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20801822 -
LABORATORY: AERODYNAMICS AND AEROACOUSTICS
(objectives)
The specific aim of this module is to achieve cognitive and practical skills in experimental aerodynamics applied to the aeronautic field and more generally to the industrial and environmental engineering fields.
Lectures are also focused on arguments that deal with the fundamental theory of aeroacoustics, including theoretical design problems. Practical exercises and experimental experiences in the department laboratory will deepen aspects related to noise measurements with particular attention on their application in the aeronautical field (ex.: compressible jets and wall flows ).
Having successfully complete the module, the student will be able to recognize, acquire and analyze aeroacoustics and aerodynamics problems with conventional and advanced instrumentation and elaboration techniques.
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DI MARCO ALESSANDRO
( syllabus)
Fundamentals:
Mechanics of fluids: Incompressible and compressible conservation laws, dimensional analysis, asymptotic solutions. Sound Field; Wave equation for fluids, speed of sound and acoustic energy; Diffraction; Geometrical acoustics; waves in solids; Sound frequency analysis; Decibel and Sound Pressure Level; Acoustic Filters; Sound fields summation; Interference and frequency contents.
Wind tunnels: low speed, high speed and anecoich.
Waves equation
Wave equation in a field without sources; Simple and harmonic solutions; Sound Intensity; Energy and specific energy; waves reflection and transmission; Sound generation and transmission mechanisms. Sound sources: Monopole; Dipole; Quadrupole.
Digital signal processing and probability fundamentals.
Acoustic measurement facilities
Anechoic chambers; reverberant chambers.
Quantitative measures of sound
Mathematics fundamentals; Fourier analysis; Measurements systems; acoustic sources characterization by means of microphone measurements.
Experimental techniques for turbulent flows measurements
Hot wire anemometry. Single and multi components; Laser Doppler Anemometry; Particle Image Velocimetry; Laser Induced Fluorescence.
Optical methods for the analysis of density fields
Interferometry, Schlieren, Shadowgraph.
Measurements in aerodynamic wind tunnels
Pitot tube, pressure transducers, mass flow rate meters, thermal measurements with thermocouples; force measurements with dynamometric balances, acoustic measurements.
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9
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ING-IND/06
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72
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Core compulsory activities
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20801816 -
ANALYSIS OF AERONAUTICAL STRUCTURES
(objectives)
TO INTEGRATE AND TO COMPLETE THE STUDENTS KNOWLEDGE IN STRUCTURAL DYNAMICS, FOCUSING ON SPECIFIC PROBLEMS OF AIRCRAFT STRUCTURES AND ON NUMERICAL METHODS WIDELY USED FOR THEIR ANALYSIS. IN PARTICULAR, THE EMPHASIS WILL BE PLACED ON LINEAR AND NON-LINEAR MODELING OF AIRCRAFT STRUCTURES SUBJECT TO THE COMBINED ACTION OF THERMAL AND EXTERNAL LOADS. IN A FIRST STAGE, THE THEORY NECESSARY FOR THE MODELING OF SPECIFIC AIRCRAFT STRUCTURES PROBLEMS WILL BE PRESENTED AND THE BASIC THEORY OF FINITE ELEMENT METHODS WILL BE PROVIDED, WITH PARTICULAR ATTENTION TO AERONAUTICAL APPLICATIONS. IN A SECOND STAGE, THE STUDENT WILL BECOME FAMILIAR WITH FINITE ELEMENT CODES COMMONLY USED FOR STRUCTURAL DESIGN IN INDUSTRIES. THIS ACTIVITY WILL BE AIMED AT THE STRUCTURAL ANALYSIS OF ONE OF THE MOST IMPORTANT ELEMENTS OF THE AIRCRAFT (WING AND/OR FUSELAGE).
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BERNARDINI GIOVANNI
( syllabus)
The Analysis of Aeronautical Structures course is part of the activities of the Construction and aerospace structures (ING-IND/04 SSD).
The teaching program is structured to provide students with knowledge and skills in the structural design of aeronautical components, using methods widely used in the aircraft detailed design phase.
The teaching program is divided into 36 lectures (equal to 9 CFU) divided into the following eight main sections:
1) Tensor Calculus Fundamentals: N-th order tensors. Tensor operations. Curvilinear coordinates. Covariant and contravariant base vectors. Vectors and tensors in curvilinear coordinates. Differential operators in curvilinear coordinates.
