Download presentation

1
**Equilibrium of a Rigid Body Examples**

2
Example Problem Draw the free-body diagram of the plate.

3
**Example Problem Rx1 Ry1 Rx2 Ry2 Rx3 Ry3**

Does this free-body diagram help? Rx1 Ry1 Rx2 Ry2 Rx3 Ry3

4
Example Problem You have to consider one reaction force from the gusset plate. The components of this force are Rx and Ry. Rx Ry

5
Example Problem Draw the free-body diagram of the weight. B A

6
**Example Problem TB TA Determine the force in each supporting wire.**

TA and TB are the forces inside the cables and equal to reaction forces at A and B. W=50lb

7
Example Problem

8
Example Problem Spanner wrench F

9
Example Problem Set up the following problem: Length A= 5 ft, and length B =10 ft and angle α= 30o. Determine the angle β of the smooth incline in order to maintain equilibrium.

10
Example Problem Use line-of-action to solve the problem

11
Example Problem

12
Class Problem Set up the problem and how would you solve for the resisting force at pin A to maintain equilibrium.

13
Class Problem Set up the problem and how would you solve for the resisting force at pin A to maintain equilibrium.

14
Class Problem

15
Example - Equilibrium The tension force in AC is 28 kN, determine the the required values of tension in AB and AD so that the resultant force of the three forces applied at A is vertical. Determine the resultant force.

16
**FBD - Example Free-body diagram: (Anything missing?)**

Add the dimensions! RA TAC TAD TAB

17
Example-Equilibrium The vector AB is

18
**Example-Equilibrium The unit vector in the AB direction is**

The tension vector TAB is

19
Example-Equilibrium The vector AD is

20
**Example-Equilibrium The unit vector in the AD direction is**

The tension vector TAD is

21
Example-Equilibrium The vector AC is

22
**Example-Equilibrium The unit vector in the AC direction is**

The tension vector TAC is

23
Example-Equilibrium The tension vector TAC= 28 kN is The reaction at A

24
**Example-Equilibrium Apply the equilibrium condition.**

Combine the vectors

25
**Example-Equilibrium Break the components of the forces:**

Use (3) to solve for TAB

26
Example-Equilibrium Plug into (1), solve for magnitude of TAD

27
Example-Equilibrium Use the values to solve for RA

Similar presentations

Presentation is loading. Please wait....

OK

Slide #: 1 Chapter 4 Equilibrium of Rigid Bodies.

Slide #: 1 Chapter 4 Equilibrium of Rigid Bodies.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on acid-base indicators tea Ppt on collection of data Ppt on chapter 12 electricity prices View my ppt online training Led based message display ppt on tv Ppt on power system earthing Ppt on review of literature in research Ppt on land pollution in india Ppt online shopping project proposal Ppt on dot net basics