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King Fahd University of Petroleum & Minerals Mechanical Engineering Dynamics ME 201 BY Dr. Meyassar N. Al-Haddad Lecture # 29.

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Presentation on theme: "King Fahd University of Petroleum & Minerals Mechanical Engineering Dynamics ME 201 BY Dr. Meyassar N. Al-Haddad Lecture # 29."— Presentation transcript:

1 King Fahd University of Petroleum & Minerals Mechanical Engineering Dynamics ME 201 BY Dr. Meyassar N. Al-Haddad Lecture # 29

2 Rigid-Body Motion Types of rigid body planar motion: –Translation –Rotational about fixed axis –General plane motion

3 Summary

4 r1r1 r2r2 s, v, a

5 Example 16-2 Rest  A = 2 rad/s 2  P =? a P =?    = 10 revelations of B

6 Problem 16-14 r G = 80 mm r C = r D = 40 mm r E = r B = 50mm r F = 70 mm G Reverse gear transmission  B = ?

7 Problem 16-xx

8 Translation Position Acceleration AB Velocity AB

9 Rotation

10 Relative Motion Analysis: Velocity

11 Indicate the direction of velocities of points A, B, C x y

12 Example 16-9

13 Rolling wheels Rolls without slipping C

14 IC C D Instantaneous center of zero velocity

15 Location of IC knowing the line of action of v A and v B

16

17 Example 16-11

18 Example 16-12

19 Example

20 a B = acceleration of point B a A = acceleration of the base point A  = angular acceleration of the body  = angular velocity of the body r B/A = relative-position vector drawn from A to B Relative-Acceleration equation

21 Rolling wheel with-out slipping G a t =0

22 Example 16-17

23 Example 16-18

24 Examples of Non-Relative-Motions )sliding connections and has two independent motion)

25 Velocity

26  r Tangential acceleration  2 r Normal acceleration Coriolis acceleration Acceleration of the object Acceleration of origin Acceleration

27

28

29 Example 16-20a C/D = ?  DE = ?  DE = ?

30 a) the velocity of the ball at this instant b) the coriolis acceleration, show the direction


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