Machine design Basics II - Screws, Fasteners, Springs, Belt

Description

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 4 courses in 1 which  covers multiple aspects of design of Power screws, Threaded fasteners, Coil Springs and Belt drives

Topics covered:

Power or Lead Screws :

• Specifications of Power screws

• Principle of Operation

• Force analysis

• Self locking feature

• Stress in Power screws

• Sharing of Load and efficiency

Threaded Fasteners

• Mechanism of Fastening - How torque applied clamps the two parts

• Joint diagram

• Fastener Bolt stiffness

• Member stiffness

• Design problem

• Strength limit of Bolts

• Relation between torque and Preload

• Factor of Safety and Causes of Loosening

Coil Springs

• Stress in Compression coil spring

• Wahls factor

• Strain energy and relation of Stiffness

• Spring ends and Design details

• Pre-setting of springs

• Buckling stability

• Torsion springs - Design stresses

• Torsion springs - Torsion rate

Belt drives

• Working principle of Belt drives

• Theory of Belting

• Initial tension

• Design Procedure from manufacturer catalogue

• Design Problem

• V belts Design procedure from standard tables

• Design Problem solved

• Idler pulleys

The Course is designed for Design engineers who apply design principles in designing machine components as part of mechanical systems.

The Course doesn't only give the formulae but discusses on the why and how? of the derivations

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