Question

Part a) What is the value if total inertia J? Can you sketch the waveform of the mechanical power Pm= Tm x. Wm ?

part b) What is the waveform of the required electromagnetic torque Tm? What is the waveform fo the mechanical power Pm?

Note: Please read the slides and then draw the waveforms answer complete for thumb up vote

Transcribed Image Text:

Angular Motion Motion equations dom dt dan J =T8-TL de JM <= TM-TS where is the torque produced by the motor, rs the shaft torque, n. the load torque Equivalent system Block Diagram dust dz where J = JM + J₁ is the total inertia = TM-7L Integrator -0-0 Example waveforms in no-load condition, 7, = 0 ► What is the value of the total inertia J? ► Can you sketch the waveform of the mechanical power PM = MM? Speed and load torque profiles are known ▸ What is the waveform of the required electromagnetic torque ™? ► What is the waveform of the mechanical power PM? (rad/s) 150 100 50 0- 7. (Nm) 20 10 The (Nm) 20 0- 10 TM 0 WM (rad/s) 100 50 0 -10 -20 Motor Rigid Load shaft -50 -100 3 Example: What is the Required Electromagnetic Torque? J₁ 5 DA Motor and load 4-85 SE 1 1 J₁ TIL 235 TL t(s) t(s) 9:22 10/22 t(s) t(s) Angular Motion Motion equations dom dt dan J =T8-TL de JM <= TM-TS where is the torque produced by the motor, rs the shaft torque, n. the load torque Equivalent system Block Diagram dust dz where J = JM + J₁ is the total inertia = TM-7L Integrator -0-0 Example waveforms in no-load condition, 7, = 0 ► What is the value of the total inertia J? ► Can you sketch the waveform of the mechanical power PM = MM? Speed and load torque profiles are known ▸ What is the waveform of the required electromagnetic torque ™? ► What is the waveform of the mechanical power PM? (rad/s) 150 100 50 0- 7. (Nm) 20 10 The (Nm) 20 0- 10 TM 0 WM (rad/s) 100 50 0 -10 -20 Motor Rigid Load shaft -50 -100 3 Example: What is the Required Electromagnetic Torque? J₁ 5 DA Motor and load 4-85 SE 1 1 J₁ TIL 235 TL t(s) t(s) 9:22 10/22 t(s) t(s)