Recent work addressing the stability analysis of controllers at code level has been mainly focused on the controller alone. However, most of the properties of interest of control software lie in how they interact with their environment. We introduce an extension of the analysis framework to reason on the stability of closed loop systems, i.e., cont...
The Mathilde Bridge is one of the six bridges over the Seine River in the city of Rouen and supports a heavy traffic. It was built in 1977-79 and is composed of a single steel span 115 m long, consisting of an orthotropic deck resting on two girders. On October 29th, 2012, the Mathilde bridge was subject to a heavy fire and was immediately closed t...
The use of in situ fine-grained soils treated with lime and/or hydraulic binders as subgrade in common civil engineering infrastructures is a sustainable upgrading process for natural materials with low mechanical performances. In the case of land transport projects, the lack of knowledge on mechanical fatigue behavior in these materials leads eith...
A novel unconventional pseudostatic analysis is proposed here to infer on the sensitivity of a landslide to earthquakes characterized by different physical properties. Several sine waves with different amplitudes, frequencies and phases were applied to the landslide mass assuming limit equilibrium conditions. The unconventional approach was used fo...
The Mathilde Bridge is one of the six bridges over the Seine River in the city of Rouen and supports heavy traffic. It was built in 1976-79 and is composed of a single metal span 115 m long, consisting of an orthotropic steel deck resting on two girders. On October 29th, 2012, the Mathilde bridge was subjected to a heavy fire and was immediately cl...
Cette thèse porte sur l'étude de la dynamique d'un film liquide mince soumis à une excitation normale à son interface. Cette situation donne lieu à des instabilités dites de Faraday qui, sous certaines conditions, conduisent à la formation de gouttes. Dans le contexte des systèmes d'injection assistée utilisés en propulsion aéronautique, il existe ...
Published in Thin-Walled Structures
Highlights•Development of a turnkey methodology for the design of numerical experiments.•Validation through robust statistical method.•Development of a preliminary design formula for curved stiffened steel panels.•Cost optimisation of a stiffened curved panel under uniform compression.
Le risque lié aux cavités souterraines est un risque avéré dans de nombreuses régions de France. Le Plan National Cavité démarré en 2011 a pour objectifs de sensibiliser les acteurs à ces problématiques, souvent ignorées du grand public. Les cavités pouvant évoluer par manque d'entretien ou tout simplement par vieillissement, il est utile de savoir...
This paper proposes a switching steering vehicle control designed using the linear quadratic regulator (LQR) problem, the Linear Matrix Inequality (LMI) framework and the H norm. The proposed switched control law comprises two levels: the first level is a switched Proportional-Integral-Derivative controller of lateral deviation (PIDy) and the secon...
In January 2006 the French Committee on Dams and Reservoirs – FrCOLD - issued provisional guidelines for structural safety of gravity dams. It was the first attempt to produce a semi-probabilistic limit-state method for the design of hydraulic works, in a format similar to the Eurocodes. After 5 years of a progressive implementation of those guidel...
