How to use a Generic Model to Improve Part Quality and Testability
- 259 Downloads
One big challenge in aeronautics is the combination of lightweight structures and a high degree of flight safety. Highly optimized structures and extensive quality assurance within NDT methods is one possibility to address this objective. The needs of NDT in respect of testability are often not considered during the design process of a structure or a part. This can lead to high inspection costs or even the need to redesign the part. The idea of this Generic Model would be to address this issue by highlighting the requirements of NDT allowing part optimization regarding these requirements in the early design process. This article presents the two parts of this Generic Model. The static part will be describing the test situation while the functional part will show the interaction of the static elements. Beginning with a single characteristic comparison, the example will show how to evaluate the testability of a complete part within the various aspects of NDT. An example of design considerations for a carbon fiber-reinforced plastic component is presented to demonstrate the application of the Generic Model. It will be seen how an automated evaluation is possible, and based on this idea a software tool could be developed. Two examples of design considerations for a carbon fiber-reinforced plastic component is presented to demonstrate the application of the Generic Model. The goal of implementing this Generic Model will be to improve part design, reduce iterations in the design process and increase the testability of NDT.
KeywordsNDT Design to NDT Generic Model Data-Enabled NDT
The author gratefully acknowledges Prof. Christian Große, Reinhold Oster, and Dr. Rainhill Freitas for the discussions and feedback. Thanks are also due to Dr. Sybille Fischer and Richard Sargent for their support.
- 1.C. Beine, C. Boller, U. Netzelmann, F. Porsch, R. Sridaran Venkat, M. Schulze, A. Bulavinov, H. Heuer, Ndt for cfrp aeronautical components a comparative study. in International Symposium on NDT in aerospace, (2010)Google Scholar
- 4.EASA, PART-21 - Certification of aircraft and related products, parts and appliances, and of design and produc on organisation. European Aviation Safety Agency (EASA) (2013)Google Scholar
- 5.ISO/IEC/IEEE, Iso/iec/ieee 31320-1: 2012 (adoption of ieee std 1320.1-1998 ): Information technology – modeling languages – part 1: Syntax and semantics for idef0 (2012)Google Scholar
- 6.ISO/IEC/IEEE, Iso/iec/ieee 31320-2: 2012(e): Iso/iec/ieee international standard - information technology – modeling languages – part 2: Syntax and semantics for idef1x97 (idefobject) (2012)Google Scholar
- 7.M. Mosch, Zfp Prüfbarkeit an faserverbundbauteilen. ein modell zur automatisierten bewertung von prüfsituationen. in DGZfP-Jahrestagung, (2017)Google Scholar
- 8.M. Mosch, R. Oster, C.U. Grosse, non-destructive testing of cfrp in the design process - a generic approach to describe and optimize non-destructive testing. in 19th World Conference on Non-Destructive Testing (WCNDT), (2016)Google Scholar
- 9.R. Oster, non-destructive testingmethodologies on helicopter fiber composite components challenges today and in the future. in 18th World Conference on Nondestructive Testing, (2012), pp. 16–20Google Scholar
- 10.P. Schmiedel, M. Holzheimer, Development of CFRP aircraft doors with the interaction of ndt and strength analysis. in 19th World Conference on Nondestructive Testing, (2016)Google Scholar
- 11.K. Weiler, Edge-based data structures for solid modeling in curved-surface environments. in IEEE Computer Graphics and Applications 5.1, (1985), pp. 21–40Google Scholar