Machine design Basics - I - Shaft, Bearings & Gears




Machine design Basics - I - Shaft, Bearings & Gears

Machine design is a large subset of study under mechanical engineering design which includes design of common components used in machines.

This is a mega-course of 3 courses in 1 which  covers multiple aspects of design of Shafts and  elements which are generally mounted it - Bearings and Gears.

It is a deep dive into the Shaft design process and selection also deals with the Bearing selection in detail . Then moving to a deep dive in Gear design with practical CAD design of gears based on input specifications.

Topics covered:

Shaft and layout design

  • Basics of simple power transmission system design

  • Loads and Load cases

  • Materials and manufacturing of shafts

  • Basics of Shaft design

  • Layout scheme and General lay outing

  • Keys and key ways

  • Set screws and collars

  • Splines and Serrations design selection based on standards

  • Interference and press fits

  • Stress analysis - method of analysis

  • Incorporation of stress concentration factors

  • Notch sensitivity in fatigue

  • Endurance limit and modifying factors

  • Deflection and Slope

  • Stress due to interference fits

  • Torque capacity of press fits

  • Solid vs Hollow shafts and Couplings

Bearing Selection

  • Factors which drive Bearing selection

  • Contact stresses study

  • Bearing life equation derivation and L10 life

  • Modified Life - Factors

  • Contamination factor, viscosity ratio

  • Determining equivalent bearing load

  • Mounting scheme

  • Example to go through the selection process

Gear design

  • Conjugate action in Gears

  • Involute profile construction

  • Spur gear design basics and CAD workflow (fusion 360)

  • Contact Ratio and Interference

  • Basics of Helical gear design and CAD workflow (fusion 360)

  • Basics of Bevel gear design and CAD workflow (fusion 360)

  • Basics of Worm gear design and CAD workflow (fusion 360)

  • Force analysis of spur gear

  • Force analysis of Bevel gear

  • Force analysis of Helical gear

  • Force analysis of Worm gear

  • Stress calculations for standard tooth profile

  • Pitting equations

The course is intended to be a library of knowledge regarding machine components and will be expanded further in the future  with more examples and case studies.

Learn about the fundamentals of design of common rotating machinery components in mechanical design engineering

Url: View Details

What you will learn
  • Basics of Shaft design
  • Basics of Lay outing for power transmission systems
  • Shaft design for strength considering stress concentration and fatigue

Rating: 4.46154

Level: Intermediate Level

Duration: 8 hours

Instructor: Mufaddal Rasheed


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