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Layouting and Mounting provisions
8 Lessons -
Shaft Design calculations
16 Lessons-
StartStress analysis - Intro
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StartExample Problem - stress analysis and design Part 1
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StartMean and Alternating stress and Theory of failure applied
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StartStress concentration factor - theoretical
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StartNotch sensitivity and Stress concentration factor in fatigue
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StartFinding Stress Concentration factors from graph for problem
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StartFatigue Endurance limit and modifying factors
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StartFatigue Failure criteria - Goodman line
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StartDesign Changes and Design equation
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StartStress concentration factors for preliminary design and ways to reduce
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StartDeflection and Slope - Analysis
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StartCritical speed - introduction
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StartStresses due to Interference fit
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StartTorque capacity in interference fits
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StartSolid vs Hollow shaft with example
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StartCouplings
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Bearing selection
17 Lessons-
StartIntroduction to Bearing selection
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StartFactors which drive Bearing selection - diagram
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StartTypes of Rolling contact bearings
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StartComparison Table
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StartSummary
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StartCause of failure -
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StartContact stresses
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StartBearing Life Derivation
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StartModified Life and modification factors 1
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StartViscosity Ratio
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StartDetermining equivalent Bearing application load
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StartMax Axial load and minimum radial load
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StartExercise in Bearing selection - Part 1
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StartExercise in Bearing selection - Part 2
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StartBearing Life guidelines of different classes of machinery
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StartLubrication
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StartMounting options
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Gears
27 Lessons-
StartConjugate action - Principle of Gearing
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StartInvolute profile construction
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StartCreating involute profile in CAD
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StartSpur gear design basics
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StartSpur Gear Design Workflow in CAD - Fusion 360
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StartContact Ratio- How is it calculated?
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StartInterference - condition for interference in design ?
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StartAvoiding interference and concept of Backlash
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StartHelical Gear design Basics
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StartHelical Gear CAD design worklfow
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StartBasics of Bevel Gear
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StartTredgolds approximation
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StartBevel Gear Design workflow part 1
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StartBevel Gear Design workflow part 2
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StartWorm Gearset design basics
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StartWorm gearset design workflow in CAD part 1
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StartWorm gearset design workflow in CAD part 2
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StartWorm gearset design workflow in CAD part 3
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StartForce analysis - Spur gear
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StartProblem solved- Force analysis - Spur gear-
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StartForce analysis - Bevel gear
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StartForce analysis - Bevel gear- finding Average Radius
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StartForce analysis - Helical gear
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StartForce analysis - Worm gear
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StartGear tooth Durability and Failure modes
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StartLewis Bending equation and Design for strength
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StartPittance equations
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Machine element design Basics - I - Shaft, Bearings & Gears
Learn about the fundamentals of design of common rotating machinery components in mechanical design engineering
Course Summary
The course 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.
Course Curriculum
Mufaddal Rasheed
Mufaddal Rasheed is a mechanical design engineer , inventor and online entrepreneur working towards building a comprehensive knowledge resource base for students and mechanical design professionals with focus on building skills and knowledge to design mechanical products
The goal is to build a comprehensive knowledge eco-system for mechanical design engineers and aspirants which would prepare an individual for engineering innovation and advance their careers in terms of knowledge.
Experienced professional with 7+ years experience in Automotive product development designing chassis and suspension systems and being part of multiple projects from concept to production.
He is passionate about mechanical design and innovation and writes regularly on Quora with a Top writer badge.
Core belief is that engineering is a lifelong learning process and for a designer it is "the more you know the better you design"
Working towards developing an alternate solution to the problems of engineering education and upskilling for economic growth.
