مؤتمر
Passive Control Strategy for Wind-induced Parametric Instabilities in Suspension Bridges
| العنوان: | Passive Control Strategy for Wind-induced Parametric Instabilities in Suspension Bridges |
|---|---|
| المؤلفون: | Andrea Arena, Walter Lacarbonara |
| المساهمون: | Vincenzo Gattulli, Oreste Bursi, Daniele Zonta, Arena, Andrea, Lacarbonara, Walter |
| بيانات النشر: | Vincenzo Gattulli; Oreste Bursi; Daniele Zonta |
| سنة النشر: | 2019 |
| المجموعة: | Sapienza Università di Roma: CINECA IRIS |
| مصطلحات موضوعية: | suspension bridge, parametric resonance, passive vibration control |
| الوصف: | A nonlinear reduced-order model of suspension bridges (SB) is presented to study the dynamical response and to investigate aerodynamic stability control strategies coping with vortex-induced vibrations (VIV) leading to principal parametric resonances scenarios. A passive control system consisting of a vibration absorber is incorporated in the model by coupling the dynamics of the bridge with those of an eccentric mass viscoelastically connected to the deck. A direct asymptotic approach is used to investigate the dynamic instabilities induced by the parametric-type forces in the case of a 2:1 ratio between the frequency of the aerodynamic loads and the fundamental torsional frequency of the bridge. It is shown how an optimized passive control system can increase the range of wind speeds for which the bridge does not undergo large-amplitude parametric oscillations signaling the loss of stability of the fundamental equilibrium configuration. |
| نوع الوثيقة: | conference object |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/isbn/978-88-9377-114-6; ispartofbook:ANCRiSST 2019 Procedia 14th International Workshop on Advanced Smart Materials and Smart Structures Technology; 14th International Workshop on Advanced Smart Materials and Smart Structures Technology; firstpage:179; lastpage:182; numberofpages:4; http://hdl.handle.net/11573/1608752Test |
| DOI: | 10.13133/9788893771146 |
| الإتاحة: | https://doi.org/10.13133/9788893771146Test http://hdl.handle.net/11573/1608752Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.47578B3E |
| قاعدة البيانات: | BASE |
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