Tutorial #2 MECH 390

Voltage (V) Current(A) Speed (rpm) Speed (rad/s) Force(g) Force(N)0 0 0 0 0 0

0.9 0.25 9642 1009.71 0.8 0.007851.41 0.5 13966 1462.52 1.3 0.01275

1.9 0.75 17000 1780.24 5.54 0.054332.2 1 19384 2029.89 5.5 0.053942.7 1.5 23127 2421.85 7.9 0.07747

3 2 24196 2533.80 9.61 0.094243.4 2.5 26662 2792.04 11.61 0.11386

Length of propeller 25cm0.25m

0.00 0.50 1.00 1.50 2.00 2.50 3.000.00000

0.00500

0.01000

0.01500

0.02000

0.02500

0.03000

Torque Vs Current

Current (A)

Torq

ue (N

m)

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.000

5000

10000

15000

20000

25000

30000

Speed Vs Voltage

Voltage (V)

Spee

d (r

pm)

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.000

5000

10000

15000

20000

25000

30000

Speed Vs Voltage

Voltage (V)

Spee

d (r

pm)

Torque (g*m) Torque (N*m) Input Power(W) Output Power (W) Efficiency0 0 0 0 0

0.200 0.00196 0.225 1.98 8.801646020.325 0.00319 0.705 4.66 6.611737081.385 0.01358 1.425 24.18 16.96809641.375 0.01348 2.200 27.37 12.44149911.975 0.01937 4.050 46.91 11.58192292.403 0.02356 6.000 59.70 9.949586122.903 0.02846 8.500 79.47 9.34964928

Average Eff. 9.46

0.00 0.50 1.00 1.50 2.00 2.50 3.000.00000

0.00500

0.01000

0.01500

0.02000

0.02500

0.03000

Torque Vs Current

Current (A)

Torq

ue (N

m)

0.00 0.50 1.00 1.50 2.00 2.50 3.000

5000

10000

15000

20000

25000

30000

Speed Vs Current

Current (A)

Spee

d (r

pm)

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.000

5000

10000

15000

20000

25000

30000

Speed Vs Voltage

Voltage (V)

Spee

d (r

pm)

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.000

5000

10000

15000

20000

25000

30000

Speed Vs Voltage

Voltage (V)

Spee

d (r

pm)

0.00 0.50 1.00 1.50 2.00 2.50 3.000

5000

10000

15000

20000

25000

30000

Speed Vs Current

Current (A)

Spee

d (r

pm)