Lecture2a(1)

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Lecture2a(1)

  1. 1. Today: - Mechanical Systems - Free Body Diagrams Book: Chapter 5.1 - 5.2
  2. 2. Recap: Static equilibrium of a body In general:
  3. 3. Two- and three-force members
  4. 4. Free-body diagram A diagrammatic representation of the isolated system treated as a single body.
  5. 5. Support reactions 1. If a support allows motion in a certain direction (degree- of-freedom) then it provides no reaction force in that direction 2. Conversely, if a support constrains motion in a certain direction, a reaction could be present in that direction
  6. 6. Blimp Wind direction
  7. 7. Blimp Wind direction
  8. 8. Skate on ice
  9. 9. Shoe on a surface
  10. 10. Rollerblades on the road
  11. 11. Landing gear attached to a fuselage
  12. 12. Wing attached to a fuselage
  13. 13. Do not forget the gravitational attraction!
  14. 14. Springs – pogo stick
  15. 15. Complete the Free-Body Diagram
  16. 16. Complete the Free-Body Diagram
  17. 17. Complete the Free-Body Diagram
  18. 18. Complete the Free-Body Diagram
  19. 19. Complete or correct the Free-Body Diagram
  20. 20. Complete or correct the Free-Body Diagram
  21. 21. Complete or correct the Free-Body Diagram

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