中国舰船研究2016，Vol.11Issue(5)：55-62,77,9.DOI:10.3969/j.issn.1673-3185.2016.05.009
船体梁刚度对波激振动影响的比较研究
Comparative study of the effect of hull-girder stiffness on springing behaviors
汪雪良 1顾学康 1胡嘉骏1
作者信息
- 1. 中国船舶科学研究中心，江苏无锡214082
- 折叠
摘要
Abstract
With the large scale development trend, the lengths of ships are constantly increasing. As a re⁃sult, high strength steel is widely used due to the demand of lightweight design of ship structures. Hull gird⁃er of the ship, in particular, becomes much more flexible than those of small and medium-sized ships. This results in different characteristics of springing behaviors of ship structures when the ship travels on the sea. In this paper, a large engineering ship is taken as the research subject in order to study its low-and high-frequency wave induced load responses in waves. Two kinds of steel girders with different trans⁃verse-section moments of inertia are used to simulate original and changed stiffness in a segmented model. The 3D hydroelasticity theory is employed to predict responses of the ship in waves, and comparison analy⁃sis is also conducted between experimental and theoretical results. It is shown that springing behavior is prone to happen with low hull-girder stiffness, and continual springing behavior will result in serious fa⁃tigue damage to ship structures. The necessity of considering the hull-girder stiffness as an important pa⁃rameter in the structural optimization design of large ships is thus verified as the effect of hull-girder stiff⁃ness on springing behaviors cannot be neglected.关键词
船体梁/刚度/波激振动/模型试验/三维水弹性理论Key words
hull-girder/stiffness/springing/model test/3D hydroelasticity theory分类
交通工程引用本文复制引用
汪雪良,顾学康,胡嘉骏..船体梁刚度对波激振动影响的比较研究[J].中国舰船研究,2016,11(5):55-62,77,9.
