- Docente: Alessandro Rivola
- Credits: 9
- SSD: ING-IND/13
- Language: Italian
- Moduli: Alessandro Rivola (Modulo 1) Alessandro Rivola (Modulo 2)
- Teaching Mode: In-person learning (entirely or partially) (Modulo 1); In-person learning (entirely or partially) (Modulo 2)
- Campus: Forli
- Corso: Second cycle degree programme (LM) in Mechanical Engineering (cod. 8771)
Learning outcomes
The student acquires concepts and advanced methods for the functional design of the machines and is able to deal with issues concerning the modelling of mechanical systems, with reference to multibody systems and mechanical vibration.
Course contents
1. Kinematics of linkages. Planar linkages. The Four-Bar linkage. Analysis versus synthesis. Tasks of Kinematic Synthesis. Graphical synthesis. Analytical synthesis. Motion generation. Path generation. Function generation.
2. Cam design. Introduction. Cam and follower types. Pressure angle. Graphical cam profile synthesis. Analytical cam profile synthesis. Prevention of profile undercutting.
3. Gears. Conjugated profiles. Spur involute gears. Geometry of involute gears. Generation of involute curves by tools. Tooth element proportions. Rack-Cutter. Undercutting. Wildhaber's concept. Modified involute Gears. Involute Helical Gears with parallel axes.
4. Dynamics of Machines and Fundamental of mechanical vibrations.
5. Single Degree of Freedom Systems.
6. Two Degrees of Freedom Systems.
7. N Degrees of Freedom Systems.
8. Continuous Systems.
9. Vibration measurements and modal analysis.
10. Elastodynamic modelling. Lumped parameter modelling of continuous systems and mechanisms. Introduction on the Finite Element Method.
Readings/Bibliography
1. Funaioli E., Maggiore A., Meneghetti U., “Lezioni di Meccanica applicata alle macchine, (I, II e III parte)”, ed. Pàtron, Bologna.
2. Erdman A.G., Sandor G.N., Kota S., “Mechanism Design: Analysis and Synthesis”, Prentice Hall, 4th edition. ISBN: 0130408727.
3. Norton R.L., “Cam Design and Manufacturing Handbook”, Industrial Press, ISBN: 0831131225.
4. Litvin F.L., Fuentes A., “Gear Geometry and Applied Theory”, Cambridge University Press, 2nd edition. ISBN: 0521815177.
5. Rao S.S., “Mechanical vibrations”, Third edition, Addison Wesley Pub. Company, 1995.
6. Inman D.J., “Engineering Vibration”, Prentice Hall, 1994.
7. Slides and notes from the lessons.
Teaching methods
The lectures will focus on theoretical aspects of the course items. The lectures will be supplemented with practical exercises.
Assessment methods
The final examination is oral and includes three questions on the topics covered by the lectures and exercises.
Teaching tools
Blackboard, PC.
Links to further information
http://diem1.ing.unibo.it/mechmach/rivola/
Office hours
See the website of Alessandro Rivola