Topic
Modal testing
About: Modal testing is a research topic. Over the lifetime, 4047 publications have been published within this topic receiving 64772 citations.
Papers published on a yearly basis
Papers
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TL;DR: Model updating is an important step for correlating the mathematical model of a structure to the real one and there are a variety of techniques available for model updating using dynamic and static techniques as discussed by the authors.
Abstract: Model updating is an important step for correlating the mathematical model of a structure to the real one. There are a variety of techniques available for model updating using dynamic and static me...
38 citations
SDRC1
TL;DR: In this paper, the authors present a background on the use of modal testing to detect shuttle component damage, details on this new implementation, and an early use of the SMIS capability to investigate a potential orbiter vibration problem.
Abstract: One of the major tasks between Space Shuttle flights is inspection of the orbiter subsystems such as control surfaces, vertical tail, and wings. To date, inspection techniques have consisted primarily of visual and X-ray methods, which are not only time consuming but not as comprehensive as desired. Previous shuttle component and orbiter ground modal testing revealed that orbiter component damage could be identified using standard modal test methods. As a result, NASA has procured a dedicated shuttle modal inspection system (SMIS) that will be used for subsystem inspection. This paper presents a background on the use of modal testing to detect shuttle component damage, details on this new implementation, and an early use of the SMIS capability to investigate a potential orbiter vibration problem.
38 citations
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TL;DR: In this paper, the effect of fluid-structure interaction on global dynamic properties such as vibrational frequency, mode shape, modal curvature, as well as free vibrational responses along E-glass composite, carbon composite, and aluminum beams, respectively, was examined.
38 citations
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TL;DR: In this paper, a modified Single Station Time Domain (SSTD) method is proposed, which can be applied to include the effect of purely harmonic vibrations, assuming the harmonic frequencies are known a priori.
38 citations
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TL;DR: In this article, a method to determine the approximate normal modes and the modal damping for torsionally coupled buildings on an elastic foundation is presented, where the response quantity to be matched is selected in a consistent and logical manner.
Abstract: A method to determine the approximate normal modes and the modal damping for torsionally coupled buildings on an elastic foundation is presented. The modal damping is determined by an iterative procedure which matches the approximate normal mode solution with the rigorous solution. The response quantity to be matched is selected in a consistent and logical manner. The normal modes and the damping ratios thus found are then used to determine the seismic response of the interaction system by the response spectrum technique.
38 citations