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《Ship Engineering》 2010-01
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Numerical Simulation of Coupled Motion of Trailing Suction Hoper Dredger and its Draghead

WANG Yuan-zhan,LU Kuan (Tianjin Port and Ocean Engineering Laboratory,School of Civil Engineering,Tianjin University,Tianjin 300072,China)  
Trailing Suction Hoper Dredger(TSHD) is widely-used equipment in construction of channel,underwater tunnel and waterway dredging engineering.Under deepwater and difficult circumstances,dredging accuracy control of TSHD is an important issue to be solved.Considering wind,wave,current,ship maneuvering force,seabed reacting force,swell compensator and its lag,as well as other combined influencing factors,a mathematical model of the coupled motion of TSHD and draghead is built,which is tested and verified by real-ship data.The effects of water depth,wind,wave and current,etc,on the TSHD-draghead motion are investigated through an example.The results provide the basis of the calculation of draghead motion as well as the control of overdepth and overwidth dredging.
【Fund】: 国家自然科学基金资助项目(50779043)
【CateGory Index】: U674.31
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