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Wave motion solution to free bending vibration of multi-span beam

WANG Zanzhi,HU Rucheng,ZHANG Peng,WU Huiqin,DENG Yu,YE Yanbing,HUANG Shibin,CHEN Jingbiao(Department of Civil Engineering,Guangxi University of Technology,Liuzhou 545006,China)  
Wave motion analysis method for continuous beam is established.By Fourier transform,the partial differential equations and boundary conditions in time domain presenting wave motion fields are changed into normal differential equations and corresponding boundary conditions in frequency domain.Then by inverse Fourier transform,the solution in frequency domain is transformed into time domain,thus the original solution in time domain is obtained.Finally,a specific example is demonstrated.
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