WOLFRAM SYSTEMMODELER

StiffServoMechanism

A servo mechanism with a stiff axis

Diagram

Wolfram Language

In[1]:=
SystemModel["IntroductoryExamples.MultiDomain.StiffServoMechanism"]
Out[1]:=

Information

The structure of the control system is shown in the schematic picture below. It consists of an input signal, a sensor, a feedback loop, and a regulator. The physical system consists of the gear and axis system described in DC Motor and Weak Axis. Since the physical system has negative static gain the PI gain also has to be negative.

By varying the controller gain k we can study how the system response is affected. In this case we vary the gain from 1 (StiffServoMechanism 1) to 2 (StiffServoMechanism 5) in steps of 0.25. The plot below shows the result:

For a step by step tutorial see Multidomain—A Servo Mechanism.

Components (12)

idealGear1

Type: IdealGear

inertia1

Type: Inertia

inductor1

Type: Inductor

ground1

Type: Ground

inertia2

Type: Inertia

feedback1

Type: Feedback

speedSensor1

Type: SpeedSensor

signalVoltage1

Type: SignalVoltage

PI1

Type: PI

resistor1

Type: Resistor

EMF1

Type: EMF

step1

Type: Step