通载带式浮桥的运动响应研究——约束多浮体计算模型  

Research on Dynamic Response of Ribbon Floating Bridge under Moving Loads ~Restricted Multi Floating Bodies Model

作　　者：韦忠瑄[1] 沈庆[1] 江召兵[1] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《工兵装备研究》2007年第4期12-15,共4页Engineer Equipment Research

摘　　要：基于多体系统动力学理论，用拉格朗日乘子法给出了浮桥运动的动力学方程，将水视为粘性不可压缩流体，通过浮桥和水接触面的相互作用力和形状变化，建立了带式浮桥系统流固耦合的力学模型，通载带式浮桥运动响应的数值计算与测试值的比较，验证了模型的可行性和正确性。Based on the multi-body dynamics theory, the dynamic equation of floating bridge is established by using the Lagrange multiplier. Through evaluating the interaction forces between floating bridge and water, and the changing of the vertical displacement of the floating bridge, the fluid-solid coupling dynamic model of ribbon floating bridge is established by regarding water as the incompressible viscous fluid. The calculating values of the dynamic response of floating bridge under moving loads are compared with the testing ones to prove the feasibility and correctness of the model.

关 键 词：带式浮桥 流固耦合 多体系统 

分 类 号：U656.1[交通运输工程—港口、海岸及近海工程]