Indexation 681.5 : Technologie de la commande automatique. Technologie intelligence. systèmes de contrôle. Automation
681 Mécanismes et instruments de précisionOuvrages de la bibliothèque en indexation 681.5 (157)
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It is usually thought that the integration time step should be small enough to represent properly the variation of the dynamic loading with respect to time. However, there is no evaluation criterion that can be used to determine whether the exte[...]
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Lateral oscillations of square and rectangular prisms resulting from its aerodynamic instability (often called galloping oscillations) are analyzed theoretically and studied experimentally in turbulent flow with a vertical profile of mean wind v[...]
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Colloque sur le devenir du cotrole dans l'industrie agro-alimentaire (Novembre 1979; Paris), Auteur ; Jean-Louis Multon, Éditeur scientifique ; Michel Debatisse, Préfacier, etc.A damage identification procedure for Euler-Bernoulli beams under static loads is proposed. Use is made of an integral formulation for the static problem of damaged Euler-Bernoulli beams. This formulation originates from the observation that a v[...]
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A method for the computation of the dynamic response of highway bridges under the action of moving vehicles is presented. The bridge is idealized as a single, linearly elastic beam with distributed flexibility and concentrated point masses, and [...]
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A finite element approach using a displacement model is employed to analyze the behavior of elastic-plastic shells of revolution under axisymmetrical loading. The procedures developed are based on Kirchhoff hypotheses together with Love’s first [...]
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Equations for stresses in a laminated orthotropic curved beam based on the technical theory assumption (Winkler) are presented. The formulation of the same problem by orthotropic elasticity is indicated. In order to assess the applicability of t[...]
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Buckling behavior of axially compressed sandwich columns exhibits a variety of interesting phenomena. The Column can buckle in a long wave "overall mode" or a short-wave "wrinkling mode," the latter involving severe bending of the facings and tr[...]
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An analytical methodology is developed to study the pollutant dispersion in a turbulent wind flow over a two dimensional hill with a small slope. As in a typical boundary layer problem, the flow domain is divided into an inner and an outer regio[...]
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Asphalt paving layers, particularly the surface course, exhibit vertically graded material properties. This Grading is caused primarily by temperature gradients and aging related stiffness gradients. Most conventional existing analysis models d[...]
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This paper addresses the problem of structural health monitoring (SHM) and damage detection based on a statistical model updating methodology which utilizes the measured vibration responses of the structure without any knowledge of the input exc[...]
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This paper presents an application of wavelet analysis for damage detection and locating damage region(s) for the ASCE structural health monitoring benchmark data. The response simulation data were generated basically by a FEM program provided b[...]
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Freezing of water in porous media such as soil results in a change of mechanical and thermal properties. This change of properties is exploited during artificial ground freezing (AGF) employed in tunneling, during open excavations, and for retai[...]
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Auto parametric vibration of a cable stayed beam structure under a random excitation is first studied numerically with emphasis on cable local vibration. A simplified 3 degree of freedom model that includes linear as well as nonlinear coupling t[...]
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Franck Attelan, AuteurA theoretical formulation of the linear elastic in plane and torsional behavior of corrugated web I girders under in plane loads is presented. A typical corrugated web steel I girder consists of two steel flanges welded to a corrugated steel web[...]
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An approximate solution procedure is presented for rectangular orthotropic sandwich plates under general boundary conditions. A variational method is used to reduce the partial differential equations to a set of ordinary differential equations,[...]
