Abstract
Self-adaptive systems have the special ability to adjust their dynamical characteristics depending on certain operating conditions. In previous research a clamped-clamped beam with an attached slider has shown self-resonant behavior in experiments. However, the physical mechanisms producing this self-adaptivity are not yet fully understood. Here, we present a numerical model in which the beam is described by its lowest-frequency normal modes and taking into account geometric nonlinearities. Additionally, a clearance between beam and slider allows for unilateral and dry frictional contact interactions between the respective bodies. We demonstrate that the contact interactions are the key to explain the self-adaptive behavior. Moreover, we illustrate that the beam’s geometric nonlinearity is essential to simulate jumps to significantly higher amplitude levels.
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Müller, F., Krack, M.: The role of geometric nonlinearities on the self-resonant behavior of a beam-slider-system. (in preparation)
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© 2020 Society for Experimental Mechanics, Inc.
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Müller, F., Krack, M. (2020). Simulation of a Self-Resonant Beam-Slider-System Considering Geometric Nonlinearities. In: Kerschen, G., Brake, M., Renson, L. (eds) Nonlinear Structures and Systems, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-030-12391-8_14
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DOI: https://doi.org/10.1007/978-3-030-12391-8_14
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Online ISBN: 978-3-030-12391-8
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