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Measuring Mass Moment of Inertia with a Bifilar Pendulum

06 Aug 2007 (Updated 06 Oct 2009)

Code covered by the BSD License

A Simulink® model of a bifilar pendulum for measuring mass moment of inertia.

File Information
Description	The bifilar pendulum is a torsional pendulum that can be used to experimentally measure the mass moment of inertia of a test object. A typical application is to measure mass moment of inertia of aircraft, especially small unmanned air vehicles (UAV). This model corresponds to the one discussed in the following article: Jardin, M., Mueller, E., "Optimized Measurements of Unmanned Air Vehicle Mass Moment of Inertia with a Bifilar Pendulum," Journal of Aircraft, Vol. 46, No. 3, May-June 2009, pp. 763-775. This paper was also presented at the AIAA GNC Conference in 2007: Jardin, M., Mueller, E., "Optimized Measurements of UAV Mass Moment of Inertia with a Bifilar Pendulum," AIAA-2007-6822, AIAA GNC Conference, Hilton Head, SC, Aug. 20-23, 2007.
Required Products	Simulink Simulink Design Optimization
MATLAB release	MATLAB 7.8 (R2009a)
Other requirements	The BP_example.mdl model can be simulated with just a Simulink license. In order to run the parameter estimation tasks, you will need a license for Simulink Design Optimization.
Zip File Content
Other Files	BifilarPendulumRelease3.0/BP_equation.jpg, BifilarPendulumRelease3.0/BP_example.mdl, BifilarPendulumRelease3.0/BP_exampleData.mat, BifilarPendulumRelease3.0/BP_exampleEstPrj.mat, BifilarPendulumRelease3.0/BP_exampleParams.m, BifilarPendulumRelease3.0/BP_exampleTestObjParams.mat, BifilarPendulumRelease3.0/inertiaexperimentcartoon_b.JPG, license.txt

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Everyone's Tags	moment of inertia uav bifilar pendulum parameter estimation, simulation
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Comments and Ratings (1)
29 Oct 2007	Arizal Akbar Zikri

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Updates
13 Aug 2007	Updated AIAA paper number in the Description.
24 Mar 2008	Added the words "parameter estimation" to the keywords list so that anyone looking for examples using Simulink Parameter Estimation will find this submission.
14 Apr 2009	Model has been updated for Release R2009a. Simulink Parameter Estimation tasks have been included.
13 Jul 2009	Updated reference to more recent journal article.
06 Oct 2009	Added copyright statement to BP_exampleParams.m

Tag Activity for this File
Tag	Applied By	Date/Time
simulation	Matt Jardin	22 Oct 2008 09:22:21
moment of inertia uav bifilar pendulum parameter estimation	Matt Jardin	22 Oct 2008 09:22:21

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