LISI GROUP - Activity report 2019

LISI AEROSPACE Air intake lips that reduce consumption Improving the aerodynamics of air intakes is an important topic for aircraft manufacturers seeking to reduce the fuel consumption of aircraft. By limiting the in flight drag of the engine nacelle – one of the areas in which they are working – increasing the depth of the external surface of the air intake lip constitutes a possible improvement solution. The LISI AEROSPACE site in Marmande has managed to develop a means of producing in one piece this deep lip, complex to manufacture. A prototype of the part was unveiled in June 2019 during the last Paris Air Show. Gains / Benefit – The increase in the depth (x 2) and the surface (x 1.75) of the air intake lip limits the in flight drag of the engine nacelle. LISI AEROSPACE Digital systems to model and optimize LISI AEROSPACE continues to invest in digital simulation – in tools as well as in skills – in order to accelerate the development of new products and innovative manufacturing processes. For the first time this year, the STARLITE™ family of self-aligning nuts has been fully optimized and validated in digital mode, without producing physical prototypes. This new step was made possible by correlating the digital models with the physical tests already carried out, and thanks to the methods of optimization of the parameters developed by the division’s R&D teams. Gains / Benefit – These technologies offer mass reduction gains of around 50% compared to the initial design, a reduction in development time by 6 months thanks to the elimination of physical prototyping. Before Initial design After Optimized design Innovations / Products & Processes 40 LISI 2019