Experimental and analytical studies on a novel double-stage coupling damper

Thin-Walled Structures, Год журнала: 2023, Номер 195, С. 111324 - 111324

Опубликована: Ноя. 4, 2023

Язык: Английский

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Design of the negative stiffness NegSV mechanism for structural vibration attenuation exploiting resonance

International Journal of Mechanical Sciences, Год журнала: 2023, Номер 260, С. 108640 - 108640

Опубликована: Июль 24, 2023

The principle of influencing oscillation amplitudes a primary system via secondary attachments can be enhanced with inclusion nonlinear mechanisms towards energy absorption. This work exploits such scheme, termed the NegSV device, which harnesses geometrically mechanism to create negative stiffness for vibration attenuation. suggested device succeeds in shifting characteristics and, therefore, alters overall dynamics without additional mass requirements. top part structure act as resonator respect lower by matching respective resonant frequencies and thus directing at specified locations. Analytical solutions demonstrate improvement dynamic performance system, is modified attachment proposed device. Physical testing on 3 dimensional frame further performed, shaking table tests, mounted storey experimental structure. experiment reveals reduction acceleration inter-storey drift response all levels below retrofit, while requirement increased top-storey drifts identified. Nonlinear finite element analyses are finally performed detailed numerical model, agreement measurements exploited mechanism's design. shows significant potential attenuating structural vibration, offering benefit ease installation.

Язык: Английский

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Seismic behavior of steel frames with H-shaped damper

Journal of Constructional Steel Research, Год журнала: 2023, Номер 213, С. 108401 - 108401

Опубликована: Дек. 23, 2023

Язык: Английский

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Parametric study of the innovative model of angled U-shape damper with multiphase yielding mechanism

International Journal of Non-Linear Mechanics, Год журнала: 2024, Номер unknown, С. 104998 - 104998

Опубликована: Дек. 1, 2024

Язык: Английский

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Structural feasibility of braced-damper system with adaptive negative stiffness devices in yielding multi-storey steel frames

Journal of Constructional Steel Research, Год журнала: 2022, Номер 197, С. 107494 - 107494

Опубликована: Авг. 16, 2022

Язык: Английский

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