7.Motor Sizing And Adapter Selection - Q-Div-2022-2023-Odd/Repo-6 GitHub Wiki
Collector motor sizing and selection
m=rho*v
foam sheet outer
v=l*b*h
=0.06912*0.025*0.05
=0.000864 m^3
foam sheet inner
v=l*b*h
=0.04398*0.025*0.05
v=0.000549 m^3
separators
v=l*b*h
=0.025*0.040*0.05
v=0.0005*4
v=0.0002
Foam sheet
v=pi*r*r*h
=pi*0.110*0.110*0.05
=0.0019 m^3
Mass of foam sheet
m=1.18*10^3*(0.000864+0.000549)
=1.18*10^3*14.13*10^-4
=16.67*10^-1
m=1.667kg
Mass of foam sheet
m=0.9*1.9*10^-3+3
m=1.71kg
total m=1.667+1.71kg
total m=3.377kg
F=mg=3.377*9.8=33.09N
T=Fr=33.090.110=3.64kg/m
therefore RPM=30
model name=12v low noise DC motor with metal gear
GradeA
Adapter Selection:
3 DC motors are used for with 60 RPM each
3*30=90 mA
factor of safety=1.2 90*1.2=108 mA
hence the adapter is 12v and 1A