UAMP subroutine(VUAMP subroutine) in ABAQUS
UAMP subroutine (VUAMP subroutine ) subroutine allows the user to define the current value of an amplitude definition as a function of different variables like time. This subroutine can be used to model control engineering aspects of the system when sensors are used (sensor values are from the beginning of the increment); It can also optionally compute the derivatives and integrals of the amplitude function. For example, it could be used by assuming that an electric motor provides the rotational input to the system, the intent is to shut off this motor (and complete the step) as the horizontal traveling head completes one full cycle.
“UAMP subroutine(VUAMP subroutine) in ABAQUS” package tries to teach how to write the subroutine by different practical examples step by step.