Abstract
There are many examples of physical systems, including structural systems, that are subject to time-varying excitations. One example is a string subjected to a pulsating axial tension. The string loses its stability by so-called parametric resonance , which occurs primarily when the excitation frequency \( \theta \) is twice the string’s eigenfrequency \( \omega_{\text{o}} \), that is, \( \theta = 2\omega_{\text{o}} \).
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Sugiyama, Y., Langthjem, M.A., Katayama, K. (2019). Pinned-Pinned Columns under a Pulsating Axial Force. In: Dynamic Stability of Columns under Nonconservative Forces. Solid Mechanics and Its Applications, vol 255. Springer, Cham. https://doi.org/10.1007/978-3-030-00572-6_13
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DOI: https://doi.org/10.1007/978-3-030-00572-6_13
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