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Parametric Vibration of Submerged Floating Tunnel Tether Under Random Excitation
Abstract:For the study of the parametric vibration response of submerged floating tunnel tether under random excitation, a nonlinear random parametric vibration equation of coupled tether and tube of submerged floating tunnel is set up. Subsequently, vibration response of tether in the tether-tube system is analyzed by Monte Carlo method. It may be concluded that when the tube is subjected to zero-mean Gaussian white noise random excitation, the displacement and velocity root mean square responses of tether reach the peak if the circular frequency of tube doubles that of tether; the displacernent and velocity root mean square responses of tether increase as the random excitation root mean square increases; owing to the damping force of water, the displacement and velocity root mean square responses of tether decrease rapidly compared with tether in air; increasing the damping of the tether or tube reduces the displacement and velocity root mean square responses of tether; the large-amplitude vibration of tether may be avoided by locating dampers on the tether or tube. 作者: Author: SUN Sheng-nan SU Zhi-bin 作者单位: School of Architecture and Civil Engineering, Liaocheng University, Liaocheng 252059, China 期 刊: 中国海洋工程(英文版) ISTICEISCI Journal: CHINA OCEAN ENGINEERING 年,卷(期): 2011, 25(2) 分类号: P756.2 Keywords: ocean engineering submerged floating tunnel tether parametric vibration random excitation 机标分类号: TU3 TH1 机标关键词: parametric vibration vibration response velocity root Gaussian white noise damping force Monte Carlo study reach set air 基金项目: This work is financially supported by the Promotive Research Fund for Excellent Young and Middle-aged Scientists of Shandong Province【Parametric Vibration of Submerged Fl】相关文章:
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