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King Fahd University of Petroleum & Minerals

King Fahd University of Petroleum & Minerals. Mechanical Engineering Dynamics ME 201 BY Dr. Meyassar N. Al-Haddad Lecture # 29. Summary. Relative Motion Analysis: Velocity. y. x. Indicate the direction of velocities of points A, B, C. Example 16-9. Rolling wheels. C.

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King Fahd University of Petroleum & Minerals

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

  2. Summary

  3. Relative Motion Analysis: Velocity

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

  5. Example 16-9

  6. Rolling wheels C Rolls without slipping

  7. D C IC Instantaneous center of zero velocity

  8. Example 16-11

  9. 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

  10. at=0 Rolling wheel with-out slipping G

  11. Example 16-18

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

  13. Velocity

  14. Acceleration of origin Acceleration of the object a r Tangential acceleration w2 r Normal acceleration Coriolis acceleration Acceleration

  15. Example 16-20 aC/D = ? wDE = ? aDE= ?

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

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