1. King Fahd University of Petroleum & Minerals
Mechanical Engineering
Dynamics ME 201 BY
Dr. Meyassar N. Al-Haddad
Lecture # 26

2. Translation
Position
Velocity
Acceleration

3. Rotation

4. General Plane Motion

5. Procedure for Analysis
Establish the direction of x and y
Indicate the direction of VA, VB, w, and rB/A
Apply VB= VA+ w x rB/A in a vector form
Evaluate the cross product
Equate the respective i and j components to obtain two scalar equation
Solve for w and VB i j k +

6. Indicate the direction of velocities of points A, B, Cx y

7. Indicate the direction of velocities of points A, B, Cx y

8. Example 16-9 i j k +

9. Rolling wheels C
Rolls without slipping

10. Center of Zero VelocityB A
Permanent Center of zero velocity

11. D
Instantaneous center of zero velocity C IC

12. Location of IC Knowing vA and w

13. Location of IC knowing the line of action of vA and vB

14. Location of IC knowing the line of action of vA and vB

15. Example 16-10 IC
rB/IC w
rC/IC q

18. Example 16-10 C
Translation

19. Example 16-11

20. Example

21. Example 16-12

22. Thank You