Machine components design

Course objectives

• To provide the basic concepts and tools of structural design of machines and mechanisms. • To describe the most important failure modes of machine elements on the basis of the knowledge of the mechanical behavior of materials and of the load analysis, taking into account both static and dynamic load conditions. • To provide a set tools to be used for a correct choice and/or design of the most common machine elements.Knowledge and Understanding: successful students will know the fundamental failure modes of engineering materials and machine elements. Understanding the basic damage theories and rules that are nowadays currently used within the engineers’ community. They also will know how modeling both materials and machine components for life prediction and failure control. Referring, in particular, to the most common elements used in any mechanical system, such as shafts, bearings, bolts and springs. Skills and Attributes: successful students will be able to handle the most common tools and methods used in structural safe design of the most common components present in any mechanical systems. They also should know how to face a new project of a mechanical system starting from its functional design, till the choice of the materials able to satisfy the requirements of each components in terms of strength, deformation, fatigue life, wear, impact, and so on.

Channel 1
GIOVANNI BATTISTA BROGGIATO Lecturers' profile

Program - Frequency - Exams

Course program
Fundamentals of machine component design:General concepts about machine element damaging and failure. Mechanical behavior of materials and their assessment through the tensile test. Stress and strain analytical description by the Mohr circle. Constitutive functions: the Hooke law. Machine element design criteria:Definition of equivalent, limit and admissible stresses. Meaning and use of the safety factor. Failure criteria. Comparison among the principal failure criteria. Recalls on the analysis of isostatic beam systems.High-Cycle fatigue:General description of fatigue damage. Laboratory test for materials fatigue assessment. Factors that affect fatigue behavior of materials and machine elements. Fatigue curves. Fatigue failure theories and design criteria.Cumulative damage:Miner linear damage theory. Manson double-linear damage rule.Design and analysis of machine elements:Shafts. Slider and rolling-element bearings. Power transmission fundamentals. Springs. Threaded Fastener. Welded joints.
Books
J. E. Shigley, C. R. Mischke, R. G. Budynas, Progetto e Costruzione di Macchine, McGraw-Hill R. C. Juvinall, K. M. Marshek, Fondamenti di Costruzione di Macchine, CittàStudi Edizioni (2017)
Exam mode
Written and oral exam.
  • Lesson code1018756
  • Academic year2024/2025
  • CourseMechanical Engineering
  • CurriculumIngegneria meccanica (percorso valido anche ai fini del conseguimento del doppio titolo italo-venezuelano)
  • Year3rd year
  • Semester1st semester
  • SSDING-IND/14
  • CFU9
  • Subject areaIngegneria meccanica