Abstract
Static torsional stiffness of a structure is the measure of the resistance it offers to twisting. It is an important design parameter for structures subjected to torsion loading. Estimating the static torsional and bending stiffness values of a structure from test rigs is resource intensive. In order to obtain reasonable estimates of static torsional stiffness at a minimal cost and less time, diagnostic procedures that are efficient and accurate are needed. A method that utilizes the impedance modeling technique to extract the static stiffness from free-free modal test is discussed in this paper. The results of applying this technique on a rectangular plate structure are compared with analytical estimates for static torsional stiffness. The merits and limitations of this technique are also discussed.
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© 2014 The Society for Experimental Mechanics, Inc.
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Pasha, H.G., Allemang, R.J., Brown, D.L., Phillips, A.W. (2014). Static Torsional Stiffness from Dynamic Measurements Using Impedance Modeling Technique. In: Allen, M., Mayes, R., Rixen, D. (eds) Dynamics of Coupled Structures, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-04501-6_29
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DOI: https://doi.org/10.1007/978-3-319-04501-6_29
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Publisher Name: Springer, Cham
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Online ISBN: 978-3-319-04501-6
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