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Driven Wave Machine Model
written by Wolfgang Christian
The Driven Wave Machine model simulates a wave machine driven by a sinusoidal oscillator.  The machine consists of horizontal bars welded to a torsion rod that is perpendicular to the bars.  The simulation allows the user to change the number of bars, the drive frequency, and the boundary conditions.   The simulation also allows the user to change the lengths of the bars, thereby simulating the effect of a wave propagating in a non-uniform medium.

The Driven Wave Machine model is a supplemental simulation for the article "Standing Waves in a Nonuniform Medium" by Paul Gluck in The Physics Teacher 49(2), 76-77 (2011) and has been approved by the authors and The Physics Teacher editor.  The Driven Wave Machine model was created using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the ejs_mech_osc_chains_DrivenWaveMachine.jar file will run the program if Java is installed.

Please note that this resource requires at least version 1.5 of Java.
1 source code document is available
Subjects Levels Resource Types
Oscillations & Waves
- General
- Oscillations
= Coupled Oscillations
= Driven Mechanical Resonance
= Normal Modes
= Springs and Oscillators
- Wave Motion
= Impedance and Dispersion
= Standing Waves
= Transverse Pulses and Waves
- Lower Undergraduate
- Upper Undergraduate
- Instructional Material
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
  • Currently 5.0/5

Rated 5.0 stars by 2 people

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Access Rights:
Free access
This material is released under a GNU General Public License Version 3 license. Additional information is available.
Rights Holder:
Wolfgang Christian
coupled oscillator
Record Cloner:
Metadata instance created November 9, 2010 by Wolfgang Christian
Record Updated:
June 3, 2014 by Andreu Glasmann
Last Update
when Cataloged:
November 11, 2010
Other Collections:

for info, some error compiling in E:\EJS\EJS_4.3.7_120821\EJS_4.3.7

Author: lookang
Posted: August 28, 2012 at 9:58AM

for info. i can't find what is wrong, i cant find string "mustReinitialize"

File successfully read WaveMachineDriven.ejs
File saved successfully users/dav/wc/mech_osc_chains/WaveMachineDriven.ejs
Generating simulation file WaveMachineDriven...
E:\workspace\output\users\dav\wc\mech_osc_chains\WaveMachineDriven_pkg\ unreachable statement
      __mustReinitialize = true;
1 error
Compilation produced an error!

» reply

Re: for info, some error compiling in E:\EJS\EJS_4.3.7_120821\EJS_4.3.7

Author: Wolfgang
Posted: Aug 28, 2012 at 2:04PM

The EJS API for handling ODE errors has changed.  I have updated to source code to the new API.

» reply

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Record Link
AIP Format
W. Christian, Computer Program DRIVEN WAVE MACHINE MODEL, Version 1.0 (2010), WWW Document, (
W. Christian, Computer Program DRIVEN WAVE MACHINE MODEL, Version 1.0 (2010), <>.
APA Format
Christian, W. (2010). Driven Wave Machine Model (Version 1.0) [Computer software]. Retrieved July 28, 2017, from
Chicago Format
Christian, Wolfgang. "Driven Wave Machine Model." Version 1.0. (accessed 28 July 2017).
MLA Format
Christian, Wolfgang. Driven Wave Machine Model. Vers. 1.0. Computer software. 2010. Java 1.5. 28 July 2017 <>.
BibTeX Export Format
@misc{ Author = "Wolfgang Christian", Title = {Driven Wave Machine Model}, Month = {November}, Year = {2010} }
Refer Export Format

%A Wolfgang Christian
%T Driven Wave Machine Model
%D November 11, 2010
%O 1.0
%O application/java

EndNote Export Format

%0 Computer Program
%A Christian, Wolfgang
%D November 11, 2010
%T Driven Wave Machine Model
%7 1.0
%8 November 11, 2010

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Driven Wave Machine Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Driven Wave Machine Model.

relation by Wolfgang Christian

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