This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Updating of an Unmanned Aerial Vehicle Finite Element Model using Experimental Data
Technical Paper
2015-01-2460
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In this paper the finite element model of an Unmanned Aerial Vehicle is updated by using experimental data coming from a standard ground vibration test in order to improve the numerical-experimental correlation. A sensitivity-based updating methodology that iteratively minimizes a residual vector, defined on the modal parameters (e.g. natural frequencies and mode shapes), is considered to identify the unknown values of the updating parameters. The structure under investigation is the Clarkson University Golden Eagle UAV. An initial numerical model of the structure is obtained by assembling the individual components previously updated which included wings, fuselage, horizontal tail, vertical tails and tail booms. As a result the identification procedure shifts its focus on the joints between UAV elements which could not be modeled accurately in earlier investigations.
Authors
Citation
Arras, M., Coppotelli, G., Marzocca, P., and Mezzapesa, A., "Updating of an Unmanned Aerial Vehicle Finite Element Model using Experimental Data," SAE Technical Paper 2015-01-2460, 2015, https://doi.org/10.4271/2015-01-2460.Also In
References
- Bathe , K.J. Finite Element Procedures in Engineering Analysis Prentice-Hall 1982
- Ewins , D.J. Modal Testing: Theory and Practice Research Studies Press 1984
- Grafe , H. Model Updating of Large Structural Dynamics Models using Measured Response Functions PhD Thesis Dept. of Mechanical Engineering, Dynamics Section, Imperial College of Science, Technology and Medicine Oct 1998 London, South Kensington
- Friswell , M.I. , Mottershead , J.E. Finite Element Model updating in structural dynamics Kluwer Academic Publishers 1995
- Mottershead , J.E. , Friswell , M.I. Model updating in structural dynamics: a survey Journal of Sound and Vibration 1993 167 2 347 375
- FEMtools® Model Updating User's Guide, Version 3.5 Dynamic Design Solutions
- www.clarksonuniversityuav.blogspot.com
- Mezzapesa , A.S. , Arras , M. , Coppotelli , G. , Marzocca P. et al. Correlation and updating of an Unmanned Aerial Vehicle Finite Element Model Proceedings of 56th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference Kissimmee, FL, USA January 2015
- Mottershead , J.E. , Link , M. , Friswell , M.I. The sensitivity method in finite element model updating: A tutorial Mechanical Systems and Signal Processing 25 2011 2275 2296
- FEMtools® Model Updating Theoretical Manual, Version 3.5 Dynamic Design Solutions
- Arras , M. and Coppotelli , G. Finite Element Structural Updating using Frequency Response Functions Journal of Aircraft 10.2514/6.2015-1859 2015