Mechanical Engineering and Technology
Vol.3 No.04(2014), Article ID:14523,5 pages
DOI:10.12677/MET.2014.34022

Structure Intensity Analysis of Oil Heater Support Based on Oil Tank Sloshing

Dongmin Liu, Lin Cai*, Yu Xin

China Ship Development and Design Center, Wuhan

Email: *cailin03313@163.com

Copyright © 2014 by authors and Hans Publishers Inc.

Received: Nov. 6th, 2014; revised: Nov. 30th, 2014; accepted: Dec. 7th, 2014

ABSTRACT

In order to study the oil tank sloshing effects on the structure of oil heater support, the flow field of oil tank under sloshing condition has been calculated using VOF multiphase mode. The CFD software FLUENT has been used for 2d explicit N-S equations and the first order implicit is used for time discretization scheme. The oil heart pressure under different time, amplitude and tank location has been discussed, then the flow force result is added to structure intensity analysis, and the oil heater support structure had been optimized. As a result, the maximum stress is reduced by 39.4%.

Keywords:FSI, Tank Sloshing, VOF

Email: *cailin03313@163.com

1. 引言

2. 数学模型

3. 流场计算结果及分析

Figure 1. Geometry description of oil heater fixed on ship structure

Figure 2. Main parameters of oil tank sloshing calculation

Figure 3. The force results of oil heater under different L

Figure 4. The force results of oil heater under different A and H

Figure 5. The force results of oil heater of L = 16.5 m, A = 10˚, T = 1 s

Figure 6. The phase interface change process of L = 16.5 m, A = 10˚, T = 1 s

4. 支座应力分析

(a)(b)

Figure 7. Geometry description of oil heater support: (a) Original; (b) Optimization

(a)(b)

Figure 8. (a) The equivalent stress distribution of original structure (x+); (b) The equivalent stress distribution of original structure (x−)

(a)(b)

Figure 9. (a) The equivalent stress distribution of optimization structure (x+); (b) The equivalent stress distribution of optimization structure (x−)

5. 结论

1. [1]   熊先巍, 韦灼彬, 项成安 (2012) 晃荡冲击影响下的潜艇运动实用稳定性分析. 哈尔滨工程大学学报, 3, 493-496.

2. [2]   刘桢兵 (2011) 基于VOF 法的液舱晃荡数值模拟及载荷计算. 重庆理工大学学报(自然科学), 3, 24-29.

3. [3]   Hirt, C.W. and Nichols, B.D. (1981) Volume of Fluid (VOF) method for the dynamics of free boundaries. Journal of Computational Physics, 39, 201-225.

NOTES

*通讯作者。