Started thinking about scissor lifts and how the trig works for these devices. In this problem we have a scissor lift that cross bar is 2.48 units long. It has an initial height of .74 units we want to find out home much we must reduce the scissor lifts span at the base to reach a height of 2.1 units.
So how do we go about this? Hint here is the Pythagorean theorem which is A square plus B square equals C squared.
Ok so the way I solved this one is by making 2 right triangles an placing them in the scissor lift so that the 2 heights combined make the total height of the scissor lift. The number of triangles will be dictated based off of how many linkages you have on your scissor lift. We notice that each of these triangles height is half the height of the scissor lift which is .37 and 1.05
We then can use the rearrange pythagoreon theorem which is square root of c squared minus b squared equals a side length or the pan distance at the base. Plugging in our numbers we get 2.45 for initial span and 2.24 for final span
Subtracting one from the other we get that we need to reduce the span by .21 units to reach the desired height of 2.1 units.
Disclaimer These videos are intended for educational purposes only (students trying to pass a class) If you design or build something based off of these videos you do so at your own risk. I am not a professional engineer and this should not be considered engineering advice. Consult an engineer if you feel you may put someone at risk.
Негізгі бет Scissor Lift Trigonometry Problem. For Given Desired Height Find Reduction of Span at Base Needed
Пікірлер