Optimal control of traffic flow on periurban ringways with an application to the Boulevard Périphérique in Paris
IFAC, 11th World Congress, Talinn, ESTONIE, 13-/08/1990 - 18/08/1990
Colloque international sur la stabilité : recueil des conférences
Colloque, Paris, 3-5 novembre 1987. Organisé par l'Académie Nationale de l'Air et de l'Espace et l'ONERA-CERT
SESSION I ASPECTS FONDAMENTAUX DE LA STABILITÉ :
Théorie et empirisme. La recherche de la stabilité des aéroplanes dans les débuts de l'aviation / P. Lissarage
Progrès récents dans la théorie de la Stabilité / C. Marchal
Pourquoi la Stabilité?...
Fast three-dimensional temperature reconstruction
The work presented here deals with the reconstruction of the thermal field inside a three-dimensional structure when only some pointwise temperature measurements along a time interval [0,T] are available. The model-based reconstruction procedure builds upon optimal control theory applied to the determination of the unknown boundary conditions. The ...
Optimal Energy Management Using Model Predictive Control: Application to an Experimental Building
In energy-efficient buildings, the interactions and coupling effects between the building, its environment and its conditions of use play an important role on the energy balance. Recent development in information and communication technologies enable to have real time information about current and future environmental conditions, energy price or CO...
Identification of reinforced concrete beam parameters using inverse modeling technique and measured dynamics responses f...
Reinforced and prestressed concrete beams are widely employed in civil engineering structures, e.g. in simply supported spans using prestressed concrete beams (VIPP). To reduce the financial cost due to maintenance, structure damages have to be detected early. To achieve this purpose, one needs robust monitoring techniques. The paper deals with the...
Elastodynamics model updating for the monitoring of reinforced concrete beam: methodology and numerical implementation
Reinforced concrete beams are widely employed in civil engineering structures. To reduce the maintenance financial cost, structure damages have to be detected early. To this end, one needs robust monitoring techniques. The paper deals with the identification of mechanical parameters, useful for Structural Health Monitoring, in a 2D beam using inver...
Piecewise linear car-following modeling
Nous présentons un modèle de trafic routier qui étend les deux modèles : loi de poursuite linéaire et modèle min-plus (basé sur l'algèbre min-plus). Une dynamique temps-discrète des véhicules décrivant le trafic sur une route à une seule voie sans dépassement, est interprété comme une équation de la programmation dynamique d'un problème de contrôle...
Fluidification du trafic Transilien : approche prédictive et optimisation quadratique
Avec plus d'un million de voyageurs quotidiens, la ligne RER A est la ligne ferroviaire la plus empruntée d'Europe et présente plusieurs particularités. Durant les périodes de pointe, de nombreuses perturbations viennent troubler le bon fonctionnement de la ligne et la fluidité de la circulation. Pour fluidifier la ligne, nous proposons une approch...
Calibration of building thermal models using an optimal control approach
The prediction of a building's thermal behaviour within a short time horizon is necessary in many energy management applications. A numerical model can serve this purpose provided a good accuracy is obtained through a suitable calibration procedure. The paper deals with a model calibration procedure based on short-time on-site and weather measureme...
Influence of discretization and model errors on inverse computational fluid: Application to a water pipe junction
The paper addresses the reconstruction of a Navier-Stokes flow in water pipes at low Reynolds numbers. A classical strategy consists of identifying optimal boundary velocities that minimize the data misfit, which is normally expressed in L2-norm. Herein, we take full advantage of the knowledge of velocity spatial shape in water pipes. As a conseque...
