Free Body Diagram for Chains

  • Thread starter jhson114
  • Start date
  • #1
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hello. I need help drawing free body diagram for four links on a chain. The picture looks like this:

| <-thats a rope
8 <-these are links; they should all be connected
8

heres a good picture of a chain:
http://homepage.mac.com/kpreid/povray/chain.png [Broken]

the first link is connected by a rope, and i need to draw FBD for each links.
For the first link, i have Tension force from the rope, Weight force, and Normal force from link two. Is this correct? how would you show all other weights pulling link 1 beyond the link 2? and is it even correct to call the force link two is applying to link 1 a normal force?
help please. thank you
 
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Answers and Replies

  • #2
82
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help please T.T
 
  • #3
119
2
free body diagram

Each link of the rope is uder the influence of just three forces. Two normal forces - from the top link and the bottom link and one of gravity.

You need not consider the influence that links other than link 2 are applying on link 1. Because if there is such an influence, it is just through link 2 and no other direct influence.

rest is correct

spacetime
www.geocities.com/physics_all/index.html
 
  • #4
82
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thanks alot for the help :)
 

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