First cycle
degree courses
Second cycle
degree courses
Single cycle
degree courses
School of Engineering
MECHANICAL ENGINEERING
Course unit
MACHINE DESIGN 1 (Numerosita' canale 1)
INM0018057, A.A. 2019/20

Information concerning the students who enrolled in A.Y. 2017/18

Information on the course unit
Degree course First cycle degree in
MECHANICAL ENGINEERING
IN0506, Degree course structure A.Y. 2011/12, A.Y. 2019/20
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Degree course track FORMATIVO [001PD]
Number of ECTS credits allocated 9.0
Type of assessment Mark
Course unit English denomination MACHINE DESIGN 1
Department of reference Department of Industrial Engineering
Mandatory attendance No
Language of instruction Italian
Branch PADOVA
Single Course unit The Course unit can be attended under the option Single Course unit attendance
Optional Course unit The Course unit can be chosen as Optional Course unit

Lecturers
Teacher in charge GIOVANNI MENEGHETTI ING-IND/14

Mutuated
Course unit code Course unit name Teacher in charge Degree course code
IN04112373 MACHINE DESIGN GIOVANNI MENEGHETTI IN0523

ECTS: details
Type Scientific-Disciplinary Sector Credits allocated
Core courses ING-IND/14 Mechanical Design and Machine Building 9.0

Course unit organization
Period Second semester
Year 3rd Year
Teaching method frontal

Type of hours Credits Teaching
hours
Hours of
Individual study
Shifts
Lecture 9.0 72 153.0 No turn

Calendar
Start of activities 02/03/2020
End of activities 12/06/2020
Show course schedule 2019/20 Reg.2011 course timetable

Syllabus
Target skills and knowledge: The students learn the basic concepts on mechanical behaviour of materials oriented to assess the structural strength of components and structures under static as well as fatigue loadings. A project will be developed concerning the design and assessment of a reduction gear unit.
Examination methods: Discussion and evaluation of the project with maximum score 3 points.
Written examination-first part: three exercises, maximum three hours
Written examination-second part: three questions concerning theory, maximum 45 minutes
The final score of the written examination is:

(Score_FirstPart + Score_SecondPart + Score_Project)/2

Oral examination only for students having a score of the written examination equal to or greater than 26. In this case, final score is the average between the scores of written and oral examinations.
Assessment criteria: The discussion of the project evaluates the skills of the student to perform correctly the technical calculations, to adopt appropriate technical choices and the technical quality of the written report.
The written examination with three exercises evaluates the ability to solve a practical structural strength assessment problem by using the appropriate theory and by performing calculations correctly.
The written examination with three questions of theory evaluates the knowledge of demonstrations concerning the different theories, along with their limitation of applicability.
the oral examination evaluates the appropriateness of the technical language and the methodological adequacy in presenting the theoretical topics.
Course unit contents: Stress/strain state
Mohr circles. Criteria for Static strength (Guest, Bach, Von Mises).
Curved beams, thin-walled vessels.
Mechanical behaviour of materials: engineering and true stress/strain quantities.
Stress controlled fatigue. Constant amplitude fatigue behaviour of metallic materials. Main parameters affecting fatigue behaviour of metallic materials. Variable amplitude fatigue. Cycle counting.
Strain-controlled fatigue. Material characterisation, Manson-Coffin curve. Notch stress/strain estimation: Neuber rule and constancy of the strain concentration factor. Limitations of applicability of the strain-life approach.

Design, analysis and structural strength assessment of a reduction gear unit.
Planned learning activities and teaching methods: Two Theoretical lectures and one Exercise lesson per week.
Project of the course to carry out by groups of students.
Additional notes about suggested reading: Reference textbooks:
Bernasconi, Filippini, Giglio, Lo Conte, Petrone, Sangirardi, Fondamenti di Costruzione di Macchine, McGraw-Hill.
Davoli, Vergani, Beretta, Guagliano, Baragetti, Costruzione di Macchine 1, McGraw-Hill.
J.M. Gere, Mechanics of Materials, Vth edition, Brooks/Cole.
Patnaik, Hopkins, Strength of Materials, Elsevier.
N.E. Dowling; Mechanical behaviour of materials, Prentice Hall.
Textbooks (and optional supplementary readings)
  • B. Atzori, Appunti di Costruzione di Macchine. --: Ed. Libreria Cortina, 1999. Cerca nel catalogo
  • P. Lazzarin, Lezioni di Costruzione di Macchine. --: Ed. Libreria Cortina, 2005. Cerca nel catalogo