9. Motor Sizing and Battery Sizing - O-Division-2020-2021-Even/Repo-4 GitHub Wiki
9.1 Motor Sizing:
For our Course Project, we require 2 Motors: 1 in the Crushing unit & 1 in Dispensing unit.
Formula to calculate Torque:
T= MgD/2
(where M = mass, g = acceleration due to gravity, D = diameter)
1. For the Crushing unit.
M = 400gm = 0.4kg
g = 10 m/s/s.
D = 42mm = 4.2cm
T= MgD/2 = (0.4 x 10 x 4.2)/2 = 8.4 kg-cm.
A 10 rpm motor is required for the Crushing unit.
2. For Dispensing unit.
M = 400gm = 0.4kg
g = 10 m/s/s.
D = 42mm = 4.2cm
T= MgD/2 = (0.4 x 10 x 4.2)/2 = 8.4 kg-cm.
A 10 rpm motor is required for Dispensing unit.
9.2 Adapter Sizing:
For our Course Project, Power Supply is done through Adapters
9.2.1 Components Used:
| Sl No | Componets | Capacity | Quantity | Total Capacity |
|---|---|---|---|---|
| 1 | Arduino Uno | 5V, 100mA | 1 | 100mA |
| 2 | DC motor | 12V, 300mA | 2 | 600mA |
| 3 | LED | 5V, 30mA | 1 | 30mA |
| 4 | Ultrasonic Sensor | 5V, 5mA | 2 | 10 mA |
9.2.2 Total Rating:
| Voltage Rating | Current Rating |
|---|---|
| 12v | 600mA or 0.6A |
| 5v | 140mA or 0.14A |
Applying Factor of Safety(FOS):
FOS=1.2
| Voltage Rating | Current Rating |
|---|---|
| 12v | 720mA or 0.72A |
| 5v | 168mA |
For our course project, We will be using 2 Adapters:
Adapter 1: 12V, 1A.
Adapter 2: 5V, 1A.