Question

Question (DC servomotor): Ra La + ea(t) Armature windings ia J: Rotor Inertia (including effective load inertia) b: Bearing viscous friction coefficient ir: Constant field current for providing magnetic field (which could be generated by permanent magnets as well) eb: Back emf Input: ea(t) [applied armature driving voltage] Find for La ? 0: a) Motor Torque (T), in terms of ea(t) and ?(t) = ?(t). b) G?Ea(s) c) G?Ea(s)

          Question (DC servomotor):

Ra
La
+
ea(t)
Armature windings
ia
J: Rotor Inertia (including effective load inertia)
b: Bearing viscous friction coefficient
ir: Constant field current for providing magnetic field (which could be generated by
permanent magnets as well)
eb: Back emf
Input: ea(t) [applied armature driving voltage]
Find for La ? 0:
a) Motor Torque (T), in terms of ea(t) and ?(t) = ?(t).
b) G?Ea(s)
c) G?Ea(s)

Question (DC servomotor):

Ra
La
+
ea(t)
Armature windings
ia
J: Rotor Inertia (including effective load inertia)
b: Bearing viscous friction coefficient
ir: Constant field current for providing magnetic field (which could be generated by
permanent magnets as well)
eb: Back emf
Input: ea(t) [applied armature driving voltage]
Find for La ? 0:
a) Motor Torque (T), in terms of ea(t) and ?(t) = ?(t).
b) G?Ea(s)
c) G?Ea(s)

Added by Jose Angel B.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Timothy James

Step 1

First, let's find the back emf (eb) using the equation: eb = KE * ωm where KE is the back emf constant and ωm is the angular velocity of the motor. Show more…

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VM Ra 0000 L ea(t) Armature windings A mm ia I CP JRotor Inertia including effective load inertia bBearing viscous friction coefficient permanent magnets as well) eb:Back emf Input eat [applied armature driving voltage] Find for La0; aMotor Torque Tin terms of eat and t = tbGgEs cGEaS.