Merwin, John E.2009-06-042009-06-041994Smyth, Andrew Willem. "Experimental system identification of model frames using frequency-domain and time-domain methods." (1994) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/13899">https://hdl.handle.net/1911/13899</a>.https://hdl.handle.net/1911/13899Two different metal test frames are excited using the impact-hammer method. The force-input and specific acceleration-output time-histories were recorded, and through frequency-domain, and time-domain structural system identification methods, the systems were identified. Artifacts of the test method and equipment, in the input-output data are highlighted, and their effect upon the identification is diminished through digital signal processing techniques. With some explainable differences, the correspondence between the systems identified in the frequency-domain, the systems identified in the time-domain, and analytical models of the test structures was quite good. Structural system identification, particularly through discrete time-domain methods (due to the digital nature of future implementations), enables the calibration of synthesized finite element models using prototype data, is an excellent means of non-destructive damage evaluation, and is required for active structural control.117 p.application/pdfengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.Civil engineeringMechanical engineeringElectronicsElectrical engineeringThesisTHESIS C.E. 1994 SMYTH