Programma

Hydraulics

Reference flow conditions in hydraulics
Flow through orifices
The "discharge coefficient CD "
Laminar flows in hydraulic components

Valves
Pressure relief valve
Pressure reducing valve
Flow control valve RQ2 type
Flow control valve RQ3 type
Continuous positioning valves and characteristics
Hydraulic manipulators
Servo and proportional valves
Nozzle-Flapper Servo valves


Actuators
Classification and characteristics of linear and rotary actuators

Pumps
Classification of pumps
Pressure Level
Flow regularity
Variable pump displacement
Considerations on the Cost/Performance ratio

Mechanical and volumetric losses in hydraulic pumps and motors
Wilson’s loss model

Fluids, accumulators, pipes, and hoses
Functions of the fluid in hydraulic systems
Definition and characterization of fluid bulk fluid bulk compressibility
Filtration
Thermal conditioning
Accumulators
Piping

Systems
Fixed-flow supply system
Fixed-pressure supply system
Hydrostatic transmissions
"Load-sensing" systems
“Automotive-control” for hydrostatic transmissions
Flow dividers
Continuous positioning flow dividers
Gear dividers

Closed-loop control of linear and rotary actuators
Linearization of hydraulic systems
Canonical characterization of the first and second order systems
PID Industrial controllers
Valve-controlled hydraulic systems

Pump-controlled hydraulic systems
Hydraulic systems and mechatronics
Design of a hydraulic system performance simulation simulation under steady and transient conditions in AMESim® environment

Pneumatics

Basics and reference flows in the operation of pneumaticcomponents
Flow through orifices
Charge and discharge of a capacity
Dynamics of pneumatic jacks

Systems for generation and distribution of compressed air, common components
Compressors
Valves
Actuators
Groups for the treatment of compressed air
Demisters
Filters
Generation-Conditioning groups

Functional and logical management of pneumatic systems
Movement-phase diagrams
Grafcet diagrams
Solutions for the control of two or more pneumatic actuators and issues related to the onset of block-ing signals
Auxiliary memory
Cascade of memories
Pneumatic sequencers
Relay-based systems
PLC-based systems


Systems
Fixed flow supply systemtem
Fixed pressure supply system
Hydrostatic transmissions
"Load-sensing" systems
The “Automotive
The “Automotive-control” for hydrostatic transmissions
Flow dividers
Continuous positioning flow dividers
Gear dividers

Closed-loop control of linear and rotary actuators
Linearization of hydraulic systems

Canonical characterization of the first and second order systems
PID Industrial controllers Industrial controllers
"
"VValvealve--controlled"controlled" hydraulic shydraulic systems ystems
"
"PPumpump--controlled"controlled" hydraulic shydraulic systems ystems
Hydraulic systems
Hydraulic systems andand "mechatronic"mechatronicss""
Training on design
Training on design of hydraulic systemsof hydraulic systems
Design of
Design of a hydraulic system anda hydraulic system and performance performance simulation simulation underunder stationary and dynamic stationary and dynamic conditions in conditions in AMESim®AMESim® environmentenvironment
Pneumatics
Pneumatics
Basics and reference flows in the operation
Basics and reference flows in the operation of of pneumaticpneumatic componentscomponents
Flow through orifices
Flow through orifices
Charge and discharge of a capacity
Charge and discharge of a capacity
Dynamics of pneumatic
Dynamics of pneumatic jacksjacks
Systems for
Systems for generation and distribution of compressed airgeneration and distribution of compressed air, common components, common components
C
Compressorsompressors
V
Valvesalves
A
Actuatorsctuators
Groups for the treatment of compressed air
Groups for the treatment of compressed air
Demisters
Demisters
Filters
Filters
Generation
Generation--Conditioning groupsConditioning groups
Functional and logical management of pneumatic systems
Functional and logical management of pneumatic systems
Movement
Movement--phasesphases diagramsdiagrams
Grafcet
Grafcet diagramsdiagrams
Solutions for the control of two or more pneumatic actuat
Solutions for the control of two or more pneumatic actuators and issues related to the onset ors and issues related to the onset of blocking signalsof blocking signals
A
Auxiliary memoryuxiliary memory
Cascade of memories
Cascade of memories
Pneumatic
Pneumatic sequencerssequencers
Relay
Relay--based systemsbased systems
PLC
PLC--based systemsbased systems

Testi Adottati

-N.NERVEGNA “OLEODINAMICA E PNEUMATICA” ED. POLITEKO, TORINO
-G. BELFORTE, A.M. BERTETTO, L. MAZZA “ PNEUMATICA” ED. TECNICHE NUOVE, MILANO
-ASSOFLUID “L’OLEOIDRAULICA NELL’AMBITO INDUSTRIALE E MOBILE” ED. ASSOFLUID. MILANO
-ASSOFLUID “LA PNEUMATICA E LE SUE APPLICAZIONI” ED. ASSOFLUID. MILANO
-N.D. MANRING “HYDRAULIC CONTROL SYSTEMS” ED. JOHN WILEY & SONS, N. JERSEY
-AKERS, M. GASSMAN E R. SMITH “ HYDRAULIC POWER SYSTEM ANALYSIS” ED.TAYLOR & FRANCIS
-P. BEATER “PNEUMATIC DRIVES” SPRINGER-VERLAG BERLIN
-Learning material by the teacher

Modalità Erogazione

The course takes place in classroom. Laboratory exercises are also organized for working groups. The topics are presented moving from the main engineering fields where fluid power is used and developed. Students are involved in exercises oriented to analysis, design, modeling and experimentation on hydraulic and pneumatic components and systems.

Modalità Valutazione

Oral interview