• Obtain the differential equation that relates $\omega_L$ to $v_s$ $v_s$ + R $T_m$ 2.42 Nm $b_m$ Torque (N-m) $v = 24v$ $T_m$, $\omega_m$ $I_m$ $n_1$ $b_L$ $\omega_L$ $n_2$ $I_L$ Speed (rad/s) 793.8 $I_m = 14.2 \times 10^{-6} kgm^2$ $b_m = 3.55 \times 10^{-6} Nms/rad$ $I_L = 7 \times 10^{-4} kgm^2$ $n_1 = 20$ $n_2 = 60$
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The motor has an inertia Im and a viscous friction coefficient bm. The motor is connected to a load with inertia IL and viscous friction coefficient bL through a gear train with gear ratios n1 and n2. Show more…
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At a given time t, a DC motor produces torque governed by the following equation: If the motor is coupled to a load which produces an opposing torque TL, the mechanical equation governing the motor load system can be written as: d^2Θ/dt^2 = Tm - TL + B(dΘ/dt) where Θ is the angular rotation of the motor, ω is the angular speed of the motor, B is the viscous friction coefficient, and I is the moment of inertia of the motor. Given that I = 0.1 kg m^2, B = 0.05 N.m s, and T = 50 Nm; use the Ralston method with a step size of 0.5s to calculate the angular rotation of the motor and its angular speed at time 2.0s. Assume that the motor starts with zero initial angular rotation and zero initial angular speed. (Answer: Θ(2.01) = 565.4534 and ω(2.01) = 457.2733)
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