不同能量载荷下球罐壁面响应的数值研究  

The Numerical Research of the Spherical Vessel Wall Response under Different Energy Load

作　　者：魏荣宽 关文玲[1] 高彤[1] 尹鑫伟 

机构地区：[1]天津理工大学环境科学与安全工程学院,天津300384

出　　处：《工业安全与环保》2016年第2期55-58,共4页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金(21206064)

摘　　要：容器爆炸碎片是造成化工企业多米诺效应的重要原因之一,研究不同能量载荷下容器壁面响应规律有助于分析事故原因及碎片形成机理。本研究以化工企业常用的储存容器球罐为研究对象,利用LS-DYNA软件对不同能量载荷下球罐壁面响应过程进行数值分析,研究表明球罐壁面在不同的爆炸载荷下出现不同的响应结果,因此可以根据容器响应后果来判定爆炸载荷的临界值;根据能量守恒可以对发生破裂的球形容器形成碎片过程中不同时刻的动能进行追踪,该结果可以为判定碎片发生多米诺效应的可能性提供参考。Structural fragments are one of the important reasons to cause domino effect in an industrial plant. The study of the vessel wall response law under different energy loading is conducive to analyze structural fragment formation mechanism and the causes of the industrial accident. This study selects spherical vessel as the research object which is commonly used in industrial plants,as a liquid or gaseous storage device. The spherical vessel wall response is simulated under different energy load by the LS- DYNA software. The results show that the vessel wall response is different under different explosion load,so the critical value of explosion load could be determined by the vessel wall response result and also the kinetic energy of structural fragment forming process can be traced by means of energy,providing references for determining a domino effect possibility caused by structural fragments.

关 键 词：壁面响应 球罐 能量载荷 动能 

分 类 号：TQ053.2[化学工程]