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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. Outline. Department Mission Textbook Grading system Homework Attendance Exams Course Coverage Section 12.1 Introduction Vector and Scalar review

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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

  2. Outline • Department Mission • Textbook • Grading system • Homework • Attendance • Exams • Course Coverage • Section 12.1 Introduction • Vector and Scalar review • Distance and Displacement review • Speed and Velocity • Examples

  3. Department Mission • The department is committed to providinghighest quality education in mechanical engineering, conducting world-class basic and applied research, addressing the evolving needs of industry and society, and supporting the development of more competitive and new industry in the Kingdom of Saudi Arabia.

  4. Textbook Engineering Mechanics, Dynamics R. C. Hibbeler, 10th Edition & Dynamic Study Pack

  5. Grading system • 5% Attendance • 10% Homework Assignments • 20% 1st Major Exam • 20% 2nd Major Exam • 10% Quizzes • 35% Final Exam

  6. Homework • Homework problems are pre-assigned in syllabus 5 problems every week. • All homework problems assigned during a given week are due in class on the following Monday unless stated otherwise. • Late Homework will not be accepted

  7. Attendance • Attendance will be checked during each lecture. The only acceptable excuse for absence is the one authorized by the Deanship of Student Affairs on their prescribed form. This excused should be presented to the instructor no later than one week following the resumption of class attendance. For any unexcused absence, 0.5 marks will be deducted from the attendance grade. Any student having more then 9 unexcused absences will receive a grade of DN for the course.

  8. Office Hours • Office Hours : • 10:00 – 11:00 Every Day • Location • Building 22 • Room 233 • Phone 860-4344

  9. Exam Days • 1st Major Exam (20%) • March – 22nd, 2005 (Room 6:125) • 2nd Major Exam (20%) • May- 9th, 2005 (Room 6:125) • Final Exam (35%) • To Be Arranged by the registrar

  10. Course coverage • Kinematics of particle in various motion. (Chapter 12) • Force and acceleration. (Chapter 13) • Work and energy relations. (Chapter 14) • Impulse and Momentum. (Chapter 15) • Kinematics of a rigid bodies in plane motion. (Chapter 16) • Force and acceleration of a rigid bodies . (Chapter 17) • Work and energy relations of a rigid bodies. (Chapter 18) • Impulse and Momentum of a rigid bodies (Chapter 19)

  11. Areas of mechanics (Section12.1)

  12. Areas of mechanics (section12.1) • Statics (CE-201) - Concerned with body at rest • Dynamics (ME-201) • Concerned with body in motion • Kinematics, is a study the geometry of the motion s, v, a 2. Kinetics, is a study of forces cause the motion F, m, motion

  13. Review of Vectors and Scalars • A Vector quantity has both magnitude and direction • A Scalar quantity has magnitude only

  14. Scalars (e.g) distance speed mass temperature pure numbers time pressure area, volume charge energy Vectors (e.g.) displacement velocity acceleration force weight (force) momentum

  15. Vectors • Can be represented by an arrow (called the “vector”) • Length of the vector represents the magnitude of the quantity • Symbols for vectors: • (e.g. force) F ,or F (bold type) F 2 F

  16. Distance and Displacement • 8km = Distance • 3km = Displacement

  17. Distance total length of path travelled must be greater than (or equal to) magnitude of displacement only equal if path is straight symbol d Displacement direct distance shortest distance between two points distance between start and finish points “as the crow flies” can describe with only one direction symbol s s = xfinal - xinitial

  18. Average Speed and Average Velocity

  19. Review Are you going up or down? Are you speeding up or slowing down? a v What will your velocity be in 1 second?

  20. Review Are you going up or down? t=0 Are you speeding up or slowing down? v What will your velocity be in 1 second? a

  21. a Review Are you going up or down? t=1 Are you speeding up or slowing down? v What will your velocity be in 1 second?

  22. a Review Are you going up or down? t=2 Are you speeding up or slowing down? v What will your velocity be in 1 second?

  23. a Review Are you going up or down? t=3 Are you speeding up or slowing down? v What will your velocity be in 1 second?

  24. a Review Are you going up or down? t=4 Are you speeding up or slowing down? v What will your velocity be in 1 second?

  25. a Review Are you going up or down? t=5 Are you speeding up or slowing down? v What will your velocity be in 1 second?

  26. a Review Are you going up or down? t=6 Are you speeding up or slowing down? v What will your velocity be in 1 second?

  27. Bungee Jumping

  28. VelocityAcceleration VelocityAcceleration 1 5 2 6 3 7 4 bottom

  29. Thank you

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