Seat Suspension: Damper Comparison

Introduction

This model compares the response of a simple passive damper with that of a hybrid semi-active damper over a range of frequencies corresponding to an application in a truck seat suspension system. The model is constructed from components in the Modelica.Mechanics.Translational library. The Wolfram Language is used to estimate and visualize the amplitude frequency response curve.

View the model diagram for this model.

In order to get the full experience of this example, you need the following:

• A desktop Wolfram Language product; a free trial download is available at www.wolfram.com/mathematica/trial/
• The SeatSuspension.nb notebook that came in the same bundle as this model

This model is based on B. A. Reichert, Jr., "Application of Magnetorheological Dampers for Vehicle Seat Suspensions," M.S. thesis, Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 1997.

Numerical Experimentation

Simulate the model from the Wolfram Langauge to compare the performance of a simple passive damper with a hybrid semi-active damper over a range of frequencies:

Analysis & Custom Visualization

Use the Wolfram Language to numerically estimate the amplitude response as a function of frequency and produce a custom visualization:

Terms and Conditions of Use