Dante Development Corporation is considering bidding on a contract for a new office building complex. Figure 4.17 shows the decision tree prepared by one of Dante’s analysts. At node 1,….
calculate the torque that is needed to accelerate the arm at the rate of θ = 500 rad/s 2 for a) N = 1, b) N = 10, c) N = 100.
A motor with rotor inertia of 0.05 kgm2 is connected to a load with a moment of inertia of 1.5 kgm2 through a pair of gears with a ratio of N. Ignoring the inertia of a pair of reduction gears and viscous friction in the system, calculate the torque that is needed to accelerate the arm at the rate of θ = 500 rad/s 2 for a) N = 1, b) N = 10, c) N = 100. Estimate how much the torque/inertia ratio of a disk motor might be if it can go from zero to 2000 rpm in one millisecond, and compare it to the motor in Problem 1. Using a timer circuit, design a pulse-generating circuit that delivers a range of 100–400 pulses per second to a stepper motor driver.