| 空气冲击波作用下肺部载荷特性数值模拟 |
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| 引用本文： | 巨圆圆,阮狄克,徐成,胡明,刘立洋,陈佳海,王静,李军,龙仁荣.空气冲击波作用下肺部载荷特性数值模拟[J].转化医学杂志,2018,7(1):49-53. |
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| 作者姓名： | 巨圆圆 阮狄克 徐成 胡明 刘立洋 陈佳海 王静 李军 龙仁荣 |
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| 作者单位： | 海军总医院骨科,海军总医院骨科,海军总医院骨科,海军总医院骨科,海军总医院骨科,海军总医院骨科,海军总医院骨科,海军总医院骨科,北京理工大学爆炸科学与技术国家重点实验室 |
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| 基金项目： | 全军重点项目（BHJ14L011） |
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| 摘 要： | 目的分析空气冲击波作用下兔肺部载荷特性，为冲击波毁伤评估及其防护救治提供参考。方法建立兔胸部二维平面模型，利用ANSYS Autodyn有限元分析软件模拟90 g TNT装药爆炸，0.5 m爆炸距离处兔胸部的动态响应。结果在冲击波与兔胸部接触的局部区域，肺部压力首先由壁面压力波经肌肉、骨骼透射进入肺部产生；肺部其他区域的压力首先由骨骼中传播的应力波透射进入肺部产生。结论空气冲击波作用下，兔肺部载荷由壁面压力波的直接作用和骨骼变形运动、骨骼-肺界面反射及空穴效应的间接作用共同决定。
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| 关 键 词： | 空气冲击波 冲击伤 载荷特性 数值模拟 |
Loading characteristics of air shock wave on lung by numerical simulation |
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| Authors: | JU Yuanyuan RUAN Dike XU Cheng HU Ming LIU Liyang CHEN Jiahai WANG Jing LI Jun and LONG Renrong |
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| Institution: | Department of Orthopedic Surgery, Navy General Hospital, Beijing 100048, China,Department of Orthopedic Surgery, Navy General Hospital, Beijing 100049, China,Department of Orthopedic Surgery, Navy General Hospital, Beijing 100050, China,Department of Orthopedic Surgery, Navy General Hospital, Beijing 100051, China,Department of Orthopedic Surgery, Navy General Hospital, Beijing 100052, China,Department of Orthopedic Surgery, Navy General Hospital, Beijing 100053, China,Department of Orthopedic Surgery, Navy General Hospital, Beijing 100054, China,Department of Orthopedic Surgery, Navy General Hospital, Beijing 100055, China and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081,China |
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| Abstract: | ObjectiveThe loading characteristics of air shock wave on the lung of rabbit are analyzed, which may provide reference for the evaluation of blast injury and its prevention and treatment. MethodsA two dimensional plane model for the lung of rabbit is established, and its dynamic response to 90 g TNT explosive with a distance of 0.5 m is simulated by ANSYS Autodyn finite element analysis software. ResultsIn the local area where shock wave directly interacts with thorax,pulmonary pressure is covered by the stress wave which is transmitted from the wall surface compression wave through muscle and bone. The pulmonary pressure in other area is covered by the stress wave which is transmitted from that in the bone. ConclusionThe loading characteristics of air shock wave on the lung of rabbit include the direct action of the wall surface compression wave and the indirect action of the bone deformation,and the reflection from the interface of bone and lung as well as the cavitation effect. |
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| Keywords: | Air shock wave Shock injury Loading characteristics Numerical simulation |
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