1. fundamental torque equation - Jan 21st Fundamental torque equation Motor drives a load through a transmission system Motor always rotate load may

# 1. fundamental torque equation - Jan 21st Fundamental...

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Jan 21st
Fundamental torque equation Motor drives a load through a transmission system. Motor always rotate, load may rotate or undergo a translational motion. Load speed may be different from that of motor.
The basic equation of the motor-load system is L T T ) ( J dt d dt dJ dt d J ) ( Drives with constant inertia, (dJ/dt)=0 Industrial robots-variable inertia Fundamental torque equation ) ( dt d J T T L
where T and T L is motor and load torque respectively in N- m, J is the moment of inertia and ω is the angular velocity in rad/sec. Motor torque is the applied torque and load torque is the resisting torque. Different states at which an electric drive causing rotational motion are (i) T > T L (d ω /dt >0) :- The drive will be accelerating, in particular, picking up speed to reach rated speed. Dynamic torque and it is present only during transient operations
(ii) T M < T L (d ω /dt <0) :- The drive will be decelerating and particularly, coming to rest. (iii) T M =T L (d ω /dt =0