NUMERICAL SIMULATION FOR RADICAL SUPPORT STRUCTURE OF LNG FUEL TANK UNDER IMPACT LOAD

MA HanYang; DONG JinShan; FAN Sen; ZHAI XiaoChen; WANG JianJun

doi:10.16579/j.issn.1001.9669.2018.05.022

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NUMERICAL SIMULATION FOR RADICAL SUPPORT STRUCTURE OF LNG FUEL TANK UNDER IMPACT LOAD

更新时间：2022-09-22

- NUMERICAL SIMULATION FOR RADICAL SUPPORT STRUCTURE OF LNG FUEL TANK UNDER IMPACT LOAD
- Journal of Mechanical Strength Vol. 40, Issue 5, Pages: 1157-1162(2018)
- 作者机构：
  
  1. 南京工业大学机械与动力工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2018.05.022
  CLC：
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MA HanYang, DONG JinShan, FAN Sen, et al. NUMERICAL SIMULATION FOR RADICAL SUPPORT STRUCTURE OF LNG FUEL TANK UNDER IMPACT LOAD. [J]. 40(5):1157-1162(2018)
DOI：

MA HanYang, DONG JinShan, FAN Sen, et al. NUMERICAL SIMULATION FOR RADICAL SUPPORT STRUCTURE OF LNG FUEL TANK UNDER IMPACT LOAD. [J]. 40(5):1157-1162(2018) DOI： 10.16579/j.issn.1001.9669.2018.05.022.

摘要

冲击载荷作用下液化天然气(LNG)燃料罐环氧玻璃钢径向支撑结构能够承受较大的压缩应力,但是难以承受垂直铺层方向的拉伸应力以及层间的剪切应力,合理的布管方位可以有效的保证玻璃钢的支撑能力。基于此,采用单向流固耦合方法,运用Ansys模拟玻璃钢的受力情况,研究不同的布管角度对玻璃钢的受力影响,从而获得了玻璃钢受力随布管角度变化的关系。通过切应力,径向拉应力和Hoffman强度理论校核得出最佳的布管方位为上部布管角度30°、下部布管角度60°。对于确保LNG燃料罐的运行安全,具有重要的参考价值。

Abstract

The radial structural support made of epoxy FRP（ fiber reinforced plastic） of LNG fuel tank bears considerable compressive stress under impact load. However,it is hard to bear out of plane tensile stress and interlaminar shear stress. Thus,reasonable installation angle of pipes effectively guarantees the support ability of the epoxy FRP pipes. Based on it,the commercial finite element codes ANSYS with the method of fluid-structure coupling was used to stimulate the force condition of the epoxy FRP pipes,the correlation between the force of epoxy FRP pipes and installation angle of pipes was obtained. According to strength check of shear stress,radical tensile stress and the failure theory of Hoffman,the optimal installation angle of upper pipes was 30° and 60° of below the pipes. This study had an important reference value for safe operation of LNG fuel tank.

关键词

LNG燃料罐环氧玻璃钢流固耦合布管角度

Keywords

LNG fuel tankEpoxy FRP pipesFluid-structure couplingAngle of pipes

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