MechOneSecE-2 Flashcards
1
Q
Gear Train Problem 1
A
define Values
Re idler is ignored
Convert Values
What is known?
What is required?
2
Q
Gear Train Problem 2
A
Draw Gear Train
Big is Driven(n)
Small is Driver(r)
Add arrows
3
Q
Gear Train Problem 3
A
Add nn , dn ,Tn
4
Q
Gear Train Problem 4
A
Add nr , dr ,Tr
5
Q
Gear Train Problem 5
A
Add Values
Write formula
VR = nr/nn or Tn/Tr or Tn/Tr=nr/nn
6
Q
Gear Train Problem 6
A
Rearrange formula for unknowns
Substitute Values
Solve
7
Q
Tr
A
Teeth Driver
8
Q
Tn
A
Teeth Driven
9
Q
Explain Wedge
A
Converts Force applied Blunt Side to Inclined Side
MA given by ratio Slope/Width
10
Q
Wedge Applications x 2
A
Axe
Door Stop
11
Q
Draw a Screwjack 1
A
Drop Load line
Add Arrow (Load)
Drop cylinder lines (Screw)
12
Q
Draw a Screwjack 2
A
Add nut to Base (Nut)
Angle out Legs
13
Q
Draw a Screwjack 3
A
Angle down Pitch lines (Pitch)
Attach Handle at Load line (Effort)
14
Q
Screwjack as a machine
A
Car Jack
15
Q
Draw a Wheel and axle
A
Draw Wheel(deffort) and Axle(dload) Add effortline(Preal) and Loadline(w) Add arrows
