multistage. Connecting and disconnecting. Logic built-in valves.
9 Screens and nozzles. Throttle valve pressure-dependent. Throttle valves independent on viscosity. Throttle valves with two-way and three-way pressure weight. Braking valves. Control valve with two and four edgges.
10 Proportional valves and distributors. Servo valves. Servo drivers.
11 Hydraulic accumulators and their use in circuits.
12 Control of hydrostatic drivers: gradual, with change of geom. volume, with variable resistor. Hydrostatic transducer.
13 Circuits with two or more motors. Synchronous running of motors. Circuits for handling with mass loads.
14 Energy-saving systems. Filters and filtration. Pipes, hoses, tanks, heaters, coolers.
Program of exercises and seminars + individual students' work
Week Content of exercises and seminars
1. Repeating of hydrostatics. The pressure in the liquid. Pressure losses. Flow
losses. Calculation of permeability G = 1 / R.
2 Analysis of the ideal hydraulic circuit in the steady state. Program No. 1: Calculation of ideal hydraulic circuit parameters in steady state. Student can receive up to 10 points per program.
3 Calculation of real hydraulic circuit parameters in steady state: - circuits with a source of pressure and flow.
4 R-resistance. Circuits with R - resistors.
5 Calculation of circuit parameters with throttle valves.
6 Thermal calculation of hydraulic circuit. Design of cooler.
7 Starting and stopping of drive. Test 1: Physical properties of liquids. The pressure in the liquid. Pressure and flow losses. Thermal calculation. Student can receive up to 10 points per test.
8 Stiffness of the hydraulic motor. Natural oscillations in the circuit.
9 Program No. 2: Measurement of p-Q characteristics of a gear pump. Determination of flow efficiency, leakage resistance and leakage permeability. Mathematical and physical model of a gear pump. Student can receive up to 6 points per program. Program No. 3: Measurement of pressure-dependent valve. Student can receive up to 6 points per program.
10 Design and calculation of the linear hydraulic motor. Calculation of friction seal. Alternatively, the possibility of excursions.
11 Design of hydraulic circuit with a proportional valve.
12 Calculation of the circuit with accumulator.
13 Design of accumulator.
14 Credits.
List of questions to examination
1 Liquids of hydraulic circuit: properties.
2 Liquids of hydraulic circuits: types, use.
3 Hydrostatic transducers: definitions, efficiency, characteristics.
4 Hydrostatic gear transducers.
5 Hydrostatic screw and vane transducers.
6 Hydrostatic radial piston transducers.
7 Hydrostatic axial piston transducers.
8 Control of geometric volume transducers. Constant-pressure control, constant flow control and constant power control.
9 Linear motors: design.
10 Linear motors: technology of production.
11 Seals in hydraulics.
12 Check valves. Controlled check valves. Shut-off valves.
13 Directional control valves.
14 Throttle valves. Braking valves.
15 Pressure control valves.
16 2-way cartridge valves.
17 Proportional technology.
18 Servo technology.
19 Hydraulic accumulators.
20 Purity of liquids. Filters and filtration.
21 Circuits with two or more motors. Synchronous motors running.
22 Circuits for material loads handling.
23 Circuits with accumulators.
24 Valve control of hydrostatic drive.
25 Volume control of hydrostatic drive. Hydrostatic transmission.
26 Thermal calculation of hydraulic circuit.