Descripción del proyecto
Herramientas estadísticas que ayudan a optimizar el cableado en aeronaves
A medida que el diseño de las aeronaves transita hacia las aeronaves eléctricas, se debe prestar mayor atención al impacto de las interferencias electromagnéticas en el diseño de los sistemas de interconexión de cableado eléctrico (EWIS, por sus siglas en inglés). Las distancias pequeñas son mejores para minimizar la huella de los EWIS en las aeronaves, pero cuando los grupos de cables están demasiado cerca unos de otros, sus señales pueden crear interferencias. En el proyecto ANALYST, financiado con fondos europeos, se estudiará la distancia mínima necesaria entre dos grupos de cables eléctricos paralelos para evitar una perturbación eléctrica. Sus investigadores están desarrollando métodos de simulación estadística que ayudarán a los fabricantes de aeronaves a cablear de la mejor manera posible en las aeronaves. Su planteamiento constituirá un cambio de las reglas basadas en la experiencia a otras basadas en evaluaciones numéricas.
Objetivo
The large density of cables transporting various signals due to the introduction of composite materials and the transition to a More Electrical Aircraft is nowadays increasing the complexity of the design from an EMC point of view. So that the evolution of regulations makes safety analysis mandatory for the EWIS, leading to the necessity to estimate the reliability of the wiring system together with the functions which are committed to it.
New EMC EWIS design rules and prototyping tools are needed to ensure the required very low rate of failure, without assuming too high design margins which could question expected gains at “global platform” level, increasing weight, installation complexity and cost.
ANALYST aims at developing and validating a numerical modelling methodology based on statistical approaches for the specific context of EM compatibility analysis of cable harnesses in aeronautics.
The following main goals will be pursued:
• Development of a statistical harness modelling methodology, suitable to catch real-life complexity of aircraft installed harness (of the order of 40.000 cables, 10.000 electrical links)
• Demonstration, evaluation of effectiveness and validation of the methodology; different modelling approaches, referring to state of the art solutions and innovations will be compared and validated with respect to measurement data.
• Integration of the finally selected modelling approach in a CAE Framework, already equipped with the workflows and procedures needed to properly manage the wiring complexity of real aircraft.
The solution has been identified in a fundamentally original approach, assuming to definitely consider the not-deterministic nature of the above mentioned problem, looking for a statistical description and extreme value assessment of the relevant physical parameters (currents, voltages, power) linked to statistical descriptions of the involved variables/environment (cable bundle geometry, installation conditions, etc.).
Ámbito científico
- natural sciencesphysical scienceselectromagnetism and electronicselectromagnetism
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraft
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaeronautical engineering
- natural sciencesmathematicsapplied mathematicsstatistics and probability
Programa(s)
Régimen de financiación
CS2-IA - Innovation actionCoordinador
91120 Palaiseau
Francia