Workshop

2014

Program

Session 1: Markets & Products

Chairman: M. Oberguggenberger
Time: 9:45 - 12:00

9:45 - 10:15

The Future of the European ARIANE Launcher

R. Nicolay (AIRBUS D&S, Ottobrunn)

ARIANE 5 (in its different Versions) now is since 17 years well in operational service. This is nearly half the way of the entire service time of ARIANE (first launch in 1979). The report will give an outlook about the future of this successful European Launcher ARIANE with focus on the ARIANE 5 ME as well as the ARIANE 6. It will give information about the technical features as well as the presently valid plannings.

10:20 - 10:50

From Theory to Reality-imposing real world requirements on the world of numerics

P. Glaser (FACC AG, Ried im Innkreis)

The ever increasing performance of computing tools provides unprecedented possibilities to evaluate the last single detail of, for example, a structural product. While this, per se, provides numerous novel and useful possibilities, it calls for an intelligent choice of when to take advantage of such possibilities and when they do not make a difference. When input parameters are of coarse nature, then post processing to a high precision is purely numeric, but non relevant. For example, if you are going to measure the consumption of a car over 1 km, you don’t need to measure this distance with an accuracy of a mm. This presentation will discuss similar aspects in the world of structural analysis.

10:55 - 11:25

Process Simulation of Composites

R.Hinterhölzl (TU München)

The high potential in lightweight design of composite parts is challenged by the need for automation of the manufacturing processes, the reduction of cycle times and process costs. Modeling the manufacturing process is an effective and flexible approach to understand and optimize the process long before the first prototype is built and to transfer the process information in the structural analysis of the part. The research is based on an integral simulation platform. This platform follows "design-to-fiber" and "design-to-process" approaches and allows a customized combination of individual simulation steps (e.g. draping simulation and structural analysis) including software-neutral data exchange. The composite part is studied beginning with its manufacturing: direct preforming (braiding, AFP) or sequential preforming (draping) followed by filling simulation up to compaction, curing and consolidation simulation. The research is accompanied by the development of material characterization techniques, the validation of the simulation approach on generic structures and its application on a part level.

11:30 - 12:00

Analysis of blade impact on the case structure in commercial aircraft engines

R. Tano (GKN Aerospace Sweden)

Todays trend to construct lightweight aircraft engines requires the use of as accurate methods as possible to avoid overconservatism in the design. The thickness in the containment zones has traditionally been set by simple handbook analyses but will be replaced by more detailed FE-analyses in which a varying number of blades might be cut-off at varying positions and where the succeeding blade to blade and blade to case interactions are modeled. An essential feature is the failure criteria of the case and blades which put a lot of effort in testing, material parameters, material models, FE-analysis settings etc. An overview will be given of these challenges.Todays trend to construct lightweight aircraft engines requires the use of as accurate methods as possible to avoid overconservatism in the design. The thickness in the containment zones has traditionally been set by simple handbook analyses but will be replaced by more detailed FE-analyses in which a varying number of blades might be cut-off at varying positions and where the succeeding blade to blade and blade to case interactions are modeled. An essential feature is the failure criteria of the case and blades which put a lot of effort in testing, material parameters, material models, FE-analysis settings etc. An overview will be given of these challenges.