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From Theory to Three-Dimensional Finite Element Models: An Innovative Method for Validation
Technical Paper
2018-01-1536
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
As a key part of numerical analysis, the modeling process has a tremendous influence on the quality of the results. While there is general awareness concerning uncertainties that arise during modeling, their quantity and sensitivity rarely are known. Hence, modeling quickly can become inaccurate and inefficient. The scope of the present paper is to innovate predictive modeling processes concerning the dynamics of real complex structures by means of linear modal analysis with the finite element method (FEM). The aim is to offer a transparent design catalog relating specific uncertainties to each model component in order to achieve error prevention for engineers dealing with comparable systems. A complex system is simplified and investigated for different levels of detail. Only after the model uncertainties for one level of detail are obtained, the next level of complexity is approached. For each level of detail, the vibrating monolithic structures and assemblies are examined and sensitive influencing parameters are subjected to uncertainty quantification with respect to experimental results. The eigenfrequencies and mode shapes are obtained from an experimental modal analysis (EMA). Using the presented course of action for the validation process, the confidence interval of the numerical results is significantly enhanced compared to previous research.
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Citation
Langer, P., Hoppe, A., Guist, C., and Marburg, S., "From Theory to Three-Dimensional Finite Element Models: An Innovative Method for Validation," SAE Technical Paper 2018-01-1536, 2018, https://doi.org/10.4271/2018-01-1536.Data Sets - Support Documents
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References
- Oberkampf , W.L. , DeLand , S.M. , Rutherford , B.M. , Diegert , K.V. , and Alvin , K.F. Error and Uncertainty in Modeling and Simulation Reliability Engineering & System Safety 75 3 333 357 2002
- Achenbach , J. Wave Propagation in Elastic Solids Elsevier Science 2012 9780080934716
- Alvin , K. , Oberkampf , W. , Diegert , K. , and Rutherford , B. Uncertainty Quantification in Computational Structural Dynamics: A New Paradigm for Model Validation 16th International Modal Analysis Conference 2 1191 1198 1998
- Balci , O. Credibility Assessment of Simulation Results: The State of the Art Proceedings of the Eastern Simulation Conference Orlando, FL 1987 1 8
- Bittner , U. 2012
- Ewins , D. Exciting Vibrations: The Role of Testing in an Era of Supercomputers and Uncertainties Meccanica 51 12 3241 3258 2016
- Fernlund , I. A Method to Calculate the Pressure between Bolted or Riveted Plates Chalmers University Books Gumperts 1961
- Fukuoka , T. , Nomura , M. , and Sugano , N. Experimental Investigation and Finite Element Analysis of the Free Vibration Problem of Bolted Joint by Taking Account of Interface Stiffness Journal of Environment and Engineering 4 1 101 111 2009
- Geisler , J. 2010
- Han , S.M. , Benaroya , H. , and Wei , T. Dynamics of Transversely Vibrating Beams Using four Engineering Theories Journal of Sound and Vibration 225 5 935 988 1999
- Hislop , J. , Krautkrämer , J. , Krautkrämer , H. , Grabendörfer , W. et al. Ultrasonic Testing of Materials Berlin, Heidelberg Springer 2013 9783662106808
- Hoppe , K.-A.H. 2016
- Kragelski , I. , Dobychin , M. , and Kombalov , V. Friction and Wear - Calculation Methods Pergamon Press 1982
- Labuschagne , A. , van Rensburg , N. F. J. , and van der Merwe , A. J. Comparison of Linear Beam Theories Mathematical and Computer Modelling 49 1-2 20 30 2009
- Langer , P. , Jelich , C. , Hoppe , A. , Schneider , A. et al. Finite Element Model for Modal Analysis of Engine-Transmission Unit: Numerical and Experimental Investigations Chen , L. Tang , S.K. and INTER-NOISE Congress and Conference Proceedings Hong Kong 2017 3695 3706
- Langer , P. , Maeder , M. , Guist , C. , Krause , M. et al. More than Six Elements per Wavelength: The Practical Use of Structural Finite Element Models and their Accuracy in Comparison with Experimental Results Journal of Computational Acoustics 25 04 1750025 2017
- Langer , P. , Sepahvand , K. , Guist , C. , Bär , J. et al. Journal of Sound and Vibration 2018
- Langer , P. , Sepahvand , K. , Krause , M. , and Marburg , S. Experimentally Uncertainty Quantification in Numerical and Analytical Beam Models Inter-Noise Melbourne, Australia October 14, 2014 2357 2366
- Langer , P. , Sepahvand , K. , and Marburg , S. Uncertainty Quantification in Analytical and Finite Element Beam Models Using Experimental Data Cunha , A. , Caetano , E. , Ribeiro , P. , and Müller , G. Proceedings of the 9th International Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal 2014
- Marburg , S. , Beer , H.-J. , Gier , J. , Hardtke , H.-J. et al. Experimental Verification of Structural-Acoustic Modelling and Design Optimization Journal of Sound and Vibration 252 4 591 615 2002
- Marshall , M. , Lewis , R. , and Dwyer-Joyce , R. Characterisation of Contact Pressure Distribution in Bolted Joints Strain 42 1 31 43 2006
- Mayer , M. Zum Einfluss von Fügestellen auf das dynamische Verhalten zusammengesetzter Strukturen Tönning Der Andere Verlag 2007
- Muhs , D. , Wittel , H. , Jannasch , D. , and Voßiek , J. Roloff/Matek Maschinenelemente: Normung Berechnung, Gestaltung-Lehrbuch und Tabellenbuch Springer-Verlag 2007
- Pfänder , J. 2016
- Sepahvand , K. , Marburg , S. , and Hardtke , H.-J. Stochastic Free Vibration of Orthotropic Plates Using Generalized Polynomial Chaos Expansion Journal of Sound and Vibration 331 1 167 179 2012
- Sevgi , L. Modeling and Simulation Concepts in Engineering Education: Virtual Tools Turkish Journal of Electrical Engineering and Computer Sciences 14 1 113 112 2006
- Smith , R.C. Uncertainty Quantification: Theory, Implementation, and Applications 12 Siam 2013
- Sullivan , T.J. Introduction to Uncertainty Quantification 63 Springer 2015
- VDI-Richtlinie 2230 Blatt 1: Systematische Berechnung hochbeanspruchter Schraubenverbindungen Berlin Beuth Verlag 2003