6. : E : BATTERY AND MOTOR SIZING - P-division-2020-2021-even/Repo-05 GitHub Wiki
MOTOR SIZING
SERVO MOTOR
Number of Servo Motors used = 2
both have same working procedures
M = 300 g
M = 0.3 Kg
r = 3.5 Cm
μ = 0.6
contact surface (S) = 4
angle = 15°
factor of safety (F.S) = 1.5
F = M + M(sinθ + S * μ * cosθ)
F = 0.3 +0.3(sin(15°) + 4 * 0.6 * cos(15°))
F = 1.073 N
T = F * r * (F.S)
T = 1.073 * 3.5 * 1.5
T = 5.633 Kg-Cm
Torque produced by Servo Motor : 5.633 Kg-Cm
Suitable Servo Motor : Tower Pro SG-5010
BATTERY SIZING
BATTERY
| SL.NO | DEVICE NAME | WORKING VOLTAGE | CURRENT DRAWN |
|---|---|---|---|
| 1 | lcd display 16x2 | 5V | 200mA |
| 2 | Arduino Uno *2 | 5V | 200mA |
| 3 | Servo *2 | 5V | 1400mA |
| 4 | Rfdi/pir sensor | 5V | 40mA |
| 5 | Pizzo Buzzer | 5V | 30mA |
| Required supply | 5V | 1870mA |
|---|
FACTOR OF SAFETY = 1.2
| Safe Required supply | 5V | 2244mA |
|---|
WORKING HOUR = 1