Study on Damping Performance of Hyperboloid Damper with SMA-Negative Stiffness
نویسندگان
چکیده
To improve the limiting capacity of isolation bearings and reduce residual deformation, a new material shape memory alloy (SMA) was introduced into damping device. SMA materials have effect, superelastic properties metal alloys. Although bearing can self-resetting ability bridge, it will increase internal force response substructure compared with ordinary bearing. solve this problem, type negative stiffness hyperboloid shock absorber is proposed. The device provided restoring by cables, rigidity two friction pendulum supports opposite curved surfaces, energy dissipation between slider upper lower steel plates. Theoretical derivation finite element analysis results show that not only provide bridge but also partially structural system on premise reducing displacement bridge.
منابع مشابه
Advanced damper with high stiffness and high hysteresis damping based on negative structural stiffness
0020-7683/$ see front matter 2013 Elsevier Ltd. A http://dx.doi.org/10.1016/j.ijsolstr.2013.03.018 ⇑ Corresponding authors. Tel.: +1 608 346 7275 (L. Don E-mail addresses: [email protected] (L. (R. Lakes). High structural damping combined with high stiffness is achieved by negative stiffness elements. Negative incremental structural stiffness occurs when a column with flat ends is subjecte...
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ژورنال
عنوان ژورنال: Buildings
سال: 2022
ISSN: ['2075-5309']
DOI: https://doi.org/10.3390/buildings12081111