Numerical simulation of solitary wave interacting with gasbag-type floating bridge using the ALE method

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Lou, Yun-Feng^1^2 ; Ma, Zhi-Qiang^1^2 ; Chen, Rong^3 ; Jin, Xian-Long^1^2

School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai

200240, China^1

State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai

200240, China^2

704 Research Institute of China Shipbuilding Industry Corporation, Shanghai

200031, China^3

关键词: Arbitrary Lagrangian Eulerian method;    Calculation parameters;    Dynamic numerical modeling;    Fluid couplings;    Lagrangian methods;    Maximum bending moments;    Penalty function methods;    Structural response;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/5/052056/pdf
DOI  :  10.1088/1757-899X/563/5/052056

来源: IOP

【 摘 要 】

The dynamic numerical modeling theory and wave impact calculation method of gasbag type floating bridge (GTFB) were studied by using the multi-material Arbitrary Lagrangian-Eulerian (ALE) method and penalty function method. The air and seawater were described by the ALE method, the structure of floating bridge was described by the Lagrangian method and the coupling force between floating bridge and flow field was calculated by penalty function method. The floating bridge-fluid coupling models were established by HyperMesh software. Then, the models and calculation parameters were validated. The structural responses of the GTFB under solitary wave impacting were analyzed. The results show that the maximum contact force of hinge and maximum stress of gasbag appeared at the ends of the floating bridge, and the maximum bending moment of hinge appeared in the middle section.