2) Kinematics of Deformable Continua: Lagrangian and Eulerian descriptions of motion. Finite strain theory. Deformation gradient tensor. Polar decomposition theorem. Lagrangian and Eulerian finite strain tensors (Cauchy-Green and Eulero-Almansi). Rates of deformation tensors. Linearization of the finite strain theory (infinitesimal strain theory). Material and spatial descriptions of the continuity equation.
3) Dynamics of Deformable Continua: Material and spatial forms of linear momentum balance. Cauchy and Piola-Kirchhoff stress tensors. Material and spatial forms of the angular momentum balance. Material and spatial forms of the mechanical energy balance.
4) Thermodynamics of Deformable Continua: Material and spatial forms of the energy balance. Stokes' heat flux theorem. Material and spatial forms of the thermodynamic energy balance. The second law of thermodynamics.
5) Constitutive relations theory: Noll's axioms. Limitations on the constitutive relations due to the second law of thermodynamics. Constitutive relations for thermoelastic materials: definition of isothermal elastic tensor, thermal stress tensor, and thermal conductivity tensor. Constitutive equation for linear isotropic thermoelastic materials.
6) Thermoelastic problems in aeronautical structures: Gibbs and entropy evolution equations. Uncoupled thermoelastic formulation. Initial boundary value problem of the heat conduction equation. Thermal stress analysis for elastic bodies subjected to external and thermal loads: Euler-Bernoulli beam and Kirchhoff plate. Eigenfunction method for the solution of the thin plate bending problem.
7) Finite Element method: Strong and weak forms of the uncoupled thermoelastic problem. The relation between strong and weak forms and boundary conditions. Virtual work principle. Discretization and definition of shape functions. Shape function choice criteria. Evaluation of element mass, stiffness, and damping matrices. Evaluation of equivalent nodal loads vector. Assembly procedure. The imposition of displacement constraints. Conformal elements. Non-conformal elements – patch test. Standard methods for shape functions construction. Applications in aeronautical problems: truss, beam, plate, and shell.
8) Introduction to the code Simulation Mechanical: Geometric preprocessor; material properties definition; constraints and external loads imposition; solution methods and post-processing. Structural analysis of a wing and/or a fuselage.
( reference books)
- M.E., Gurtin, An Introduction to Continuum Mechanics, Academic Press, 1981 (for contents 1, 2, 3, and 5 of the syllabus)
- Boley, B.A, Weiner. J.H., Theory of Thermal Stresses, John Wiley & Sons, New York, 1960 (for contents 4, 5, and 6 of the syllabus)
- Thomas J.R., Hughes, ‘The Finite Element Method – Linear Static and Dynamic Finite Element Analysis,’ Dover, 2000 (for content 7 of the syllabus)
- T.H.G., Megson, Aircraft Structures for Engineering Students, Arnold, London, 1999 (for content 7 of the syllabus)
- Lectures notes by the teacher (for all the contents of the syllabus)
The educational material used by the teacher from time to time is indicated during lectures. The lecture notes are available on the Moodle platform to facilitate their use for attending and non-attending students. On the same platform, are also made available the specifications of the project the students have to perform during the year, as well as a collection of written tests of previous exams, to provide students with a valid and realistic test bench for the final exam.
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POGGI CATERINA
( syllabus)
The Analysis of Aeronautical Structures course is part of the activities of the Construction and aerospace structures (ING-IND/04 SSD).
The teaching program is structured to provide students with knowledge and skills in the structural design of aeronautical components, using methods widely used in the aircraft detailed design phase.
The teaching program is divided into 36 lectures (equal to 9 CFU) divided into the following eight main sections:
1) Tensor Calculus Fundamentals: N-th order tensors. Tensor operations. Curvilinear coordinates. Covariant and contravariant base vectors. Vectors and tensors in curvilinear coordinates. Differential operators in curvilinear coordinates.
2) Kinematics of Deformable Continua: Lagrangian and Eulerian descriptions of motion. Finite strain theory. Deformation gradient tensor. Polar decomposition theorem. Lagrangian and Eulerian finite strain tensors (Cauchy-Green and Eulero-Almansi). Rates of deformation tensors. Linearization of the finite strain theory (infinitesimal strain theory). Material and spatial descriptions of the continuity equation.
