3 Rotating antenna I.=0.8lbfis? Gear Box 10:1>N=10 6(t=1sec)=180=元rad Find motor voltage Start up Torque Problem 1)Find required load acceleration 0-受f (from rest) 26(t a= 2 =2xad/s ,=F au=Na:=10*2x=20xrad/s 2)Find inertia I=1_(negligable)+- _08bt-0.08bt2 100 3)Find startup torque T=I*a=0.008lbfis**20xrad/s =0.5bf=965moz 4)Find voltage T.=96.Sim-0z 0=0 Startup speed is zero 500 400 10V 300 -12V 200 15V 5V 100 50 100150 T=96.5 Torque (in.·oz) w- 0.5 1.0 Torque(N·m) V is about 10 voltage