15633 - Applied Mechanics and Automatic Controls

Learning outcomes

Students will learn fundamental topics and methodologies for the study of problems concerning the modelling, the analysis and the design of mechanical  transmissions components and hydraulic drives, and the fundamentals of automatic control.

Course contents

1. Drives

Introduction: power,  absorption,  efficiency,  torque-speed characteristics,  transients,  periodic range,  flywheels.

Couplers: classification,  solid couplings,  Hooke's joint,  constant velocity joints,  flexible joints,  dynamic modelling.

Clutches: classification,  disk friction clutches,  conical friction clutches,  transients.

Brakes: classification,  block brakes,  transients,  brake torque.

Gear trains: ordinary gearings, epyciclic trains,  differential trains,  change gears.

Variable-speed drives: classification,  choice of a variable-speed drive.

Cams: trajectory planning,  cam-systems.

Hydraulic transmissions: components,  pumps, hydraulic motors, hydraulic cilinders,  hydraulic circuits.

2. Lubrication

Introduction to lubricated kinematic pairs. Hydrodynamic lubrication. Hydrostatic lubrication.

System dynamics: lumped parameter systems, ordinary differential equations,  Laplace transforms,  tranfer function,  examples.

Control systems and Bode analysis: stability,  frequency response,  Bode plots,  phase-gain,  phase margin,  gain margin.

Readings/Bibliography

·           E. Funaioli, A. Maggiore, U. Meneghetti,  Lezioni di Meccanica Applicata alle Macchine –Prima Parte: Fondamenti di Meccanica delle Macchine, Patron, Bologna, 2005.  

·           E. Funaioli, A. Maggiore, U. Meneghetti,  Lezioni di Meccanica Applicata alle Macchine –Seconda Parte: Elementi di Meccanica degli Azionamenti, Patron, Bologna, 2009.   

·           R. Ghigliazza, C.U. Galletti, Meccanica Applicata alle Macchine, Utet, Torino, 1986.

·           P.L. Magnani, G. Ruggieri,  Meccanismi per Macchine Automatiche , Utet, Torino, 1986.

·           G. Legnani, M. Tiboni, R. Adamini, Meccanica degli Azionamenti – Vol. 1 Azionamenti elettrici, Progetto Leonardo, Bologna, 2003.

·           J.J. Uicker, G.R. Pennock, J.E. Shigley.   Theory of Machines and Mechanisms, Oxford University Press, Oxford, 2003. 

·           C.E. Wilson, J.P. Sadler.   Kinematics and Dynamics of Machinery, Pearson Education - Prentice Hall, Singapore, 2006.   

·           U. Belladonna, Elementi di Oleodinamica, Hoepli, Milano, 2001.

Teaching methods

Theoretical lectures and application examples.

Assessment methods

Written examination: 4 or 5 questions about theoretical aspects and -mainly- applications.
Optional oral examination for incrementing (or decrementing) the score of 2-3 points at most.

Teaching tools

Slides are used as a support for the lesson presetations. Pdf file of the presentation are available at the webpages:  http://diem1.ing.unibo.it/personale/troncossi/didattica_tronco.htm
http://campus.unibo.it/

Links to further information

http://www.unibo.it/docenti/marco.troncossi

Office hours

See the website of Marco Troncossi