Dry Friction - Engineering Mechanics (Statics)

Analysis of equilibrium of rigid bodies subjected to dry (Coulumb) friction, and its applications to screws, wedges, belts and bearings.

23

13 hrs

$ 10.00

Payment required for enrolment
Enrolment valid for 12 months
This course is also part of the following learning track. You may join the track to gain comprehensive knowledge across related courses.
MEE 205: Engineering Mechanics I (Statics)
MEE 205: Engineering Mechanics I (Statics)
Comprehensive treatise of static equilibrium of particles and rigid bodies, with focus on the stability of machines and structures. Curated for second-year students of engineering and at Obafemi Awolowo University, Ile-Ife, Nigeria. Students and professionals with similar learning goal will also find this learning track useful.

Comprehensive treatise of static equilibrium of particles and rigid bodies, with focus on the stability of machines and structures. Curated for second-year students of engineering and at Obafemi Awolowo University, Ile-Ife, Nigeria. Students and professionals with similar learning goal will also find this learning track useful.

Course Chapters

1
Introduction

Welcome to the course and definition of terms - friction, dry friction, fluid friction, lubrication, etc.

Chapter lessons

1.Welcome9:58

Welcome to the course, course outline, prerequisites and references.

2.Friction23:06

Meaning of friction and how to identify problems involving friction.

3.Types of friction5:52

Meaning of dry friction and fluid friction; meaning and use of lubrications.

4.Equilibrium6:57

Review of the conditions and equations of equilibrium of particles and rigid bodies in two dimensions.

2
Laws of Dry Friction

Fundamental principles of dry friction - meaning of friction, coefficients of friction, angles of friction, etc.

Chapter lessons

1.Static and kinetic friction forces7:18

Meaning of static and kinetic friction forces and when they are applicable in dry friction.

2.Static and kinetic friction coefficients7:18

Meaning and use of coefficients of static and kinetic friction between surfaces in dry friction.

3.States of rest or relative motion8:15

Different states of rest or relative motion between surfaces in contact, and the conditions for each state.

4.Angles of friction38:12

Meaning and use of angles of static and kinetic friction, and angle of repose.

3
Problems Involving Dry Friction (1)

General analysis of problems involving dry friction - for particles.

Chapter lessons

1.Procedure13:21

General procedure for analysis of problems involving dry friction - for particles.

2.Worked examples (1)28:10

Worked examples on analysis of problems involving dry friction - for particles.

3.Worked examples (2)27:45

More worked examples on analysis of problems involving dry friction - for particles.

4
Problems Involving Dry Friction (2)

General analysis of problems involving dry friction - for rigid bodies.

Chapter lessons

1.Procedure12:58

General procedure for analysis of problems involving dry friction - for rigid bodies.

2.Worked examples (1)21:15

Worked examples on analysis of problems involving dry friction - for rigid bodies.

3.Worked examples (2)29:07

More worked examples on analysis of problems involving dry friction - for rigid bodies.

4.Worked examples (3)11:44

More worked examples on analysis of problems involving dry friction - for rigid bodies.

5
Wedges

Analysis of dry friction on wedges.

Chapter lessons

1.Procedure13:06

Principles and procedure for analysis of frictional forces on wedges.

2.Worked examples (1)28:33

Worked examples on analysis of frictional forces on wedges.

3.Worked examples (2)16:22

More worked examples on analysis of frictional forces on wedges.

6
Screws

Analysis of dry friction on square-threaded screws.

Chapter lessons

1.Properties23:30

Properties of square-threaded screws.

2.Procedure34:02

General principles and procedure for analysis of frictional forces on square-threaded screws.

3.Worked examples (1)22:25

Worked examples on analysis of frictional forces on square-threaded screws.

4.Worked examples (2)11:09

More worked examples on analysis of frictional forces on square-threaded screws.

7
Belts

Analysis of frictional forces on flat belts.

Chapter lessons

1.Procedure11:01

General principles and procedure for analysis of frictional forces on flat belts.

2.Worked examples (1)18:24

Worked examples on analysis of frictional forces on flat belts.

3.Worked examples (2)40:03

More worked examples on analysis of frictional forces on flat belts.

8
Thrust Bearings

Analysis of frictional forces on thrust bearings - collar bearings, pivot (end) bearings and disks.

Chapter lessons

1.Procedure18:47

General principles and procedure for analysis of frictional forces on thrust bearings - pivot (end) and collar bearings, disks.

2.Worked examples (1)9:14

Worked examples on analysis of frictional forces on thrust bearings - pivot (end) and collar bearings, disks.

3.Worked examples (2)8:42

More worked examples on analysis of frictional forces on thrust bearings - pivot (end) and collar bearings, disks.

9
Journal Bearings

Analysis of frictional forces on journal bearings.

Chapter lessons

1.Procedure25:47

General principles and procedure for analysis of frictional forces on journal bearings.

2.Worked examples (1)16:20

Worked examples on analysis of frictional forces on journal bearings.

3.Worked examples (2)26:38

More worked examples on analysis of frictional forces on journal bearings.

10
Wheels

Analysis of frictional forces (rolling resistance) on wheels.

Chapter lessons

1.Procedure24:11

General principles and procedure for analysis of frictional forces (rolling resistance) on wheels.

2.Worked examples (1)20:24

Worked examples on analysis of frictional forces (rolling resistance) on wheels.

3.Worked examples (2)15:56

More worked examples on analysis of frictional forces (rolling resistance) on wheels.