Python for Controls, System Dynamics, and Mechatronics

A Python Module for System Dynamics and Controls

Examples for ME 356 System Dynamics

An Introduction to Python for Control, System Dynamics, and Mechatronics

Bode Plot Generation

Step Response and Swept Sine Response of a First Order System

Introduction to step responses and system identification.





Fourier Analysis

Determine expressions for y(t) based on taking the FFT of the data. Data is tab delimited in 2 columns - t and y(t). Verify your expression for y(t) by plotting your expression over top of the data from the file.



Be sure to clearly label your plots and submit your code.





System Modeling/Identification Homework

Here is a module I am working to make it easier for my students to use Python in my "System Dynamics" and "Feedback Control" courses:If you do not have authority to install one of the above files, you can place this file in your current working directory or any directory in your PYTHONPATH:These are some Python files I put together to help my mechatronics students use Python for modeling dynamic systems. Feel free to use them however you please. If you add to them, please email me your improvements.This is a basic demo of how to generate a Bode plot from a transfer function, using a lowpass RC filter as an example.Basic Fourier analysis example:A Fourier homework assignment: fourier_hw1.txt (data file 1) fourier_hw2.txt (data file 2)Example of how to read data from text files:Plot the step responses and swept sine responses vs. time from the data files. Find the transfer function for each system by taking the fft of the sweptsine data (generate Bode plots). Taking the step response and Bode plot together for each system, estimate the parameters for each system (come up with a transfer function model with known coefficients).Verify your transfer functions by overlaying Bode plots from your model and the data.