WOLFRAM SYSTEM MODELER
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.
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In order to get the full experience of this example, you need the following:
These pages show an overview of the example. For the full example, open the accompanying notebook SeatSuspension.nb.
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.
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:
Use the Wolfram Language to numerically estimate the amplitude response as a function of frequency and produce a custom visualization:
This domain example is an informational resource made freely available by Wolfram Research.
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The full legal code can be found at:
Description: Passively damped spring.
Description: Passive damper.
Description: Passively damped mass.
Description: Actively damped mass.
Description: Actively damped spring.
Description: Position of passively damped spring.
Description: Position of actively damped spring.
Description: Semi-active damper.
Description: Input signal.