what type of motor should i use based on these calculations and what is the power rating of the motor .How much power supply do i need to operate the motor if i want to use a solar panel as the power supply.
Given: Diameter of the railing, D
=1.3m,
Parameter
of the railing, P= pi x 1.3m=4.084 m,
Diameter of the
gear attached on motor, d = 0.02m,
Distance
travel for 1 rev of motor = pi x 0.02m = 0.06283m
Since the canvas cover must
covered the railing under 5 seconds. It means 1 second the
canvas cover must travel =(4.084m/5)=0.8168m
The speed of motor needed to turn
in order to closed the canvas cover under 5 seconds,
Revolution per second = 0.8168/0.06283 = 13
RPM = 13 x 60 = 780
Torque, T = Fr
=14.7 x 0.01m
=0.147 Nm
Power of the motor, P = Tw
=0.147x780x(2pi/60)
=0.147
W