Langues

Research laboratory

UMR 6602 - UCA/CNRS/SIGMA

Probability Approaches

 

  • Stochastic electromagnetic compatibility
  • Optimization of energy performance of buildings

 

Heads of action:

Pierre BONNET

Michel FOGLI

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STOCHASTIC ELECTROMAGNETIC COMPATIBILITY - INTEGRITY OF CABLES IN COMPLEX STOCHASTIC ENVIRONMENTS

 

Quantifying the effects of uncertainties on the behavior of electronic systems is nowadays of paramount importance in regards to electromagnetic compatibility (EMC) standards. Knowledge and use of the most efficient techniques of uncertainty propagation is often of practical importance for the analysis and design of systems in the EMC framework. A series of explorative works is being conducted in order to apply the most efficient stochastic methods to reliability assessment and sensitivity analysis of EMC problems under uncertainty.

         
Reliability assessment of a transmission line above a ground plane illuminated by a linearly polarized plane wave with an incidence angle (10 random input parameters) -
Relative probabilistic importance measures vs. incidence angle.
  Reliability assessment of a transmission line network with 3 localized shielding effectiveness deficiencies (failure due to a current in ZL8 impedance above a prescribed level) - Failure probability estimates vs. correlation between amplitudes of tangential EM fields.

 

Contacts: Pierre BONNET         This email address is being protected from spambots. You need JavaScript enabled to view it. 
  Jean-Marc BOURINET This email address is being protected from spambots. You need JavaScript enabled to view it.
   Michel FOGLI  This email address is being protected from spambots. You need JavaScript enabled to view it.
  Sébastien LALLECHERE This email address is being protected from spambots. You need JavaScript enabled to view it.


PhD: A. Kouassi

Selected papers:
•    Safety assessment of a transmission line with EMC requirements, A. Kouassi et al., URSI GASS XXXIth, Beijing (2014).
•    Fiabilité de fonctionnement et sensibilité CEM pour un problème de transmission, A. Kouassi et al., In Proceedings du 17ème Colloque International et Exposition sur la Compatibilité Electromagnétique, Clermont-Ferrand (2014).
•    Uncertainty assessment of a coaxial line's capacitance in a stochastic context, A. Kouassi et al., ICEAA 2015, Int. Conf. on Electromagnetics in Advanced Applications, Turin (2015).

 



RELIABILITY-BASED OPTIMIZATION OF ENERGY PERFORMANCE OF BUILDINGS


The performance of building insulations depends on the material properties and thickness and on the efficiency of heating and cooling systems. Performance is subjected to various types of uncertainties which affect insulation and lead to additional costs. The research activities aim at considering the uncertainties related to the materials, climate changes and occupant behavior. A new formulation of the total energy cost is provided and applied to design optimization under reliability constraints, in order to allow for better retrofitting decisions.

              
Propagation of uncertainties in the energy performance model.   Expected and confidence intervals of energy consumption according to uncertainty considerations.

 

Contacts:  Alaa CHATEAUNEUF   This email address is being protected from spambots. You need JavaScript enabled to view it.
  Jean-Pierre FONTAINE This email address is being protected from spambots. You need JavaScript enabled to view it.


PhD: A. Aïssani, W. Belazi

Selected papers:
•    Cost model for optimum thicknesses of insulated walls considering indirect impacts and uncertainties, A. Aïssani et al., Energy and Buildings 84, 21 (2014).
•    Reliability-based design optimization of insulation systems considering climate change and workmanship, A. Aïssani et al., ICASP12, Vancouver (2015).
•    Impact of the different life cycle cost models on design decisions for insulation, A. Aïssani et al., ESReDA, Reliability Assessment and Life Cycle Analysis of Structures and Infrastructures, Turin (2014).