3) Dynamics of Deformable Continua: Material and spatial forms of linear momentum balance. Cauchy and Piola-Kirchhoff stress tensors. Material and spatial forms of the angular momentum balance. Material and spatial forms of the mechanical energy balance.
4) Thermodynamics of Deformable Continua: Material and spatial forms of the energy balance. Stokes' heat flux theorem. Material and spatial forms of the thermodynamic energy balance. The second law of thermodynamics.
5) Constitutive relations theory: Noll's axioms. Limitations on the constitutive relations due to the second law of thermodynamics. Constitutive relations for thermoelastic materials: definition of isothermal elastic tensor, thermal stress tensor, and thermal conductivity tensor. Constitutive equation for linear isotropic thermoelastic materials.
6) Thermoelastic problems in aeronautical structures: Gibbs and entropy evolution equations. Uncoupled thermoelastic formulation. Initial boundary value problem of the heat conduction equation. Thermal stress analysis for elastic bodies subjected to external and thermal loads: Euler-Bernoulli beam and Kirchhoff plate. Eigenfunction method for the solution of the thin plate bending problem.
7) Finite Element method: Strong and weak forms of the uncoupled thermoelastic problem. The relation between strong and weak forms and boundary conditions. Virtual work principle. Discretization and definition of shape functions. Shape function choice criteria. Evaluation of element mass, stiffness, and damping matrices. Evaluation of equivalent nodal loads vector. Assembly procedure. The imposition of displacement constraints. Conformal elements. Non-conformal elements – patch test. Standard methods for shape functions construction. Applications in aeronautical problems: truss, beam, plate, and shell.
8) Introduction to the code Simulation Mechanical: Geometric preprocessor; material properties definition; constraints and external loads imposition; solution methods and post-processing. Structural analysis of a wing and/or a fuselage.
( reference books)
- M.E., Gurtin, An Introduction to Continuum Mechanics, Academic Press, 1981 (for contents 1, 2, 3, and 5 of the syllabus)
- Boley, B.A, Weiner. J.H., Theory of Thermal Stresses, John Wiley & Sons, New York, 1960 (for contents 4, 5, and 6 of the syllabus)
- Thomas J.R., Hughes, ‘The Finite Element Method – Linear Static and Dynamic Finite Element Analysis,’ Dover, 2000 (for content 7 of the syllabus)
- T.H.G., Megson, Aircraft Structures for Engineering Students, Arnold, London, 1999 (for content 7 of the syllabus)
- Lectures notes by the teacher (for all the contents of the syllabus)
The educational material used by the teacher from time to time is indicated during lectures. The lecture notes are available on the Moodle platform to facilitate their use for attending and non-attending students. On the same platform, are also made available the specifications of the project the students have to perform during the year, as well as a collection of written tests of previous exams, to provide students with a valid and realistic test bench for the final exam.
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9
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ING-IND/04
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72
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Core compulsory activities
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ITA |
Optional group:
comune Orientamento unico AD OBBLIGATORIE AFFINI - (show)
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36
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20810249 -
CONTROLLI AUTOMATICI
(objectives)
The course will propose the basic concepts of Automation. It will be developed the ability of analysing simple dynamical systems (stationary and linear) with one input and one output. Along the course will be used representations based on continuous time and frequency with the use of Laplace Transform. Feedback systems will be analysed trying to point out main characteristics. Some techniques will be illustrated to design control loops respecting frequency and time constraints.
Then, it will be illustrated some structural properties of continuous time models and will be introduced concepts like coordinate transformation, modal anaysis, canonical forms, controllability and observability. The course will present control techniques using pole placement approaches, and observers. They will be carried out many practical lessons using MATLAB software that will be used also for designing control systems for the exam
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PANZIERI STEFANO
( syllabus)
STATE SPACE: INPUT-STATE REPRESENTATIONS, INTERCONNECTION OF SYSTEMS, TRANSITION MATRIX, EXPONENTIAL OF A MATRIX, FROM TRANSFER FUNCTION TO STATE SPACE AND VICE-VERSA, COORDINATE TRANSFORMATION, EGINEVALUES, MODAL ANALYSIS, STRUCTURAL PROPERTIES, ASYMPTOTIC OBSERVER, EIGENVALUES ASSIGNEMENT, SEMPARATION PRINCIPLE, OUTPUR REGULATION, OPTIMAL CONTROL.
