含芳纶织物增强内衬复合材料气囊的静态变形过程实验研究与数值模拟

Experimental research and numerical simulation on static deformation of gasbag with textile reinforced composite lining

为了研究含织物增强内衬复合材料气囊的静态变形过程,针对该气囊的材料特性设计了静态实验平台,采用向囊内充入高压气体的方式对气囊膨胀变形过程进行实验研究,并使用LS-DYNA有限元分析软件对气囊膨胀过程进行建模,然后对整个实验过程进行数值模拟。根据实验结果分析了该气囊充气膨胀变形情况及变形规律,获得了气囊膨胀高度、囊内容积和压力随时间的变化情况,实验数据和数值模拟结果基本一致。

In order to study the static deformation process of gasbag with textile reinforced composite lining,this paper designed an experiment platform according to the performance of this kind of gasbag.Firstly,loaded high pressure gas into gasbag,then researched on the deformation process of gasbag.Secondly,used LS-DYNA software,for finite element analysis,to build model for gasbag inflation,then did numerial simulation for the whole inflation process.According to the experiment result,analyse the change of inflation transformation and the deformation law of the gasbag,and get time-dependent changes of height,volume and pressure of the inflated gasbag.Experiment data is basically consistent with the result of numerial simulation.