单艘渔船港内艏艉双锚锚泊泊稳条件试验研究港口海岸及近海工程专业论文.docxVIP

单艘渔船港内艏艉双锚锚泊泊稳条件试验研究Experimental 单艘渔船港内艏艉双锚锚泊泊稳条件试验研究 Experimental Research on Security Anchoring Conditions of Bow-stern Mooring of Single Fishing-boat in Harbor Abstract The study of security anchoring conditions can ultimately come down to figuring out the anchor rope tensions and motion responses of boats berthing inside the harbor constructions as well as its surrounding waters．It iS critical to conduct scientific research on security anchoring conditions of fishing-boat in harbor,and its dynamic response characteristics based on the external environment load．Above research will effectively promote processes including verifying the current standard values ofpermissible wave height in harbor,as well as designing and constructing the offshore engineering、丽th fishing boat as a main ship type． This P印er carried out a research on the mooring condition of bow-stem double mooring fishing—boat within port．A three—dimensional physical model was used for the experimental simulation，and the 275HP trawler was selected as a representative．The simulation results can be similarly concluded form both regular and irregular wave，and show that under load conditions with different combinations ofwave．wind and flow,measured values including bow and stem anchor rope tensions and the particular motion component demonstrate increased along with wave height，varied according to the law ofresonance changes when the wave period approaches the rolling period of boat，and increased along with the loading incident angle． Besides，谢t11 all the other conditions fixed，the anchor rope tensions of half_load fishing．boat appeared to be higher than those under unload condition，tensions with mooring water depth of h=4m were higher than those、丽t11 h=6m．Both load condition and mooring water depth did not have much impact on the relatively particular motion component．Based on the simulation result， this paper demarcated the referential range of mooring admissible limitation of fishing—boat in harbor,and