( reference books)
Automatic Control Systems, Tenth Edition, Farid Golnaraghi, Benjamin C. Kuo, McGraw-Hill Education; 10 edizione (10 marzo 2017)
Fondamenti di Automatica, Paolo Bolzern, Riccardo Scattolini, Nicola Schiavoni. McGraw-Hill Education; 4° edizione (19 febbraio 2015)
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CAVONE GRAZIANA
( syllabus)
Stabilization with a gain. Root Locus. Real positive part zeros.
Permanent regime: type of control systems and steady-state error.
Rejection of k-type disturbances. Sensitivity to parametric variations.
Permanent sinusoidal regime.
Harmonic response and its representations.
The Bode diagram representation.
Nyquist criterion. Presence of integrators.
Stability margins.
The harmonic response of the closed loop: modulus at resonance and bandwidth.
Systems with delay, non-minimum phase systems.
Direct synthesis. Internal stability. Principle of the internal model, Sensitivity to parametric variations, critical band, Reproduction of sinusoidal signals, Effect of random disturbances.
Correcting Networks.
The standard PID controllers.
( reference books)
G. Marro, Controlli Automatici, Zanichelli, 2004.
A. V. Papadopoulos, M. Prandini, Fondamenti di Automatica. Esercizi, Pearson, 2016.
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9
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ING-INF/04
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72
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Related or supplementary learning activities
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20801821 -
INTERACTIONS BETWEEN MACHINES AND THE ENVIRONMENT
(objectives)
ACQUISITION OF BASIC KNOWLEDGE ABOUT POLLUTANTS FORMATION IN POWER PLANT AND MOTOR VEHICLE; ACQUISITION OF TOOLS FOR AIR POLLUTION MODELING.
ACQUISITION OF ADVANCED KNOWLEDGE TO ANALYZE SOURCES IN LIGHT OF THEIR POLLUTANTS EMISSIONS; ACQUISITION OF SKILLS NECESSARY TO MEASURE AND CONTROL THE EMISSIONS IN ATMOSPHERE (PRE-COMBUSTION, COMBUSTION AND POST-COMBUSTION CONTROLS).
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Derived from
20801821 INTERAZIONE FRA LE MACCHINE E L'AMBIENTE in Ingegneria meccanica LM-33 CHIAVOLA ORNELLA
( syllabus)
Characterization of gases emission from motor vehicle exhaust and power plant stack.
Air quality and meteorology.
Air pollution modelling. Gaussian plume model.
Engineered systems for air pollution control of stationary sources: pre-combustion controls, combustion controls and post-combustion controls.
Noise pollution and control methods.
Emission standards and regulations.
( reference books)
- Giorgio Cau, Daniele Cocco “L’Impatto Ambientale dei Sistemi Energetici” Ed. SGEditoriali, 2015
- Mackenzie L. Davis, David A. Cornwell “Introduction to Environmental Engineering” Ed. McGraw-Hill, 1991
- C. S. Rao “Environmental Pollution Control Engineering” Ed. New Age International (P) Limited, 2006
- Lewis H. Bell, Douglas H. Bell “Industrial Noise Control” Ed. Marcel Dekker Inc., 1994
- Robert G. Kunz “Environmental Calculations: A Multimedia Approach” John Widely & Sons Inc., 2009
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9
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ING-IND/08
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72
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20801825 -
TURBOMACHINES
(objectives)
THE AIM OF THE COURSE IS TO PROVIDE STUDENTS WITH PRELIMINARY DESIGN PROCEDURES AND CRITERIA FOR TURBOMACHINES. (FROM GAS, STEAM, AND HYDRAULIC TURBINES TO PUMPS, FANS, BLOWERS AND COMPRESSORS).
