Unit MACHINE DESIGN
- Course
- Mechanical engineering
- Study-unit Code
- 70367312
- Curriculum
- In all curricula
- Teacher
- Filippo Cianetti
- Teachers
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- Filippo Cianetti
- Hours
- 108 ore - Filippo Cianetti
- CFU
- 12
- Course Regulation
- Coorte 2022
- Offered
- 2024/25
- Learning activities
- Caratterizzante
- Area
- Ingegneria meccanica
- Academic discipline
- ING-IND/14
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- Italian
- Contents
- Stochastic analysis. Materials. Static. Statics Complements. Static stress conditions. Fatigue stress conditions. Joints. Non-removable connections. Removable connections. Transmission by gears. Belt transmission. Bearings. Shaft. Springs
- Reference texts
- R. C. JUVINALL, K. M. MARSHEK, Fondamenti di Costruzione di macchine, ed. Città Studi. ISBN 9788825174137
J. E. SHIGLEY, Mechanical Engineering Design, Mc. Graw Hill - Educational objectives
- To be able to analyze and calculate stress and strain in a mechanical component of a mechanical systems.
To be able to schetch a reliable mechanical solutions of simple mechanical assembly. - Prerequisites
- Mechanical technical drawing, Mechanical Technology, Applied Mechanics, Strctural Mechanics.
- Teaching methods
- Lessons and classroom exercises
- Other information
- -
- Learning verification modality
- written and oral test
- Extended program
- Introduction. Aspects and structure of the course.
Stochastic analysis. Introduction to the concepts of probability and reliability. Definition of safety coefficients.
Materials. General information and reminders on the characteristics and properties of metallic materials.
Static. Isostatic structures. Stress characteristics. State of stress of the beams. Checking the sections.
Statics Complements. Hertzian contact. Eulerian instability. Curved beams. Deformations and stiffnesses.
Static stress conditions. States of stress concentration. Strength criteria for yielding and crack of ductile and brittle materials.
Fatigue stress conditions. Fatigue behavior of materials. Factors that influence the fatigue strength of components and machines. Reliability in fatigue. High cycle fatigue design. Damage accumulation and load spectra. Hertzian fatigue.
Joints. Principles of loads transfer.
Non-removable connections. Riveted joints. Screw joints. Welded joints.
Removable connections. Forced joints. Hub shaft joints by keys and splined couplings.
Transmission by Gears. Principles. Tooth fatigue calculation. Tooth wear calculation.
Belt transmission.
Rolling bearings. Types and choice of rolling bearings.
Shaft. Design criteria.
Springs - Obiettivi Agenda 2030 per lo sviluppo sostenibile
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