Day 18 - Pascal Review
Today I need you to complete Worksheet D and then get back to work on your hydraulic arm builds. Your performance on Worksheet B indicated that there is still a lot of confusion for how to solve these problems, so I will be coming around to provide specific guidance as you work through them. Answer these questions correctly (showing all the required work) so that when I grade them for accuracy you can get an easy A. The required work includes:
- write out any formula you are using
- use algebra to rearrange that formula to isolate the variable for which you will be solving
- replace the letters of the formula with the values given in the problem
- include all relevant units - numbers without units is math, not engineering!
- draw a box around your final answer
Without that work, you cannot get a passing grade on this assignment. Please note that we are scheduled to pit these arms against one another in competition for a grade in our next class, so complete your assemblies today!
Hydraulic calculations
- calculate the area of a circle (Acircle = πr2).
- calcuate the mechanical advantage of a system (M.A. = Fout/Fin)
- know that in general, output distance traveled must be multiplied by M.A. of the system to know input distance traveled
- calculate the volume of a cylinder (Vcylinder = πr2h)
- calculate the radius of a circle given its diameter (r = d/2, or d = 2r)
- know that in general, M.A. = Fout/Fin = Aout/Ain = Δhin/Δhout
- hydraulics
- the branch of engineering concerned with the conveyance of liquids through pipes and channels, especially as a source of mechanical force or control.
