Received:December 06, 2014  Revised:June 17, 2015
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DOI:10.7511/jslx201603003
KeyWord:stayed cables  mode  nonlinear dynamic  geometrical nonlinearity  numeric calculation
     
AuthorInstitution
王涛 西南科技大学 土木工程与建筑学院, 绵阳
沈锐利 西南交通大学 土木工程学院, 成都
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Abstract:
      According to the theory of cable dynamic,a large amplitude nonlinear dynamic function of the cable with displacement excitation at the end point was deduced by considering the relations between different order modes of nonlinear vibration in cable.The influence of different sag-span ratio on vibration characteristics of the cable was discussed based on the parameters of a real cable.A numerical result based on cable nonlinear dynamic function was calculated by Runge-Kutta method,proved the reliability of the theoretical model,by comparing with the result of nonlinear FEM dynamic time-history integral.