中国舰船研究2016，Vol.11Issue(4)：14-21,8.DOI:10.3969/j.issn.1673-3185.2016.04.003
江海直达船艏部结构入水砰击试验
Experimental investigation on the slamming load of the flat bow of a sea-river link container ship
摘要
Abstract
Slamming phenomenon is a transient process,generating a large impact pressure within a very short duration,which could cause fatigue or deformation of the local structure,even severe structural failure or collapse. Due to the limitation and restrictions on the inland waterway,the new designed sea-river linked ship has a more flat and little draught ship type,which would rise more serious slamming problems when the ship sails from the river into the sea. The slamming load conventionally are investigated within the simpli?fied water entry theories and experiments of wedges and plates. Respect to the flat blunt bow,these theories and experimental methods could not predict the slamming pressure well. In the present paper,a three di?mensional wooden model of the bow was adopted,and a series of free-fall water entry experiments with dif?ferent heights and impact angles were carried out. The slamming pressure and its distributions of the bow of a new sea-river linked ship were obtained,as well as the slamming pressure regression formulas based on the experimental results. In the meanwhile,the air cushion was found between the bottom and the water sur?face in the case of impact angle α<5°,and could postpone and reduce the slamming peak pressure.关键词
江海直达船/砰击载荷/入水试验/空气垫Key words
sea-river linked ship/slamming load/free fall water entry experiment/air cushion分类
交通工程引用本文复制引用
彭晟,吴卫国,夏子钰..江海直达船艏部结构入水砰击试验[J].中国舰船研究,2016,11(4):14-21,8.基金项目
工信部高技术船舶项目 （）