MOVING FROM PERFORMANCE TARGETS AND SPECIFIC DESIGN BOUNDARY CONDITIONS, THE STUDENT WILL LEARN SOME SIMPLIFIED DESIGN METHODOLOGIES TAKING MATERIAL, MECHANICAL AND THERMAL STRESSES, TRANSONIC FLOW LIMITS AND CAVITATION INTO ACCOUNT. THE OPTIMIZATION OF THE DEGREE OF FREEDOM WILL BE IMPLEMENTED IN THE DESIGN PROCEDURES.
THE STUDENT WILL BE ABLE TO ANALYSE MACHINE PERFORMANCE ONCE THE MAIN GEOMETRIC QUANTITIES ARE GIVEN.
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Derived from
20801825 TURBOMACCHINE in Ingegneria meccanica LM-33 N0 GIOVANNELLI AMBRA
( syllabus)
The similitude theory applied to turbomachines
- Criteria and limits;
- Dimensional analysis and performance laws;
- Relevant applications to design and analysis of turbomachines;
Hydraulic machines
1) Centrifugal and axial pumps
- Basic principles and performance
- Influence of cavitation on pump selection and design;
- Preliminary design of the main components (radial and axial impellers, unvaned and vaned diffusers, volutes)
- Main parameters which affect pump performance;
- Operation and control: basic principles.
2) Hydraulic turbines
- Basic principles and performance
- Preliminary design of Pelton turbines;
- Preliminary design of reaction turbines (Francis and Kaplan);
- Draft tube and cavitation in reaction turbines;
- Performance characteristics;
- Operation: basic principles.
Compressible flow turbomachines
3) Fluid-dynamics in ducted flows
- Review of applied thermodynamics and gas-dynamics;
- Steady one-dimensional and two-dimensional flows, vorticity, Crocco’s theorem, shock waves. Shock and expansion waves on complex aerofoils.
- Two-dimensional cascades;
- Boundary layers on complex aerofoils, effect of pressure gradients on stall in cascades, thermal boundary layers.
- Shock wave/ boundary layer interaction;
- Three-dimensional effects: secondary flows.
4) Axial compressors
- Basic principles, application of dimensional analysis, performance characteristics;
- Preliminary design: elementary theory, factors affecting stage pressure ratio, blockage in the compressor annulus, degree of reaction, design process;
- Mean-line analysis: efficiency optimization.
- Three-dimensional flow: free-vortex law, constant degree of reaction law, constant rotor absolute inlet angle law;
- Stage efficiency: three-dimensional optimization.
- Correlations for the evaluation of losses and deviation.
5) Steam Turbine
- Basic principles and performance characteristics.
- Analysis of: impulse stage, velocity-compounded impulse stage, reaction stage. Comparison and discussion.
- Total-to-total and total-to-static blade efficiency, windage losses, partial admission losses, humidity losses.
- Preliminary design: principles for selecting the path of multistage turbines, rough estimation of the process of steam flow in the path, estimation of stage diameter, number of stages and distribution of enthalpy drops. Calculation of the steam path.
6) Axial gas turbines
- Basic principles, application of dimensional analysis, performance characteristics;
- Preliminary design: elementary theory, vortex theory (free-vortex design, constant nozzle angle design);
- Stage performance limitations;
- Cooling methods: basic principles.
Students will apply design methodologies and procedures on several case studies.
( reference books)
• T. Wright e P.M. Gerhart, "Fluid Machinery: Application, Selection and Design", CRC Press ISBN978-1-4200-8294-4
• Documents available on Moodle
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9
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ING-IND/08
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72
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Related or supplementary learning activities
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20801835 -
INTERNAL COMBUSTION ENGINES
(objectives)
ACQUISITION OF TOOLS FOR ANALYZING RECIPROCATING INTERNAL COMBUSTION ENGINES PERFORMANCES, SPARK IGNITION AND DIESEL ONES, FOR USE IN BOTH INDUSTRIAL, AND TRANSPORT SECTORS.
REFINEMENT OF KNOWLEDGE ON OPERATIONAL ISSUES RELATED TO THE THERMO-FLUID DYNAMICS OF RECIPROCATING ENGINES, COMBUSTION, POLLUTION CONTROL AND MANAGEMENT OF ENGINE POWER TRAIN
ACQUISITION OF TOOLS FOR THE ANALYSIS OF FUNCTIONAL CHARACTERISTICS OF PLANTS WITH GAS TURBINE ENGINES FOR BOTH THE INDUSTRY AND FOR THE AVIATION, MARINE AND TERRESTRIAL PROPULSION.
