波浪载荷作用下船体大变形对尾轴承负荷的影响

Influence of Hull Large Deformation under Wave Load on Stern Tube Bearing Loading

基于有限元法,建立了波浪载荷计算模型和船体变形计算模型,以某大型集装箱船为对象,计算了满载、漂浮和压载3种典型工况下的船体变形。同时计算了波浪载荷作用下,计入浪向、浪高和波浪频率的船体变形。研究了漂浮、满载、压载和波浪载荷作用下的尾轴承负荷值,揭示了波浪工况对尾轴承负荷的影响规律及影响水平,对船舶尾轴承计算规范提出了建设性的意见和建议。

The calculation models of wave load and hull deformation are established based on finite element method(FEM). The large container ship as research object, its hull deformations are calculated under three typical conditions such as full, floating and ballast. At the same time, the hull deformations are calculated under wave load, height and frequency. The influence of wave conditions, full, floating, ballast and wave loads, on tail bearing load are discussed, revealing the influence law and influence level of wave condition on tail bearing load, that have constructive comments and suggestions on code for calculation of ship tail bearing.