Preparation of Computer Model of the Aircraft for Numerical Aeroelasticity Tests – Flutter

Article presents the geometry and structure reconstruction procedure of the aircraft model for flatter research (based on the I22-IRYDA aircraft). For reconstruction the Reverse Engineering techniques and advanced surface modeling CAD tools are used. Authors discuss all stages of data acquisition process, computation and analysis of measured data. For acquisition the three dimensional structured light scanner was used. In the further sections, details of reconstruction process are present. Geometry reconstruction procedure transform measured input data (points cloud) into the three dimensional parametric computer model (NURBS solid model) which is compatible with CAD systems. Parallel to the geometry of the aircraft, the internal structure (structural model) are extracted and modeled. In last chapter the evaluation of obtained models are discussed.




References:
[1] C. S. Fraser, "Optical 3D measurement techniques in the U.S. aerospace
industry -Current status and future prospects". Proceedings, Symposium
on Surveillance and Monitoring Surveys, University of Melbourne,
Australia, 1989, pp 98-104.
[2] J. Giergiel, T. Uhl, ÔÇ×Identyfikacja uk┼éad├│w mechanicznych.", PWN,
1990, Warszawa, Poland
[3] R. Holting, Leica, "ECDS, solution for extended measuring tasks in
aircraft manufacturing", Optical 3-D Measurement Techniques III,
Gruen and Kahmen (eds), Wichmann, 1995, pp 22-28.
[4] H. Lomax, T.H. Pulliam and D.W. Zingg, "Fundamentals of
Computational Fluid Dynamics", Series: Scientific Computation ,
Springer-Verlag, 2001, ISBN: 3-540-41607-2.
[5] P. Posadzy, M. Morzynski., "Final report on functionality of the
implemented generic CSM code (Milestone M8)", Deliverable D5.2-24,
2004, Poznan, Poland.
[6] O. C. Zienkiewicz, R.L. Taylor, "The Finite Element Method", Fifth
edition. Barcelona: Butterworth-Heinemann, 2000. Vol. 1: The Basis.
ISBN 0-7506-5049-4.