Elements of Machine Design II

COURSE CONTENT

Elastic elements, springs, wedges.

Friction couplings.

Power transfer.

Shafts, materials, manufacturing, configuration, stress design and critical speeds.

Shaft’s dynamic analysis.

Design of shafts with a computer.

Belts design.

Clutches and brakes Design.

Hertz theory.

Lubrication, stribeck curve, journal bearings.

Rolling bearings and elastohydrodynamic lubrication

Theory of gears and gear teeth’s.

Various kinds of gears (worm, helical, bevel, spiral bevel gears, planetary gears), configurations, calculation methods, industrial applications and stress analysis design.

LEARNING OUTCOMES

The course is a crucial course in machine and product design. The several topics of the course aim the students of the Department of Mechanical and Aeronautical Engineering in their knowledge of calculating and designing machine elements as well as their assembly. The acquired knowledge is related to the following topics: Elastic elements, springs, wedges. Friction couplings. Power transfer.

Shafts, materials, manufacturing, configuration, stress design and critical speeds. Shaft’s dynamic analysis. Design of shafts with a computer.

Belts (flat and V type) design. Clutches and brakes Design. Hertz theory.

Lubrication, stribeck curve and journal bearings.

Rolling bearings and elastohydrodynamic lubrication

Theory of gears and gear teeth’s.

Various kinds of gears (worm, helical, bevel, spiral bevel gears, planetary gears),configurations, calculation methods, industrial applications and stress analysis design.

Upon successful completion of the course the student will be able to:

• Has understand concepts related to theory in the design and application of Machine Elements in typical problems of Mechanical Engineer.
• To have methodological and quantitative understanding through the solving of related exercises, issues related to the design of machine components in applications of Mechanical Engineering.
• In the Machine Design Laboratory, to has performed experimental tests related to the stresses of various machine elements (rotor balancing, finite element study and truss construction experiments, rotors fatigue) taught in theory and tutorial exercises.
• Through the semester project and the collaboration with the  team members, they have to undergo a synthetic study (product design and design of machine elements),  related to the design , static and dynamic of machine elements either  in independent operation or in assembly mode  (product ). The student and the team are therefore also practicing with basic data regarding the cost of each machine element and the product as a whole.