The aim of the ‘SINFONI’ project was to develop a manufacturing range for an innovative definition of acoustic nacelle panels for new-generation engines, offering competitive acoustic performance and production costs in a flexible environment.

 

Project Results

 

The project has advanced the industrial maturity of two innovative acoustic concepts. The first concept, already studied in the OCEAN project, was tested under semi-industrial conditions and achieved the desired final production rate. A second, more recent concept has been the subject of a manufacturing study using industrial resources.

The IRT Jules Verne, Airbus and Europe Technologies Gébé2 have worked together on the development of an automated cell for inserting acoustic elements, the development of non-destructive tests and the evaluation of performance on several representative demonstrators.

 
The IRT Jules Verne, Airbus and DELTANEO have developed a range of metal shaping and welding assembly processes for a second innovative acoustic concept.

Finally, the IRT Jules Verne and the IREPA LASER teams have developed an automated high-speed laser drilling process for representative composite parts and a process for monitoring the drilling rates of the parts. Thermal modelling was used to optimise the drilling strategy.

Technical & Economic Impacts

 

  • High-speed, flexible manufacturing processes
  • Cost reduction
  • Eco-design of acoustic panels

 

Industrial Applications

The results of the project should enable the partners to maintain a competitive edge in the production of innovative acoustic concepts, based on proofs of concept that meet industrial constraints.

 

In addition to the nacelle market, the development of generic technological building blocks resulting from this project could also be of benefit to other applications in the aeronautical industry, and even in other fields.

 

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