Section 3: Systems

Question 1

Mechanical advantage

formula

Answer 1

MA = Load / effort
MA = output force/input force

Question 2

Gear ratio

formula

Answer 2

teeth on driven/teeth on driver
Gear ratio = driven/driver

Question 3

Velocity ratio

formula

Answer 3

Velocity ratio = diameter of driven pully/diameter of driver pulley

Question 4

Mechanical advantage

formula for pulley

Answer 4

MA = load/pulling force

Question 5

Hydraulic vs Pneumatic

Answer 5

Hydraulic: water/oil
Pneumatic: compressible gas, like air

Question 6

Pneumatics

Answer 6

• high speed
• accuracy/precision
  1. ideal for robotoic applications
  2. factory production line