Tension adjustment
this is going to sound like a dumb question but I'm having trouble figuring out the practical solution to the following problem:
I have a stressed cable fixed at one end and attached to a crank at the other. The cable has a linear density L, is at tension T, is length K and I want to increase tension to rT. The cable passes through a fixed node as it exits the crank. Can I calculate how many radians I need to crank based on radius (assume fixed)? My missing link here is how to calculate in advance, rather than "tighten until tension reaches rT," e.g.
I have a stressed cable fixed at one end and attached to a crank at the other. The cable has a linear density L, is at tension T, is length K and I want to increase tension to rT. The cable passes through a fixed node as it exits the crank. Can I calculate how many radians I need to crank based on radius (assume fixed)? My missing link here is how to calculate in advance, rather than "tighten until tension reaches rT," e.g.
Replies
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zaveriYou need to provide a free-body diagram, to express the problem even clearly.
because if the crank turns, then the orientation of the cable changes as well.
why don't you post some free-body diagrams showing the initial position of the crank and the cable and the fixed end.
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