圆形泡沫铝复合结构救生舱碰撞及隔声性能分析  

Analysis of collision and sound insulation performance of circular section aluminum foam composite rescue cabin

作　　者：徐平[1] 范中海 于英华[1] 沈佳兴[1,2] XU Ping;FAN Zhong-hai;YU Ying-hua;SHEN Jia-xing(School of Mechanical Engineering,Liaoning Technical University,Fuxin 123000,Liaoning,China;Research Institute of Technology and Equipment for the Exploitation and Utilization of Mineral Resources,Liaoning Technical University,Fuxin 123000,Liaoning,China)

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000 [2]辽宁工程技术大学矿产资源开发利用技术及装备研究院,辽宁阜新123000

出　　处：《安全与环境学报》2022年第1期123-131,共9页Journal of Safety and Environment

基　　金：辽宁省教育厅科学技术研究(创新团队)项目(LT2010045)。

摘　　要：为提高救生舱的安全性和舒适性,以一种圆形救生舱的结构和参数为依据,设计了一种新型泡沫铝复合结构救生舱。通过有限元仿真方法研究了原型救生舱和泡沫铝复合结构救生舱的侧面、正面碰撞冲击性能和隔声降噪性能。将两种结构救生舱的分析结果进行对比分析,结果表明:泡沫铝复合结构救生舱的碰撞应力、碰撞变形及不同声源频率下舱体内空气介质的声压均有显著降低,表明泡沫铝复合结构救生舱具有更佳的安全性和舒适性。To improve the safety and comfort of the rescue cabin,a kind of aluminum foam composite structure rescue cabin is designed based on the structure and parameters of a traditional round section rescue cabin.The Explicit Dynamics module in Workbench software is used to study the maximum impact stress,the maximum impact deformation,and their distribution of the prototype rescue cabin and the aluminum foam composite rescue cabin under two situations of side and frontal collision respectively.The Hamonic Acoustics module in Workbench software is used to analyze the maximum sound pressure and sound pressure distribution of the internal media of the prototype rescue cabin and the aluminum foam composite structure rescue cabin.The maximum impact stress and maximum impact deformation of the two kinds of structure rescue cabin are analyzed by the contract method.The maximum sound pressure and sound pressure distribution of the internal media of the two kinds of structure rescue cabin under different sound source frequencies are compared and analyzed.The results show that during a side collision,the maximum deformation of the aluminum foam composite structure rescue cabin is reduced by 15.59%compared to the prototype rescue cabin;during a frontal collision,the maximum deformation and maximum stress of the aluminum foam composite structure rescue cabin are reduced by 60.06%and 7.94%compared to the prototype rescue cabin.The sound pressure of the aluminum foam composite rescue cabin increases slightly by 0.71%than that of the prototype refuge chamber at 1000 Hz,while at 125 Hz,250 Hz,500 Hz,2000 Hz,and 4000 Hz,the sound pressures of the aluminum foam composite rescue cabin are 8.16%,7.54%,5.85%,2.56%,7.79%lower than that of the prototype rescue cabin respectively.It is proved that the aluminum foam composite structure refuge chamber is safer and more comfortable.

关 键 词：安全工程 救生舱 泡沫铝 隔声性 

分 类 号：X936[环境科学与工程—安全科学]