Course title: Fundamentals of Machine Component Design Number of credits: 5
Name and position of course coordinator: Dr. Szabolcs Szávai
Suggested semester: spring/autumn
Weekly lecture + seminar hours: 2
Assessment:colloquium
Course webpage: ….(if there is one)

 

Course objectives:
The main objective of this course is to provides rules for the design of general-purpose machine elements such as joints, shafting, coupling & clutches, roller contact and sliding bearings and transmissions.
Course content and structure:
The Design Process (Problem identification ,Preliminary ideas, Selection of the best idea, Refinement, Analysis, Implementation) Shafting (Design approach for shafts, Checkout calculations, Fatigue analysis)Fatigue Analysis (Combined static load, Fluctuating load, Wőhler diagram, Fatigue, Endurance limit for a machine element (modification factors, Safety factor, Selection of shape for fatigue)) Power Screws (Efficiency general, Thread, Distribution of forces in a screw-nut mechanism, Torque, Efficiency of a power screw mechanism)Bolted Connections (Load tangent to the plane of contact (loose, fitted bolts), Locking means, preload)Welded Connections (Stress analysis, Design of welded joints) Shaft-Hub Connections (Positive engagement, Connections by friction)Press-fit Connections ( Formulation of the problem, Stress and strength analysis, Selection of a fit)Couplings (Equivalent (reflected) inertia, Selection of a coupling, Rigid couplings, Flexible couplings, Elastic couplings)Clutches (Analysis , Friction torque vs. design parameters, Actuation systems, Operating modes)Brakes (A cone brake, Band brakes)Roller Contact Bearings (Roller contact vs. plain surface (journal) bearings, Selection of the service life, Calculation of the equivalent load, Bearing arrangements, Selection of fits, Lubrication and sealing)Friction and Lubrication (Coefficient of friction, Properties of bearing materials, Bearing parameter (the Stribeck curve) The Full-film Lubrication, Reynolds equation)Transmission Systems (Function of a transmission, Infinitely variable transmissions, Pulley Transmissions, Belt tensioning systems, Gear Transmissions)
Evaluation method:
 
Required reading:
Andrzej Golenko; Fundamentals of Machine Design 2010
Suggested reading:
Juvinal, R. C. - Marshek, K. M.: Fundamentals of Machine Component Design, John Wiley, 2000Shigley J.E.: Standard Handbook of Mechanical Engineering, McGraw Hill BookCompany, 1996Mott R.L.: Machine Elements in Mechanical Design, Prentice Hall, 2003