Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Ambient Vibration Testing"”.
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Ambient vibration testing of concrete dams
… analysis (CVA)) have been applied to data from ambient vibration testing of two concrete dams namely; Roode Elsberg and Kouga dams.
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Estimation of Cable Forces at the Ashton Bridge through Ambient Vibration Testing
… of the structure. Superstructure and cable vibration data was collected on site after the final stage of cable tensioning. Finite element models of each cable were created using the software, Sofistik. Thereafter, the force in the cable models was iterated until the theoretical natural …
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Calibration of an arch dam model by the finite element method using ambient vibration testing
… were extracted from the structure using ambient vibration testing techniques. Besides the geometry and general material properties of the dam wall concrete and foundation rock, the measured frequencies and mode shapes depend on the conditions at the dam site namely water level, …
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Dynamic Testing of an Elevated Water Tank
… components consisted of characterizing the vibration of the elevated water tank in its current environment through ambient vibration testing. </p>
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A Comparison and Evaluation of Different Dynamic Characterization Approaches for Bridges
… of the structures, while keeping testing efforts at a minimum. The three dynamic field test included Operational Modal Analysis, or ambient vibration testing, and controlled input vibration testing using an instrumented impact hammer and an electro-dynamic mass shaker. The two …
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Identification of Physical Changes to a Steel Frame
The thesis utilized physical testing and computer modeling to determine the feasibility of identifying a change to the mass or stiffness of a steel frame. Physical testing was performed using an accelerometer, linear shaker, and arbitrary function generator. Two methods of laboratory testing were …
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Forced Vibration Testing and Analysis of Pre- and Post- Retrofit Buildings
<p>ABSTRACT</p> <p>Forced Vibration Testing and Analysis of Pre- and Post- Retrofit Buildings</p> <p>Erica Dawn Jacobsen</p> <p> The primary goal of the thesis was to detect the retrofit through vibration testing of both buildings. The secondary goal focused on correctly identifying the behavior of …
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High-Resolution, High-Frequency Modal Analysis for Instrumented Buildings
… structures has been limited to low frequency ambient excitation and sparse sensor networks, due to practical limitations. Two key components for high-frequency modal analysis have yet to be studied: 1) Sufficient excitation at high frequencies and 2) high-resolution (high sensor density) …