MOTOR AND ADAPTER SIZING - A-Division-2023-24-Odd/Repo-03 GitHub Wiki

MOTOR SIZING:-

1.Linkage.

Dimension:-

Length = 30cm

Breadth = 0.5cm

Height = 2cm

Volume(1) = LengthBreadthHeight = 30 cubic centimeters = 30*10^-6cubic meter

2.Piston

Length = 6cm

Breadth = 8cm

Height = 7.5cm

Volume(2) = LengthBreadthHeight = 360 cubic centimeters = 360*10^-6cubic meter

3.Worm Gear A

No of teeth= 5

4.Worm Gear B

No of teeth= 38

Volume = Volume(1) + Volume(2) = 36010^-6 + 3010^-6 = 390*10^-6 cubic meter

Mass,m = rhovolume

rho = 1180 kgm^-3

m = 1180*390*10^(-6) = 460200*10^-6 = 0.4602kg

Force

F = mum*g

mu = 0.4

g = 9.81m/s^2

F = 0.60*0.4602*9.81 = ~2.71N

Torque

T = η(zₑ/zₐ)Ta

η = 0.3

Ta = 4.8

T = 20.52 kgcm

Safety factor = 1.5

T = 20.52*1.5 = 30.78 kgcm

Therefore,the size of DC motor required is 1000 rpm.

ADAPTER SIZING:-

We require 1 DC motor

therefore, 4A @ 24V

(100+80+4)ma = 184mA @ 5V

Safety factor = 1.2

therefore, = 4.8A @ 24V , 284mA@ 5V

Therefore adapter of 4.8A and 24V and 1A and 5V is required.