ACQUISITION OF OPERATIONAL SKILLS NECESSARY FOR PROFESSIONAL ACTIVITY IN PLANTS WITH GAS TURBINES.
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9
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ING-IND/08
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72
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Related or supplementary learning activities
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20801838 -
OLEODYNAMICS AND PNEUMATICS
(objectives)
ACQUISITION OF BASIC KNOWLEDGE ABOUT THE FUNCTIONAL CHARACTERISTICS, IN STEADY STATE, THE HYDRAULIC AND PNEUMATIC COMPONENTS OF INTEREST FOR INDUSTRIAL ENGINEERING. ACQUISITION OF SKILLS NEEDED FOR THE DESIGN OF HYDRAULIC AND PNEUMATIC ARCHITECTURE COMPLEX AND HIGHLY INTEGRATED WITH ELECTRICAL COMPONENTS AND SYSTEMS MANAGEMENT IN PROGRAMMABLE LOGIC. REFINEMENT AND CONSOLIDATION OF KNOWLEDGE FOR THE IDENTIFICATION OF THE DYNAMIC BEHAVIOR OF COMPONENTS AND HYDRAULIC SYSTEMS AND FOR THE STABILITY ANALYSIS OF MECHANICAL, HYDRAULIC AND ELECTRICAL INTEGRATED SYSTEMS.
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Derived from
20801838 OLEODINAMICA E PNEUMATICA in Ingegneria meccanica LM-33 N0 PALMIERI FULVIO
( syllabus)
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
( reference books)
-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
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9
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ING-IND/08
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20801715 -
MACHINES AND ELECTRIC OPERATIONS
(objectives)
The course has the purpose to describe the manufacturing features and the functional characteristics of the main rotating electrical machines, including dynamic models used for the study of the electrical machine behavior in electromechanical systems. It is expected that the student will acquire the ability to select the various electromechanical equipment used in industrial applications or in power systems for the production of the electric energy. The course gives basic knowledge concerning the main configurations of the power electronic converters that are used for the control of power supply of electrical machines as well as it gives basic knowledge of the main algorithms being used in electric drives for control and monitoring of the machine performance; as a result, the course is targeted to give know how concerning how to identify the main design characteristics of an electric drive in connection with the functional specification of a given application.
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LIDOZZI ALESSANDRO
( syllabus)
Short introduction to electrical drives: functional block schemes, review on electrical machine types, AC and DC, quadrants of operations, regenerative brake, thermal behaviors, analysis in the Laplace domain.
Power electronics converters for electrical drives: topologies, characteristics and modulation techniques.
Short view on DC electric drives: torque and flux control, speed control and position control.
Electrical drives based on synchronous machine: electrical machine operation and drive block scheme, dynamic model in the synchronous reference frame, operation under sinusoidal supply, control strategies for the related electrical drives.
Electrical drives with induction machine: electrical machine operation and drive block scheme, dynamic model in the synchronous reference frame, scalar and vector control strategies for induction machine based electrical drives.
( reference books)
In addition to the lecture notes provided by the teacher:
Ion Boldea, Syed A. Nasar
Electric Drives, Third Edition 2016 by CRC Press
ISBN 9781498748209
Bimal K. Bose
Modern Power Electronics and AC Drives
Prentice Hall PTR, 2002
Ned Mohan, Tore M. Undeland, William P. Robbins
Power Electronics: Converters, Applications, and Design
ISBN: 0471226939
Ned Mohan
Advanced Electric Drives: Analysis, Control, and Modeling Using MATLAB / Simulink
ISBN: 978-1-118-48548-4
Ned Mohan
Electric Drives: An Integrative Approach
ISBN: 0971529256
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ING-IND/32
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72
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Optional group:
Laboratori Aeronautica - (show)
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3
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20810039 -
Laboratorio di aerodinamica
(objectives)
Laboratory objectives: to acquire advanced skills on the main analytical, numerical and experimental methodologies on aerodynamics and aeroacoustics in agreement with a project proposal established with the students.
