Equations Flashcards
What’s the velocity ratio from using the diameter of the pulleys equation?
Velocity ratio = Diameter of driven pulley / Diameter of driver pulley
What is the velocity ratio from using the torque equation?
Velocity ratio = output torque / input torque
What is the velocity ratio from using the speed equation?
Velocity ratio = input speed / output speed
What is the mechanical advantage equation?
Mechanical advantage = output force or load / input force or load
What is the velocity ratio from using leverage equation?
Velocity ratio = distance moved my effort / distance moved by load
What is the efficiency equation?
Efficiency = output work or power / input work or power x 100%
What is the voltage equation?
Voltage = current x resistor
What is the torque equation in gears?
Torque = force x length
The equation for total resistance in a series circuit
R(total) = R(1) + R(2) + …
The equation for finding displacement in a cam
Maximum length - minimum length
The equation for the velocity ratio of a wheel & axle
Velocity ratio = diameter of the wheel/diameter of the axle
(The pi value cancels out)
The mechanical advantage of a wheel & axle
MA = diameter of wheel/diameter of axle
The equation for torque in gears
Torque(NM) = Force(N) x Lengths(M)
Velocity Ratio for gears
Velocity Ratio = driven no. Of teeth/driver no. Of teeth
Or
Velocity Ratio = input speed/output speed
