龙卷风风场下水面船舶倾覆的力学机理研究

贺沅平 1; 危卫 2; 顾兆林 1

doi:10.7652/xjtuxb201605018

您当前的位置：

首页 >

文章列表页 >

龙卷风风场下水面船舶倾覆的力学机理研究

更新时间：2025-05-08

- 龙卷风风场下水面船舶倾覆的力学机理研究
- Aerodynamic Forces on a Ship in Tornado and Their Impact on Ship Capsizing
- 西安交通大学学报 2016年50卷第5期页码：120-124+145
- 作者机构：
  
  西安交通大学人居环境与建筑工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2015-11-03。作者简介: 贺沅平(1991—),女,博士生;顾兆林(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(40675011,10872159)
- DOI：10.7652/xjtuxb201605018
  中图分类号： O355;U661.3
- 网络首发：2016-05-10，
  
  纸质出版：2016
- 稿件说明：
移动端阅览
贺沅平 1, 危卫 2, 顾兆林 1. 龙卷风风场下水面船舶倾覆的力学机理研究[J]. 西安交通大学学报, 2016,50(5):120-124+145.

Aerodynamic Forces on a Ship in Tornado and Their Impact on Ship Capsizing[J]. 2016, 50(5): 120-124+145.
贺沅平 1, 危卫 2, 顾兆林 1. 龙卷风风场下水面船舶倾覆的力学机理研究[J]. 西安交通大学学报, 2016,50(5):120-124+145. DOI： 10.7652/xjtuxb201605018.

Aerodynamic Forces on a Ship in Tornado and Their Impact on Ship Capsizing[J]. 2016, 50(5): 120-124+145. DOI： 10.7652/xjtuxb201605018.

摘要

为研究龙卷风风场对船舶稳定性的影响

利用龙卷风风场模型分析了船舶风荷载特性及其随方位的变化规律。龙卷风风场模型在柱坐标系下形成并假定流场定常

龙卷风的漏斗外形轴对称

且从外围到中心的气压降主要由切向风速产生的离心力来平衡; 以“东方之星”船舶简化模型为例

计算了船舶的最小倾覆力矩

并从船舶航向以及船舶位于龙卷风风场的不同径向位置分析了船舶倾覆的力学条件。研究结果表明:船舶航向垂直于龙卷风的径向时

船两侧负压差大于最小倾覆力矩

从而导致船舶倾覆; 船舶航向平行于龙卷风的径向时

船舶受高速风的冲击而发生倾覆

倾覆方向与龙卷风的切向一致; 船舶航向与龙卷风风场径向成任意夹角时

倾覆取决于船舶相对于龙卷风中心的位置、龙卷风切向风速以及船舶航速。该结果可为船舶设计及龙卷风预警研究提供参考。

Abstract

To investigate the impacts of tornado wind field on ship stability

the characteristics of wind loads on the ship and ship capsizing law are analyzed. A tornado wind field model is constructed on cylindrical coordinates

the flow field of the tornado is supposed as steady and the tornado funnel as axisymmetric in its shape. The air pressure drop from the tornado periphery to its center is assumed to be mainly balanced by the centrifugal force derived from tangential velocity of tornado. Taking simplified Eastern Star ship model as an example

the minimum overturning moment of the suffering ship is evaluated

and the tornado's aerodynamic impact on ship capsizing is analyzed considering the vessel sailing directions and different radial positions of the field where the vessel is located. According to the results

when sailing direction is perpendicular to the radial direction of the tornado

the ship capsizes as the pressure difference between both ship sides gets greater than its minimum overturning moment; when sailing along the radial direction

mainly due to dynamic impacts of high-speed incoming wind

the ship capsizes in the tangential direction of the tornado; when the ship sails in any direction

whether the ship capsizes depends on the ship's radial distance from the tornado center

the tangential wind speed of the tornado and the ship velocity. This results may provide a reference for ship design and tornado-warning research.

关键词

Keywords

references

WEN Y K. Dynamic tornadic wind loads on tall buildings [J]. Journal of the Structural Division, 1975, 101(1): 169-185.

