Descripción del proyecto
Manejar con cuidado, pero con presión
Los materiales compuestos han sustituido en gran medida a los metales en muchas estructuras de las aeronaves, con lo que han reducido considerablemente el peso, el consumo de combustible y las emisiones, a la vez que han mejorado el rendimiento. La caja alar de una aeronave es una de ellas, un componente estructural compuesto a partir del cual se extienden las alas. Está sujeta a cargas muy elevadas y su integridad no solo repercute en la seguridad sino también en la aerodinámica, de manera que la unión de los componentes de la caja alar es esencial. El proyecto financiado con fondos europeos WIBOND desarrollará una herramienta de ensamblaje de uniones que será capaz de colocar el adhesivo, aplicar la presión adecuada e incorporar los sensores de fibra óptica en la línea de unión para la monitorización de la salud estructural de la unión. Esta tecnología contribuirá al demostrador de fuselaje de Clean Sky, entre otros.
Objetivo
An innovative flexible jig will be designed and fabricated to allow the structural bonding of a SAT composite wingbox. TM will use the jig to Join internal ribs and lower panel to the upper panel where 3 spar are already cocured. The bonding process will be performed using a paste adhesive that require the application of a calibrated pressure on the bond line. To allow the control of effective bonding an SHM system based on fiber optic sensors will be embedded in the bonding line. Therefore the jig must allow the bonding operation like paste adhesive application and squeezing while holding the required part position during the process. The Consortium propose a jig with a part that sliding on a lower base give all the necessary accessibility for rib bonding and position of SHM sensors. It will be necessary to develop suitable guidelines for the bonding jig. Different methods to hold the part positioning and give bonding pressure application will be evaluated including mechanical and enflatable devices. As experimental verification is considered necessary to fulfill the requirements, before full scale jig design and fabrication, subscale trial will be performed by WIBOND consortium. Guidelines on the process delivered by TM integrated with know-how of WIBOND on assembly and bonding jig will be tested on a subscale, representative bonding jig. Detailed Jig design will be performed. It includes 3D models, 2D tables, stress, thermal & tolerance analysis. Partially in parallel with design, to meet the tight schedule, Jig components will be fabricated and assembled using state of art control equipment like Laser tracker and galvanometric Harm. Jig will be delivered and installed at TM Premises were also try out and training of operators will be performed. Lightweight recyclable materials will be used for main structure and components. Jig will be have provision for self heating but the heating system isn’t included in the baseline proposal.
Ámbito científico
- engineering and technologymaterials engineeringfibers
- engineering and technologycivil engineeringstructural engineeringstructural health monitoring
- engineering and technologymechanical engineeringthermodynamic engineering
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensors
- natural sciencesphysical sciencesopticsfibre optics
Programa(s)
Régimen de financiación
CS2-IA - Innovation actionCoordinador
84012 Angri
Italia
Organización definida por ella misma como pequeña y mediana empresa (pyme) en el momento de la firma del acuerdo de subvención.