Mechanics of textile machines
Aim of this course is giving the fundamental knowledge of the main mechanical devices and systems applied to the textile machines. Application to the specific field will be highlighted. The analysis of a complete textile machine will be carried out.

Complements of applied mechanics
The objective of this course is the comprehension of dynamic behaviour of simple mechanical systems.

Mechanics of textile machines
At the end of this course students should have a deep knowledge of the different mechanical devices, which the textile machines are equipped with, and of the main pneumatic automation systems. In particular, students should be able to:
- perform the analysis of mechanism and of motion transmission devices;
- design simple pneumatic automation systems;
- identify the regulation parameter of weaving machines.

Complements of applied mechanics
After this course the student should know the base techniques to describe and to analyse the dynamic behaviour of simple mechanical systems,.
The student should be able:
·to describe the equilibrium conditions of simple mechanical systems.
·to calculate the free system response
·to perform the frequency analysis of simple mechanical systems.
·to calculate the system response for harmonic excitation

Complements of applied mechanics
Basis of applied mechanics and physics

Mechanics of textile machines
1. Mechanical devices for textile machines
' Support devices: aim and function of support devices, support typology.
' Planar mechanisms: degree of freedom, four-bar mechanisms, complex mechanisms for textile applications.
' Cams and followers: cams for uniform, parabolic and harmonic motion; cams dynamics; cylindrical cams for yarn guiding systems.
' Dwell mechanisms: Geneva mechanisms, other devices.
' Gear and gear trains: basic kinematics and geometry characteristics, speed ratio, gear trains, ordinary and planetary reduction gear.
' Screws for linear motion: geometry, speed ratio, force transmission, efficiency, applications in the textile field.
2. Pneumatic automation systems
' Pneumatic components: cylinders, directional control valves, auxiliary valves.
' Control techniques: Boolean algebra, cycles diagram, sequencer, relays, PLC.
' Plants: air treatment groups, distribution pipes.
3. Mechanical systems for the textile industry
' Robots: mechanical structure of robot for the textile industry, grippers, end effectors.
' Displacement and control systems: friction belts, toothed belt, friction driving systems of cones.
' Mechanical systems applied to textile machines: projectile weaving machines, gripper weaving machines, air-jet looms, water-jet looms, weft feeders, alarm systems for weaving machines, winders.


Complements of applied mechanics
Dynamic analysis of simple mechanical systems:
·Free response of single degree of freedom systems.
·Forced response of single degree of freedom systems, Bode diagram.
·Energy theorem

Mechanics of textile machines
Theoretical and practice lessons with analytical and numerical exercises; laboratory activities on pneumatic systems; practical analysis of textile machines in industry.

Complements of applied mechanics
Theoretical lessons with short physical examples.
Practice lessons whit analytical and numerical exercises.

Mechanics of textile machines
J.L. Meriam, L.G. Kraige, 'Engineering Mechanics ' Statics', Ed. J.Wiley & sons, inc.
Rexroth Pneumatik, 'Basic pneumatics ' The pneumatic trainer', Vol. 1.
Parker, 'Basic pneumatic technology', Bulletin 0248-B1.
Parker, 'Pneumatic automation technology', Bulletin 0251-B1.

Complements of applied mechanics
Course notes.
Adrian Roberts “Statics and Dynamics with Background Mathematics”, Ed. Cambridge University Press 2003

Mechanics of textile machines
The written examination consists of some theoretical questions and numerical exercises


Complements of applied mechanics
The written examinations consist of some theoretical questions and one numerical exercise
The assessment criterion is the reaching of the various steps in the theoretical answer and the modelling/calculus capability of the various steps in the numerical exercise.
The judgement criterion is related at the values assigned to each step of the answers.
Those criteria are related to the global analysis capability (theoretical and numerical) required at the students at the end of the course.