Abstract
This paper presents experimental results on nonlinear vibrations of a combined structure with segments of beams and a disc, which is a fundamental model of a micro scanner. Both ends of the structure are clamped for deflection and one of the ends of the structure is constrained with an axial spring. Under an axial tensile force, the structure is excited with lateral periodic acceleration. Sweeping the excitation frequency, nonlinear frequency response curves are obtained. In the typical frequency region, non-periodic responses are generated. The responses are inspected by the Fourier spectrum, the Poincaré projection, the maximum Lyapunov exponents and the principal component analysis. The non-periodic responses are confirmed as chaotic responses coupled with torsional and the lowest flexural modes of the combined structure.
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Okada, K., Maruyama, S., Nagai, Ki. et al. Experiments on nonlinear vibrations of a combined structure with segments of beams and a disc subjected to axial tensile force. Int. J. Dynam. Control 3, 148–156 (2015). https://doi.org/10.1007/s40435-014-0135-0
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DOI: https://doi.org/10.1007/s40435-014-0135-0