8.Motor sizing and Battery sizing - O-Division-2020-2021-Even/Repo-5 GitHub Wiki

Motor sizing and Battery sizing

  1. Battery sizing:

-> DC motor: 12V, 2amp required.

-> Arduino uno: 9V 1A required.

-> PIR sensor: 5V 1A required.

2.Motor sizing:

->Mass of the body(m)=0.5kg

diameter(d)=0.06m

g=9.8m\s2

coefficient of friction u=0.5

f=m*g

=0.5*9.8

=4.9N

considering friction

f=mgu

=4.9*0.5

=2.45N

Torque(T)=f*d/2 kgm2/s2

     =2.45*0.06/2

     =0.0735

     = 0.0735 Nm

motor required: 10rpm

Capture

Battery Sizing

Sl no components capacity Quantity Total capacity
1 Arduino uno 9V, 1A 1 1A
2 DC motor 12V, 2A 1 2A
3 PIR sensor 5V, 1A 1 1A
4 LCD 5V,1A 1 1A

Total Rating:

Voltage Rating Current Rating
12V 2A
5V 2A
9V 1A

Applying Factor of Safety(FOS):

FOS=1.2

Voltage Rating Current Rating
12V 2.4A
5V 2.4A
9V 1.2A

For our course project, We will be using 3 Adapters:

Adapter 1: 12V, 2A

Adapter 2: 5V, 1A

Adapter 3: 9V, 1A