Lecture 3 - ENGR-1100 Introduction to Engineering Analysis...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 3 Notes courtesy of: Prof. Yoav Peles ENGR-1100 Introduction to Engineering Analysis
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Homework Assignment (due next class) From Statics textbook (R&S): Problem 2-38 Problem 2-61 Problem 2-81
Background image of page 2
Lecture outline Forces as vectors Resultant of two concurrent forces Resultant of three or more concurrent forces Resolution of force into components
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Characteristics of a force A force is characterized by the following: (1) Magnitude (2) Direction (3) Point of application F B F A F B
Background image of page 4
x y F θ Force representation x y F 6m 5m x y z θ x θ y θ z F x y z F 7 m 5 m 4 m Two dimensions Three dimensions
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Principle of Transmissibility The external effect of a force on a rigid body is the same for all points of application of the force along its line of action (force is a sliding vector!) Push Pull Line of action
Background image of page 6
Forces classification Contact or surface forces Example: push or pull Body forces Example: gravitational forces, magnetic forces
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Concurrent forces A force system is said to be concurrent if the action lines of all forces intersect at a common point
Background image of page 8
Two concurrent forces Two concurrent forces F and F acting on The two forces are vectorially added to get R R F F
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Three or more concurrent forces Again, vector addition rules: F + F + + F = R F 12 F F F F F 34 12 F 12 F F R
Background image of page 10
Example
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/04/2011 for the course ENGR 1100 taught by Professor Anderson during the Fall '06 term at Rensselaer Polytechnic Institute.

Page1 / 33

Lecture 3 - ENGR-1100 Introduction to Engineering Analysis...

This preview shows document pages 1 - 12. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online