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Slider Crank Magnitude and Direction of Force on Member AB

  1. May 8, 2016 #1
    1. The problem statement, all variables and given/known data
    upload_2016-5-8_16-47-19.png

    2. Relevant equations

    3. The attempt at a solution
    https://scontent-lhr3-1.xx.fbcdn.net/v/t34.0-12/13140955_10156888508510486_863100825_n.jpg?oh=3f13a038f3dc053c7a10858aa62f6fc0&oe=57318819
    https://scontent-lhr3-1.xx.fbcdn.net/v/l/t34.0-12/13181169_10156888508285486_1714571561_n.jpg?oh=028cbf27852711807f4b5124b1057ca5&oe=57316F20
     
  2. jcsd
  3. May 13, 2016 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
     
  4. May 14, 2016 #3
    The acceleration diagram gives you the acceleration of the various bits. You also have the masses. The rest is trig. For example, the piston is accelerating in a straight line. Because the connecting rod is at an angle to the direction of piston travel there is a force component perpendicular to the direction of piston travel and another along the direction of piston travel. Those forces act on A in the direction along the connecting rod.
     
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