Nonlinear dynamic response of an isolation system with superelastic hysteresis and negative stiffness
نویسندگان
چکیده
Abstract The negative stiffness exhibited by bi-stable mechanisms together with the tunable superelasticity offered shape memory alloy (SMA) wires can enhance dynamic resilience of a structure in context vibration isolation. effects and superelastic damping base-isolated structures are here explored carrying out an extensive study nonlinear response via pathfollowing, bifurcation analysis, time integration. frequency-response curves isolated structure, without contribution, numerically obtained for different excitation amplitudes to construct acceleration displacement transmissibility curves. advantages stiffness, such as augmentation reduced acceleration/displacement transmissibility, well existence rich scenarios toward quasi-periodicity chaos, discussed.
منابع مشابه
Advanced damper with high stiffness and high hysteresis damping based on negative structural stiffness
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ژورنال
عنوان ژورنال: Nonlinear Dynamics
سال: 2021
ISSN: ['1573-269X', '0924-090X']
DOI: https://doi.org/10.1007/s11071-021-06666-y