The numerical solution of equation of motion using B-spline wavelet
Publish place: 4th International Conference on Seismic Retrofitting (Earthquake Engineering and new Technology on Retrofitting
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICCT04_119
تاریخ نمایه سازی: 7 مرداد 1392
Abstract:
Wavelets are mathematical functions that cut up data into different frequency components, and then study each component with a resolution matched to its scale. Wavelets were developed independently in the fields of mathematics, quantum physics, electrical engineering, and seismic geology. Interchanges between these fields during the last ten years have led to many new wavelet applications such as image compression, turbulence, human vision, radar, and earthquake prediction. In this paper, we introduce a procedure using B-spline wavelet basis functions to solve dynamic equation of motion. In the proposed approach, a straightforward formulation was derived from the approximation of the displacement function of the system with B-spline wavelet basis. In this way, B-spline wavelet matrix is derived and applied in dynamic analysis. The validity and effectiveness of the proposed method is verified with several examples. The results were compared with some of the numerical methods such as Haar wavelet, Duhamel integration and Newark (linear acceleration).
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Authors
N Sadeghpour
Graduate Student of Civil Engineering, Department of Civil Engineering, university of Kerman
S Shojaee
Assistant Professor, Department of Civil Engineering, university of Kerman, Kerman, Iran
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