Teacher
|
BOTTA FABIO
(syllabus)
Introductory concepts: machines, mechanical systems, basic components of machines. Structural analysis: classification and characterisation of pairs, links and chains. Mechanisms: definition, ways of representation, serial and parallel arrangements, mobility, remarkable examples. Kinematic analysis of planar mechanisms with lower pairs only: graphical, analytical and numerical methods. Singular configurations. Kinematic analysis of mechanisms with higher pairs. Kinematic equivalence. Pole curves. Path of a point and its properties. Bresse’s circles. Methods of generating conjugate contours. Cams. Oldham and Cardan coupling. Introduction to the dynamics of machinery. Classification and characterisation of forces. Kinetic energy and work. Fundamental equations of dynamics. Energy equation. Static, sliding and rolling friction. Hydrodynamic lubrication. Journal and thrust bearings. Dynamically equivalent masses and forces. Flywheel size. Mechanical efficiency. Direct and inverse motion. Dry lower pairs. Rolling bearings. Mechanical transmission: friction wheels, spur gears and belt drives. Stability of mechanical couplings. Quasi-static and dynamic analysis of multi-body systems. Critical speeds.
(reference books)
ERDMAN A. G., SANDOR G. N., KOTA S. Mechanism Design: Analysis and Synthesis PRENTICE HALL MABIE H. H., REINHOLTZ C. F., Mechanisms and Dynamics of Machinery, John Wiley and Sons, New York, 1986. MUVDI B. B., AL-KHAFAJI A. W., McNABB J. W., Dynamics for Engineers, Springer-Verlag, New York, 1997.
|