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요약정보
船舶尾部伴流对螺旋桨应力变形与振动的分析 / Analysis of stress,deformation and vibration of propeller caused by wake
Resource Type
Academic Journal
Authors
刘世伟
;
曹吉胤
;
刘海云
;
马晶宁
;
LIU Shi-wei
;
CAO Ji-yin
;
LIU Hai-yun
;
MA Jing-ning
Source
舰船科学技术 / Ship Science and Technology
. 44(6):54-59
Subject
螺旋桨;伴流;应力;振动
Language
Chinese
ISSN
1672-7649
Online Access
Find it @ DONGA
초록
针对船舶螺旋桨在航行过程中,受到周围水域复杂伴流的影响,使螺旋桨受力不均,导致螺旋桨的结构应力变形增大,进而发生螺旋桨断裂甚至失效的现象,以某散货船为例,用有限元分析方法对其进行双向流固耦合仿真.利用瞬态仿真模拟螺旋桨周围水域的流线变化,分析螺旋桨的应力与变形、振动以及模态变化,并且通过控制变量法,将有无伴流存在的分析结果进行对比,研究伴流对螺旋桨受力变形的影响程度.研究结果表明,不均匀的伴流会极大地改变螺旋桨周围水域的流线运动状态,使得其受力变形更加不均匀,增大其振动变形状态.
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