Search results for " DAMP"

showing 6 items of 166 documents

Numerical validation of an approximate formulation for the design of TLCD

2013

passive control tuned liquid column damper statistical linearization pre-design
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Design Of TLCD under random loads: a new formulation

2012

passive control tuned liquid column damper stochastic linearizationSettore ICAR/08 - Scienza Delle Costruzioni
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Thermo-Mechanical Behaviour of Flax-Fibre Reinforced Epoxy Laminates for Industrial Applications

2015

The present work describes the experimental mechanical characterisation of a natural flax fibre reinforced epoxy polymer composite. A commercial plain woven quasi-unidirectional flax fabric with spun-twisted yarns is employed in particular, as well as unidirectional composite panels manufactured with three techniques: hand-lay-up, vacuum bagging and resin infusion. The stiffness and strength behaviours are investigated under both monotonic and low-cycle fatigue loadings. The analysed material has, in particular, shown a typical bilinear behaviour under pure traction, with a knee yield point occurring at a rather low stress value, after which the material tensile stiffness is significantly r…

tensile propertieWork (thermodynamics)Materials scienceflax fibre compositemedicine.medical_treatmentcrimped unidirectional textilesComposite numbercrimped unidirectional textileflax fibre composite; tensile properties; crimped unidirectional textiles; damage; IR thermography; thermoelastic stress analysislcsh:TechnologyArticleSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineThermoelastic dampingUltimate tensile strengthmedicineGeneral Materials ScienceComposite materialSettore ING-IND/15 - Disegno E Metodi Dell'Ingegneria Industrialelcsh:Microscopylcsh:QC120-168.85tensile propertieslcsh:QH201-278.5lcsh:Tthermoelastic stress analysisStiffnessEpoxyTraction (orthopedics)IR thermographylcsh:TA1-2040visual_artThermographyvisual_art.visual_art_mediumlcsh:Descriptive and experimental mechanicslcsh:Electrical engineering. Electronics. Nuclear engineeringmedicine.symptomlcsh:Engineering (General). Civil engineering (General)lcsh:TK1-9971damageMaterials
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The Control Performance of TLCD and TMD: Experimental Investigation

2012

tuned liquid column damperpassive control
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Passive Control of Linear Structures Equipped with non-Linear Viscous Dampers and Amplification Mechanism

2008

Fluid damper devices in civil structures such as buildings or bridges are commonly used as energy absorbers for seismic protection. The problem in the response analysis of structures with filled dampers mainly consists in the fact that, due to the strongly nonlinear behavior of such equipments, the response spectrum technique fails. Moreover, in order to enhance the damping effect various toggle brace configurations have been recently proposed. In this paper by using the concept of power spectral density function compatible with the elastic response spectrum and the stochastic linearization technique, the equivalent damping ratio is obtained. It is shown that once the system is linearized r…

viscous dampers nonlinearity seismic protection toggle brace power spectral density stochastic analysisSettore ICAR/08 - Scienza Delle Costruzioni
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Stochastic seismic analysis of MDOF structures with viscous damper devices

2009

Fluid damper devices in civil structures such as buildings or bridges are commonly used as energy absorbers for seismic protection. The problem in the response analysis of structures with filled dampers mainly consists in the fact that, due to the strongly nonlinear behavior of such equipments, the response spectrum technique fails. In this paper by using the concept of power spectral density function compatible with the elastic response spectrum and the stochastic linearization technique, the equivalent damping ratio is obtained. It is shown that once the system is linearized results obtained by Monte Carlo simulation and those obtained by stochastic analysis are in good agreement. Respons…

viscous dampers stochastic linearization equivalent damping ratio non classically damped systemsSettore ICAR/08 - Scienza Delle Costruzioni
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