want to build a robot for robo-war with four wheels . i am using four motors . the wheel diameter is 5 inches . i want the robot have a velocity of .5 m/s with an acceleration of .5m/s square . robot weight is 20 kg . what should be the power and RPM of my four motors used ??? if anyone can tell me the method it will be great Please Register or Log in to view the hidden image! Please Register or Log in to view the hidden image!
ok this is what i have been able to do so far . as v=.5 m/s , t= 1 s and radius of tire = 3 inch so , angular velocity = v/r . angular acceleration=angular velocity/time and I = 1/2 m r square . where r is radius of wheel and m = 20 kg so now torque=I * angular acceleration and finally P = I * angular acceleration Is this correct anyone ??
74RPM. Power has almost nothing to do with the acceleration; most of the power goes to overcoming friction, driving the wheels over carpet, climbing tile edges etc. What you want is torque. 200 ounce-inches would allow you to climb almost anything. 50 ounce-inches is about the lowest you want to go.
