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dc.rights.licenseRestricted to current Rensselaer faculty, staff and students. Access inquiries may be directed to the Rensselaer Libraries.
dc.contributorXiang, Ning
dc.contributorBraasch, Jonas
dc.contributorMarkov, Ivan
dc.contributor.authorWhitney, Matthew
dc.date.accessioned2021-11-03T09:10:40Z
dc.date.available2021-11-03T09:10:40Z
dc.date.created2020-04-30T11:43:08Z
dc.date.issued2015-08
dc.identifier.urihttps://hdl.handle.net/20.500.13015/2417
dc.descriptionAugust 2015
dc.descriptionSchool of Architecture
dc.description.abstractThis project seeks to characterize the dynamic material properties of a cross-linked, nanoscale, polyurea aerogel utilizing a new transfer function method. This method is able to determine the dynamic properties over a wide frequency range using impulse responses gathered from the top and bottom of the material by both accelerometers and a laser Doppler vibrometer. The dynamic material properties that can be calculated using this method include Young's modulus, density, and the speed of sound in the material. Different mounting systems for the shaker and the effect of test sample surface area and thickness will be examined. A method for using two different thicknesses of aerogel to resolve the material's dynamic stiffness was discovered. The advantages and disadvantages of using a laser Doppler vibrometer instead of an accelerometer will be studied. The data found that using smaller, circular plates and directly mounting the shaker to a marble floor resulted in the widest usable frequency range. A very low speed of sound was found for the material and confirmed using data from transmission loss measurements.
dc.language.isoENG
dc.publisherRensselaer Polytechnic Institute, Troy, NY
dc.relation.ispartofRensselaer Theses and Dissertations Online Collection
dc.subjectArchitectural sciences
dc.titleDynamic property characterization of polyurea aerogel materials using a laser Doppler vibrometer
dc.typeElectronic thesis
dc.typeThesis
dc.digitool.pid179717
dc.digitool.pid179718
dc.digitool.pid179719
dc.rights.holderThis electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
dc.description.degreeMS
dc.relation.departmentSchool of Architecture


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