Recent content by brout
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High School Solving the Puzzle: Calculating a Car's Speed
Just find this out ... with a bit of luck :) ... 16 / 61 / 106 => 45mph- brout
- Post #8
- Forum: General Math
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How Can I Ensure Constant Tension on a Bobbin with an Electric Motor?
well.. there's no real precision about the tension.. only that it also have to be reglable, so it might have to be wound tightly i presume. As far as I've understand my problem :) I need something that regulates itself, like something disconnecting when it is forcing too much.. but it's quite...- brout
- Post #5
- Forum: Mechanical Engineering
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How Can I Ensure Constant Tension on a Bobbin with an Electric Motor?
Thx for the information... just to be clearer i'll try to explain the problem more precisely. So, as you guessed, i meant that a constant rotating speed (instead of vitess :S) is provided by the motor. But the wire arrives from an extrusion machine with a certain speed (maybe not constant)...- brout
- Post #3
- Forum: Mechanical Engineering
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How Can I Ensure Constant Tension on a Bobbin with an Electric Motor?
Here's my main problem to concieve a bobbin machine... I've got an electrical motor which provides a constant rotating vitess.. and i want, in the end, to make the bobbin rotating and assuring a constant tension on the wire. If you have any idea of a simple mechanical system to do that...- brout
- Thread
- Machine
- Replies: 4
- Forum: Mechanical Engineering
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Undergrad Find Derivative of y=2^x Using Definition
"The derivative is lim (f(x+h)- f(x))/h= axlim {(ah-1)/h}. Notice that that is ax time a limit that is independent of x. That is, as long as the derivative exists, it is ax times a constant. The problem is showing that the lim{(ah-1)/h} EXISTS! And then showing that, if a= 2, that limit is...- brout
- Post #8
- Forum: Differential Equations