摘要
为分析波纹板结构在气云爆炸荷载下抗爆性能,减少爆炸事故中人员伤亡及财产损失,建立了基于Johnson-Cook模型和CONWEP控制方程的波纹结构数值仿真模型,并通过气体爆炸试验验证了仿真模型的准确性。通过调整波纹板厚度、坡深、波宽等参数,分析波纹结构在气体爆炸下动态响应规律。结果表明,波纹板变形量与波纹板厚度t、坡深h呈负相关,与波宽L 1、坡宽L 2呈正相关,其中,受厚度t的影响最为显著,坡深h次之,波宽L 1、坡宽L 2较小。研究结果可为高性能波纹结构抗爆设计提供技术支撑。
In order to analyze the anti-explosion performance of corrugated structure under gas cloud explosion load and reduce the casualties and property losses in explosion accidents,a numerical simulation model of corrugated structure based on Johnson-Cook model and CONWEP governing equation was established,and the accuracy of the simulation model was verified by gas explosion test.By adjusting the parameters of corrugated plate thickness,slope depth and wave width,the dynamic response of corrugated structure under gas explosion was analyzed.The results showed that the deformation of corrugated plate was negatively correlated with thickness t and slope depth h,and positively correlated with wave width L 1 and slope width L 2.Among them,the influence of thickness t was the most significant,followed by slope depth h,and wave width L 1 and slope width L 2 were less.The research results can provide technical support for the antiknock design of high-performance corrugated structures.
作者
李均海
Li Junhai(State Key Loboratory of Chemical Safety,Shandong,Qingdao,266104;SINOPEC Research Institute of Safety Engineering Co.,Ltd.,Shandong,Qingdao,266104)
出处
《安全、健康和环境》
2024年第3期33-40,共8页
Safety Health & Environment
基金
国家科技部项目(2021YFC3001204),化工园区区域性爆炸计算预警及多要素抗爆能力提升技术研究。
关键词
波纹板
抗爆性能
气云爆炸
动态响应
方差分析
数值仿真模型
corrugated plate
antiknock performance
gas cloud explosion
dynamic response
variance analysis
numerical simulation model
