Study on influence factors of submerged floating tunnel tether-tube parametric resonance

3rd International Conference on Advances in Energy, Environment and Chemical Engineering

能源学;生态环境科学;化学工业

Sun, Shengnan^1 ; Su, Zhibin^1 ; Liu, Xin^1

School of Architecture and Civil Engineering, Liaocheng University, Liaocheng, Shandong

252059, China^1

关键词: Damping ratio;    Frequency ratios;    Parametric resonance;    Resonance phenomena;    Submerged floating tunnel;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/69/1/012171/pdf
DOI  :  10.1088/1755-1315/69/1/012171

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Considering the effect of tether sag of situation, submerged floating tunnel tether-tube parameter resonance mathematical model and the nonlinear equations of motion are built. Then the equation method is simplified by the Galerkin method, meanwhile, MATLAB is used to solve this equation. The parameter resonance which can occur between the constraints is analyzed. The results show that frequency ratio between submerged floating tunnel tether and tube is in an area. Parameter resonance phenomenon occurs among them. Under the condition of tether damping ratio unchanged, if the damping ratio of tube is increased, their resonant parameters of probability may be reduced to some extent.