Dynamic response analysis of gasbag-type floating bridge subjected to a moving load
WANG Huan-huan1,2, Yang Xun 1,2, JIN Xian-long1,2
1.State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University., Shanghai 200240, China;
2.College of Mechanical Engineering, Shanghai Jiaotong University., Shanghai 200240, China
This paper investigates the dynamic response of a new gasbag-type floating bridge subjected to a moving load. The fluid is described by ALE method, the structure is described by Lagrangian method and the coupling process is achieved using penalty method. The feasibility and correctness of this method is verified by comparing with the experiment. Finite element model of floating bridge is established, and the equilibrium position is determined. Based on the initial state analysis, the process of truck driving on the floating bridge is simulated. The vertical displacements of middle plate under different load or speed are studied, and influence of gap between adjacent modules is also analyzed. Besides, the maximum principal stresses of gasbags in different time are analyzed, and the region of maximum stress is investigated. These results can provide valuable suggestions for the design of this type of bridges.
王欢欢1,2 杨勋1,2 金先龙1,2. 移动载荷作用下海岸囊式浮桥动力响应分析[J]. 振动与冲击, 2016, 35(14): 202-208.
WANG Huan-huan1,2, Yang Xun 1,2, JIN Xian-long1,2. Dynamic response analysis of gasbag-type floating bridge subjected to a moving load. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(14): 202-208.
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