Direct evaluation of the equivalent linear damping for TLCD systems in random vibration for pre-design purposes |
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| Institution: | 1. Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali (DICAM), Università degli Studi di Palermo, Viale delle Scienze,I-90128 Palermo, Italy;2. Facoltà di Ingegneria ed Architettura, Università degli Studi di Enna “Kore”, Cittadella Universitaria, Enna Bassa, I-94100 Enna, Italy;1. BMT Fluid Mechanics Ltd., Teddington, UK;2. BMT Fluid Mechanics Ltd., Kuala Lumpur, Malaysia;3. SoftSim Consult Ltd., Sofia, Bulgaria;1. IFP Energies nouvelles, Rond-point de l’échangeur de Solaize, BP 3, 69360, Solaize, France;2. MINES ParisTech, Centre Automatique et Systèmes, Unité Mathématiques et Systèmes, 60 Bd St-Michel, 75272, Paris, Cedex 06, France;1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;2. Changjiang Institute of Survey, Planning, Design and Research, Wuhan 430010, China |
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| Abstract: | Passive control of structural vibrations has received in recent years a great attention from researchers concerned with vibration control. Several types of devices have been proposed in order to reduce the dynamic responses of different kinds of structural systems. Among them, the Tuned Liquid Column Damper (TLCD) proved to be very effective in reducing vibration of structures. Since the increasing use of TLCDs in practical realizations, this paper aims at developing an approximate formulation, by means of a statistical linearization technique, able to estimate the parameters of a structure equipped with a TLCD subjected to random loads for pre-design purposes. Moreover, it is shown that results obtained via Monte Carlo approach on the non-linear system are in good agreement with those obtained by means of the proposed formulation. |
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| Keywords: | Passive control Tuned liquid column damper Statistical linearization Equivalent linear damping Optimization |
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