This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of Automobile Crash Responses Using Wavelets
Technical Paper
2002-01-0183
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Wavelets and wavelet packets are used to analyze automobile crash responses. On a wavelet basis, non-stationary and transient crash signals are decomposed into multiple time scales and segmented into piecewise stationary signals. A correlation analysis is then performed on the decomposed and segmented signals, in order to determine the relationship between the dynamic behaviors of different structural components. On a wavelet packet basis, a crash signal is decomposed in a best tree structure. The wavelet packet coefficients are then compressed based on the thresholds balancing the amount of compression and retained energy. This compression yields a simplified and parameterized representation of a crash signal, which can be employed, for instance, in the injury criterion calculation and sensitivity analysis. The crash responses of a full frontal impact test are analyzed.
Recommended Content
Technical Paper | Development and Validation of Side Impact Sled Testing FE Model |
Technical Paper | Assessment Approaches of Automobile Frontal Crash Pulse |
Technical Paper | Human Shoulder Response to High Velocity Lateral Impact |
Authors
Topic
Citation
Cheng, Z., "Analysis of Automobile Crash Responses Using Wavelets," SAE Technical Paper 2002-01-0183, 2002, https://doi.org/10.4271/2002-01-0183.Also In
References
- Cheng, Z.Q. Thacker, J.G. Sieveka, E.M. Reagan, S.W Pilkey, W.D. Crandall, J.R. Experience of Modification and Validation of a Finite Element Automobile Crash Model Finite Element in Analysis and Design 37 2001 843 860 2001
- Bendat, J.S. Piersol, A. G. Engineering Applications of Correlation and Spectral Analysis John Wiley & Sons New York 1993
- Balandin, D.V Bolotnik, N.N. Pilkey, W.D. Optimal Protection From Impact, Shock, and Vibration Gordon and Breach Science Publishers NJ 2001
- Daubechies, I. Ten Lectures on Wavelets The Society for Industrial and Applied Mathematics Pennsylvania 1997
- Strang G. Nguyen T. Wavelets and Filter Banks Wellesley-Cambridge Press Massachusetts 1997
- Misiti, M. Misiti, Y. Wavelets Toolbox User's Guide The MathWorks, Inc. Massachusetts 1997
- Cheng Zhiqing Pilkey Walter D. Darvish Kurosh Hollowell William T. Crandall William T. Correlation Analysis of Automobile Crash Responses Using Wavelets Proceedings of 19 th International Modal Analysis Conference Kissimmee, Florida February 2001
- Bai Caiqing Morris R.A. Sieveka E. M. Crandall J. R. Cheng Zhiqing Walter Pilkey D. A Study of Standards for Child Restraint Systems for Impact Test International Journal of Crashworthiness 4 59 70 1999