Power and Energy Balance for Model Validation and Reduction - Frequency Coupling: Application on Aircraft System Models

Document Number: 2009-01-3220

Date Published: November 2009

Author(s):
Julien Marques - Messier Bugatti
Yann Chamaillard - Universite D'Orleans
Alain Charlet - Universite D'Orleans
Michel Basset - Universite de Haute Alsace
G.L. Gissinger - Universite de Haute Alsace
Jean-Pierre Garcia - Messier Bugatti

Abstract:
Nowadays, numerical modeling/simulation is an essential tool. It is used in all the design stages in order to improve quality and to reduce costs and time-to-market. As models address increasingly multiphysics and complex phenomena throughout the V-cycle process, modelers are confronted, sooner or later, with the need for model reduction. This paper describes the setup of a virtual prototyping platform and highlights the interest of integrating energetic aspects, which are used to compute new model reduction criteria. A similar energy approach, "MORA" using "Activity," is already used by Bond Graphists in order to obtain the "Proper Model." The methodology presented here (PEMRA: "Power & Energy-based Model Reduction Algorithm"), with new power and energy criteria, makes it possible to obtain a simpler and more accurate reduced model than with MORA methodology, while improving the system's energy information. However, as these methodologies are still totally dependant on the system's excitation signal, a new frequency coupling is proposed to solve this problem.

File Size: 1287K
Product Status: In Stock

See other papers presented at SAE 2009 AeroTech Congress & Exhibition, November 2009, Seattle, WA, USA, Session: Power Systems - Modeling & Simulations

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