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3
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ING-IND/06
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24
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Other activities
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20810234 -
Laboratorio aeroelasticità dei rotori
(objectives)
STUDENTS ARE INTRODUCED TO THE METHODOLOGIES ADOPTED FOR THE HELICOPTER FLIGHT MECHANICS ANALYSIS, WHICH IS DOMINATED BY MAIN ROTOR BEHAVIOUR. IN PARTICULAR, PHYSICAL PHENOMENA INVOLVED IN ROTOR AEROELASTICITY AND THE MATHEMATICAL MODEL SUITABLE FOR THEIR DESCRIPTION ARE DESCRIBED.
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3
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ING-IND/04
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-
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-
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24
|
-
|
Other activities
|
ITA |
|
20810052 -
Laboratorio di robotica
(objectives)
The module is aimed to gain competences in the field of industrial and service robotics and understand the design of a complex control system for robot manipulators. Activities include individual study, meetings with the teacher, development of a project work, implementation and simulation of the project, verification of its functionalities.
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3
|
ING-INF/04
|
-
|
-
|
24
|
-
|
Other activities
|
ITA |
|
20810237 -
Laboratorio di simulation based design
(objectives)
Obiettivi formativi: provide to the students of the master program in aeronautical engineering the competences and the skills to effectively setup, conduct and interpret numerical simulations in a multidisciplinary design context.
TOPIC
Tools, software and textbooks
Setup of the computational environment
Assessment of the computational environment: coding, compilation, execution, i/o, post–processing
Linear algebra problems: matrix multiplication, linear systems
Coding practices for performance: cache–miss minimization
Use of external libraries. Eigenproblems
Polynomial interpolation
Integration of ODE: explicit/implicit methods, Liapunov stability
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3
|
ING-IND/04
|
-
|
-
|
24
|
-
|
Other activities
|
ITA |
|
|
Optional group:
Laboratori a scelta dello Studente - (show)
|
6
|
|
|
|
|
|
|
|
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20810040 -
Laboratorio di aerodinamica
(objectives)
Laboratory objectives: to acquire advanced skills on the main analytical, numerical and experimental methodologies on aerodynamics and aeroacoustics in agreement with a project proposal established with the students.
|
6
|
ING-IND/06
|
-
|
-
|
48
|
-
|
Elective activities
|
ITA |
|
20810045 -
Laboratorio aeroelasticità dei rotori
(objectives)
STUDENTS ARE INTRODUCED TO THE METHODOLOGIES ADOPTED FOR THE HELICOPTER FLIGHT MECHANICS ANALYSIS, WHICH IS DOMINATED BY MAIN ROTOR BEHAVIOUR. IN PARTICULAR, PHYSICAL PHENOMENA INVOLVED IN ROTOR AEROELASTICITY AND THE MATHEMATICAL MODEL SUITABLE FOR THEIR DESCRIPTION ARE DESCRIBED. FURTHERMORE, VIBRATION AND NOISE INDUCED BY ROTOR AEROELASTIC RESPONSE, WHICH ARE IMPORTANT ISSUES DEALT WITH BY MODERN HELICOPTER DESIGN, ARE DESCRIBED AND THEIR MDELLING IS BRIEFLY OUTLINED.
|
6
|
ING-IND/04
|
-
|
-
|
48
|
-
|
Elective activities
|
ITA |
|
20810291 -
Laboratorio di Simulation Based Design
(objectives)
Obiettivi formativi: provide to the students of the master program in aeronautical engineering the competences and the skills to effectively setup, conduct and interpret numerical simulations in a multidisciplinary design context.
TOPIC
Tools, software and textbooks
Setup of the computational environment
Assessment of the computational environment: coding, compilation, execution, i/o, post–processing
Linear algebra problems: matrix multiplication, linear systems
Coding practices for performance: cache–miss minimization
Use of external libraries. Eigenproblems
Polynomial interpolation
Integration of ODE: explicit/implicit methods, Liapunov stability
Numerical integration: Newton–Cotes quadratures, Gaussian quadratures
Numerical statistics: mean, standard deviation, skewness, kurtosis. Evaluation of uncertainty: Monte Carlo method
Systems of non–linear differential equations. Oscillators, chaotic systems, Lorenz attractor
Coding practices for performance: multithreading, message–passing
|
6
|
ING-IND/04
|
-
|
-
|
48
|
-
|
Elective activities
|
ITA |
|
Università Roma Tre