Practical high-fidelity frequency-domain force and location identification

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dc.citation.firstpage30en_US
dc.citation.journalTitleComputers & Structuresen_US
dc.citation.lastpage41en_US
dc.citation.volumeNumber158en_US
dc.contributor.authorGhaderi, Pooyaen_US
dc.contributor.authorDick, Andrew J.en_US
dc.contributor.authorFoley, Jason R.en_US
dc.contributor.authorFalbo, Gregoryen_US
dc.date.accessioned2015-09-24T18:13:01Zen_US
dc.date.available2015-09-24T18:13:01Zen_US
dc.date.issued2015en_US
dc.description.abstractIdentifying the force information and location of an impact event is important for predicting and/or monitoring potential damage to the structures. Directly measuring the impact event and/or locating the impact force is not always possible due to the nature of the impact or the structure. In this work, a new force and location identification method is introduced which utilizes a spectral finite element method (SFEM) model of the structure. The identification technique is demonstrated and studied through its application to beam structures in order to identify impulsive loads. Wave propagation data collected with accelerometers placed on the structure are used in order to determine the impact information. When the impact force is applied between the accelerometers, the calculated force is distributed over the two accelerometer positions on either side of the impact location. The location identification process uses the distribution of the identified force information in order to locate the impact position. This method is performed by matching simulated data to the identified force data by tuning the impact location within the numerical model. When a sufficient level of agreement is achieved, the impact location is determined. In order to validate the results of the numerical studies, identified impact forces and locations are calculated for experimental data and good agreement is observed with the measured force information and impact locations.en_US
dc.identifier.citationGhaderi, Pooya, Dick, Andrew J., Foley, Jason R., et al.. "Practical high-fidelity frequency-domain force and location identification." <i>Computers & Structures,</i> 158, (2015) Elsevier: 30-41. http://dx.doi.org/10.1016/j.compstruc.2015.05.028.en_US
dc.identifier.doihttp://dx.doi.org/10.1016/j.compstruc.2015.05.028en_US
dc.identifier.urihttps://hdl.handle.net/1911/81718en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier.en_US
dc.subject.keywordforce identificationen_US
dc.subject.keywordforce localizationen_US
dc.subject.keywordimpact responseen_US
dc.subject.keywordspectral finite element methoden_US
dc.titlePractical high-fidelity frequency-domain force and location identificationen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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