King Fahd University of Petroleum

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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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Rigid-Body Motion

• Types of rigid body planar motion
• Translation
• Rotational about fixed axis
• General plane motion

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Summary
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Problem 16-14
Reverse gear transmission wB ?
G
rG 80 mm rC rD 40 mm rE rB 50mm rF 70 mm
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Problem 16-xx
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Translation
Position
Velocity
Acceleration
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Rotation
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Relative Motion Analysis Velocity
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Indicate the direction of velocities of points A,
B, C
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Example 16-9
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Rolling wheels
C
Rolls without slipping
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Location of IC knowing the line of action of vA
and vB
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Example 16-11
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Example 16-12
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Example
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Relative-Acceleration equation
aB acceleration of point B aA acceleration of
the base point A a angular acceleration of the
body w angular velocity of the body rB/A
relative-position vector drawn from A to B
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Rolling wheel with-out slipping
G
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Example 16-17
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Example 16-18
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Examples of Non-Relative-Motions )sliding
connections and has two independent motion)
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Velocity
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Acceleration
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Example 16-20
aC/D ? wDE ? aDE ?