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Forums
Engineering
Mechanical Engineering
Calculating if a Pipe Clamp will slip
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[QUOTE="Merlin3189, post: 6103891, member: 542077"] I find your calculations a bit confusing. You seem to find the axial tension in the bolt (or bolts ?) to be 800 lb force. I haven't checked this. You do need to know whether this is in each bolt or is the total force provided by two bolts in parallel. Then you calculate (I think) the needed clamping torque of the clamp on rod 2, by equating it to the torque applied by a 50 lb force on rod 1. I haven't checked this either, because your calculation is in inches, when the diagram dimensions are in mm. I don't know where the 50 lb force on rod 1 is obtained from. It's not marked on the diagram nor stated in the problem description. I hope you're not getting confused with the "50 psi" torque applied to the bolts? (Which should be 50 lb inches or some such.) On your diagram you state,"Min lifting force 90 lb (178 N) required". Neither value appears in your calculation and you should note that 90 lb force ≠ 178 N, so which is the min required? On the other hand the angle between input and output torques does not matter, UNLESS the forces applied are not perpendicular to the arms. Perhaps you can clarify the problem. And maybe make what you are calculating, with what values, obtained from where, a bit clearer. [/QUOTE]
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Calculating if a Pipe Clamp will slip
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