The course is divided in two main parts. In the first one the fundaments of Machine Design are presented. These are topics which usually are not treated in the courses of strength of materials but are of special interest for a mechanical engineer. The second part of the course analyses the strength of the Machine elements
Course Content - Last names M-Z
The course is divided in two main parts. In the first one the fundaments of Machine Design are presented. These are topics which usually are not treated in the courses of strength of materials but are of special interest for a mechanical engineer. The second part of the course analyses the strength of the Machine elements and their functionalities
1) G. Nerli et al. - Costruzione di Macchine, 2005 - Editrice Noccioli, Firenze.
2) G. Nerli, M. Pierini, Costruzione di Macchine: Applicazioni, 2008, Firenze University Press, Firenze; ISBN: 978-88-8453-749-2 (paper version); 978-88-8453-699-0 (electronic version).
3) R.Capitani, M.Carfagni, G.Nerli - Esercizi di Costruzione di macchine. Ed. Levrotto & Bella - Torino 1992
The slides used during the lectures are available for download following the indications provided by the teacher at the beginning of the course.
Additional textbooks:
R.C.Juvinall, K.M.Marshek - Machine Component Design - John Wiley & Sons.
R.G.Budynas, J.K.Nisbett - Shigley's Mechanical Engineering Design - McGraw-Hill.
A.De Paulis, E.Manfredi - Costruzione di macchine - Pearson. ISBN 978-88-7192-783-1.
1) G. Nerli, M. Pierini, Costruzione di Macchine, Editrice Esculapio, ISBN: 9788874888542, DOI: 10.15651/978-88-748-8854-2.
2) G. Nerli, M. Pierini, Costruzione di Macchine: Applicazioni, 2008, Firenze University Press, Firenze; ISBN: 978-88-8453-749-2 (paper version); 978-88-8453-699-0 (electronic version).
3) R.Capitani, M.Carfagni, G.Nerli - Esercizi di Costruzione di macchine. Ed. Levrotto & Bella - Torino 1992
The slides used during the lectures are available for download following the indications provided by the teacher at the beginning of the course.
Additional textbooks:
R.C.Juvinall, K.M.Marshek - Machine Component Design - John Wiley & Sons.
R.G.Budynas, J.K.Nisbett - Shigley's Mechanical Engineering Design - McGraw-Hill.
A.De Paulis, E.Manfredi - Costruzione di macchine - Pearson. ISBN 978-88-7192-783-1.
Learning Objectives - Last names A-L
To provide the know-how necessary to design the machine elements and the mechanical groups in general. The attention is mainly focused on the functional and structural aspects.
To provide systematic knowledge and understanding of the key aspects of mechanical design of industrial engineering and its methods. In particular: understanding of which are the most suitable methods in order to define a product and its characteristics; knowledge of the technology of the materials that can be used, of the mechanical study of parts and assemblies, their dimensioning, their static and dynamic behaviour and interactions between components. The technologies for their production and their graphic representation are also areas of knowledge and understanding.
Applying knowledge and understanding related to the most appropriate methods of analysis, modelling, verification and experimentation to design, analyze and test machines and plants. This includes: the interpretation and drafting of mechanical parts and machines (also using dedicated CAD systems); the sizing and the functional and structural verification of components and mechanical groups subjected to static and fatigue stress; the functional setting of the design of a mechanical system, applying the principles of kinematics and static principles; analysis of the characteristics of metallic and polymeric materials for the production; the choice of the best production process aimed at the creation of mechanical components; analysis and design of production systems including the study of reliability, safety and economic and environmental sustainability.
Learning Objectives - Last names M-Z
Provide the necessary knowledge to perform the design and verification of the elements and mechanical groups, with particular reference to the resolution of functional and structural problems.
Provide systematic knowledge of key aspects of mechanical design, industrial engineering and related methods; for the latter, the understanding of which ones are most suitable for the purpose of defining a product and its characteristics. The technology of usable materials, the mechanical study of parts and assemblies, their sizing, the study of their static and dynamic behavior and the interactions between components, the technologies for their production, their graphic representation are the areas of knowledge and understanding .
The ability to choose and apply appropriate analytical, modeling, verification and experimentation methods to design, analyze and test machines and plants including: the interpretation and realization of detailed and total drawings, even with the use of software systems; the sizing and functional and structural verification of statically and fatigue components and mechanical units; the functional setting of the design of a mechanical system, applying the principles of kinematics, kinetostatics, static and dynamics; the analysis of the characteristics of metallic and polymeric materials for the construction of components, taking into account the conditions of use; the ability to choose the best production process for the realization of mechanical components; the analysis and design of production systems including the reliability, safety and economic and environmental sustainability study.
Prerequisites - Last names A-L
Mechanical drawings, Strength of materials, Applied mechanics, Mechanical technologies.
Prerequisites - Last names M-Z
Mechanical drawings, Strength of materials, Applied mechanics, Mechanical technologies.
Written and oral exam.
The written test consists in the drafting of a constructive design of a machine of a mechanical group. The oral exam includes: a theory question; the analysis of the design of a mechanical group, with evaluation of the point of view of one or more elements of the machines included in the group; the design of an element of the machines.
The student must be able to implement a constructive solution that works to pass the oral exam. As for the oral examination, the student must have acquired sufficient knowledge of the main topics covered in the course.
Type of Assessment - Last names M-Z
Written and oral exam.
The written test consists in the constructive design of a machine or a mechanical group. The oral exam includes: a theory question; the analysis of the design of a mechanical group, with evaluation of the functioning and the distinction of one or more elements of the machines included in the group; the design of an element of the machines.
The student must be able to carry out a functioning and "mountable" construction solution to pass the written exam. As regards the oral examination, the student must have acquired sufficient knowledge of the main topics covered in the course.
Course program - Last names A-L
Mechanical design and mechanical design process
- Stiffness and strength considerations
- Materials for mechanicals parts
- Design for static strength
- Design for fatigue strength
Topics of interest for machine design:
- Hertz contacts
- pressure vessel
- rotating parts
Machine elements:
- bolted joints
- welded joints
- shrink fits joints
- bonded joints
- design of axle and shaft
- keys and pins
- screws connections
- power screws
- journal bearings
- rolling contact bearings
- springs
- spur, helical, worm and bevel gears
- belts and roller chain
Course program - Last names M-Z
Mechanical design and mechanical design process
- Stiffness and strength considerations
- Materials for mechanicals parts
- Design for static strength
- Design for fatigue strength
Topics of interest for machine design:
- Hertz contacts
- pressure vessel
- rotating parts
Machine elements:
- bolted joints
- welded joints
- shrink fits joints
- bonded joints
- design of axle and shaft
- keys and pins
- screws connections
- power screws
- journal bearings
- rolling contact bearings
- springs
- spur, helical, worm and bevel gears
- belts and roller chain