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RESEARCH PRODUCT

SIGNAL ANALYSIS AND PERFORMANCE EVALUATION OF A VEHICLE CRASH TEST WITH A FIXED SAFETY BARRIER BASED ON HAAR WAVELETS

Hamid Reza KarimiKjell G. Robbersmyr

subject

Signal processingComputer scienceApplied MathematicsInformation processingHaarSafety barrierCollisioncomputer.software_genreVDP::Mathematics and natural science: 400::Mathematics: 410Test (assessment)WaveletAcceptance testingSignal Processingacceptance criteria collision safety barrier traffic safety wavelet safety barriersData miningVDP::Technology: 500::Materials science and engineering: 520computerSimulationInformation Systems

description

Author's version of an article published in the journal: International Journal of Wavelets, Multiresolution and Information Processing. Also available from the publisher at: http://dx.doi.org/10.1142/s0219691311003979 This paper deals with the wavelet-based performance analysis of the safety barrier for use in a full-scale test. The test involves a vehicle, a Ford Fiesta, which strikes the safety barrier at a prescribed angle and speed. The vehicle speed before the collision was measured. Vehicle accelerations in three directions at the center of gravity were measured during the collision. The yaw rate was measured with a gyro meter. Using normal speed and high-speed video cameras, the behavior of the safety barrier and the test vehicle during the collision was recorded. Based upon the results obtained, the tested safety barrier has proved to satisfy the requirements for an impact severity level. By taking into account the Haar wavelets, the property of integral operational matrix is utilized to find an algebraic representation form for calculate of wavelet coefficients of acceleration signals. It is shown that Haar wavelets can construct the acceleration signals well.

yearjournalcountryeditionlanguage
2011-01-01International Journal of Wavelets, Multiresolution and Information Processing
https://doi.org/10.1142/s0219691311003979