DUTTA P K, GHOSH A K, AGARWAL B L. Dynamic response of structures subjected to tornado loads by FEM [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2002, 90(1): 55-69.

SAVORY E. Modelling of tornado and icroburst-induced wind loading and failure of a lattice transmission tower [J]. Engineering Structures, 2001, 23(4): 365-375.

MCDONALD J R, MEHTA K C, MINOR J E. Tornado-resistant design of nuclear power-plant structures [J]. Nuclear Safety, 1973, 15(4): 432-439.

SPARKS P R. On the failure of single-story ood-framed houses in severe storms [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1988, 29(1/2/3): 245-252.

宋拓, 吕令毅. 龙卷风作用核电常规岛主厂房随机响应及结构体系可靠度 [J]. 建筑结构学报, 2014, 35(5): 128-134.

SONG Tuo, LÜ Lingyi. Stochastic response and structure reliability of nuclear power plant main house under tornado loads [J]. Journal of Building Structure, 2014, 35(5): 128-134.

徐枫, 肖仪清, 李波, 等. 龙卷风风场特性的CFD数值模拟 [J]. 空气动力学学报, 2013, 31(3): 350-370.

XIAO Feng, XIAO Yiqing, LI Bo, et al. CFD numerical simulation of wind field characteristics of tornado [J]. Acta Aerodynamica Sinica, 2013, 31(3): 350-370.

汤卓, 张源, 吕令毅. 龙卷风风场模型及风荷载研究 [J]. 建筑结构学报, 2012, 33(3): 104-105.

TANG Zhuo, ZHANG Yuan, LÜ Lingyi. Study on tornado model and tornado-induced wind loads [J]. Journal of Building Structure, 2012, 33(3): 104-105.

刘红. 船舶原理 [M]. 上海: 上海交通大学出版社, 2009.

方学智. 船舶设计原理 [M]. 北京: 清华大学出版社, 2014: 138-176.

刘亚冲, 胡安康, 韩凤磊, 等. 超大型集装箱船风载荷系数研究 [J]. 武汉理工大学学报, 2014, 36(4): 80-85.LIU Y C, HU A K, HAN F L, et al. Research on wind load coefficients of large scale container ship [J]. Journal of Wuhan University of Technology, 2014, 36(4): 80-85.

陆冠东. 列车强侧向风力作用下的倾覆力矩 [J]. 铁道车辆, 2008, 46(9): 9-10.

LIU Guandong. Capsizing moment of train under strong lateral wind [J]. Railway Vehicle, 2008, 46(9): 9-10.

JOSEPH E T, DANIELLE N, BRENDA P, et al. Tornadoes, social science, and the false alarm effect [J]. Weather Climate and Society, 2015, 7(4): 333-351.

SPYROU K J, THOMPSON J M T. The nonlinear dynamics of ship motions: a field overview and some recent developments [J]. Philosophical Transactions: Mathematical, Physical and Engineering Sciences, 2000, 358(1771): 1735-1760.

李乃一,彭宗仁,刘鹏.直流电压下环氧浇注绝缘子的表面电场分析.2016,50(2):73-79.[doi:10.7652/xjtuxb201602013]

李远洁,江凯,刘子龙.低温增强型非晶铟镓锌氧薄膜晶体管特性研究.2015,49(12):1-5.[doi:10.7652/xjtuxb201512 001]

李春艳,高忠权,刘兵,等.电极位置与电极面积对离子电流影响的试验研究.2015,49(7):55-60.[doi:10.7652/xjtuxb 201507010]

马利娥,梅雪松,李彦锋,等.薄膜传输系统导向辊的力学特性分析.2014,48(11):86-91.[doi:10.7652/xjtuxb201411 015]

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

EBSILON软件在热电联产系统优化中的应用综述

水蒸气掺混对氨裂解气旋流燃烧与排放特性的影响研究

不同板叠材料热声热机能量转换过程数值模拟研究

张角凹坑气膜孔对双层壁气膜冷却特性的影响

超临界水异常区域热力学特性研究