柔性头颅模型撞击弹性板的动态响应分析

赵桂范; 谭惠丰; 杜星文

柔性头颅模型撞击弹性板的动态响应分析

哈尔滨工业大学复合材料研究所哈尔滨 150001

详细信息

作者简介:
赵桂范(1962- ),女,吉林省松源市人,副教授,博士(E-mail:zhaoguifan@vip.sina.com).

中图分类号: O322
计量
- 文章访问数: 1988
- HTML全文浏览量: 49
- PDF下载量: 694
- 被引次数: 0
出版历程
- 收稿日期: 2001-09-18
- 修回日期: 2002-10-10
- 刊出日期: 2003-03-15

Method of Model Analysis for Flexible Head Impacting With Elastic Plane

Research Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, P. R. China

摘要

摘要: 将柔性接触撞击过程处理为一个振动系统响应,采用机械网络图和求机械阻抗的方法解决了这一动态响应问题。柔性接触撞击模型考虑了头部的实际结构,把头部简化成撞击部位的头皮和头骨的质量、头部其它部分的头骨和脑液的质量、头部的刚度、头皮和脑液的阻尼系数组成的振动模型,弹性板也同样简化成由质量、刚度和阻尼构成的振动模型。采用求激振点速度阻抗的方法,得到了系统的动态撞击力、头部所受到的撞击加速度值,以及板的弹性变形、系统的固有频率等动态响应。实验数据与计算数据符合较好,证明方法是计算撞击作用下系统动态响应的实用方法,从而为头部撞击保护设计提供参考。
- 机械阻抗 /
- 动态响应 /
- 人头颅 /
- 撞击
Abstract: The process of head impacting with elastic plane was modeled as a response of vibrant system, and the method of mechanical network figure and mechanical impedance was used to resolve this problem.Based on its structure, head was viewed as a vibrant model, which concludes the masses of scalp and bone in the impact area, the masses in the other part of the head and the brain, the stiffness of the head, and the damper of the scalp and brain.Also the elastic plane was simplified as a vibrant model including mass, stiffness and damper.The models were transformed into mechanical girding figure at violent vibration poin.When the initial impact speed is known, the impact force of the system,the impact acceleration of the head, the elastic deformation of the plane and the fixed frequency of the system can be worked out by calculating the velocity impedance at the violent vibration point, the results fit the test data well, which proves that this method is available for the analysis of the dynamic response of the system under impact.
- mechanical impedance /
- dynamic response /
- head /
- impact

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参考文献(18)

[1]	Astuhiro S,Hirotoshi I,Robert K.Computer simulation of impact test for pedestrian protection[J].Vehicle Technology[Japan],1984,52(4):37-42.
[2]	Susan W,Enouen.The development of experimental head impact procedures for simulating pedestrian head injury[J].SAE Paper,1988,88(6):747-765.
[3]	Thomas F,Macl A,Johu F W.Pedestrian head impact against the central hood of motor vehicles-test procedure and results[J].SAE Paper,1990,2315(3):1729-1737.
[4]	Minoru S,Kzushige K,Hirotoshi I.Experimental consideration on head form impact test for pedestrian protection[J].SAE Paper,1993,0095(1):79-85.
[5]	Koji M,Janusz K,Toshiki A.Influences of vehicle shape on injuries in vehicle-pedestrian impact[J].JSAE Convention Proceedings,1999,30(4):55-60.
[6]	Koji M,Hideli Y,Janusz K.Relation between head and impact location in car-pedestrian impacts[A].In:JSAE Ed.Conference of Vehicle Technology[C].Yokohama:Japan Sven Glade H,1999,67-72.
[7]	Koji M,Hideki Y,Janusz K.The study of injury risk to the pedestrian head based on head form impact test[A].In:JSAE Ed.Spring Convention Proceedings[C].Yokohama:Japan Sven Glade H,1993,9-12.
[8]	Yasuki M,Tetsuo M,Toshiyuki A,et al.Development of FEM Models of Imp actors for Pedestrian Impact Test[A].In:JSAE Ed.Spring Convention Proceedings[C].Yokohama:Japan Sven Glade H,1999,9-12.
[9]	Akihiko A.Development of pedestrian dummy and body structure for reducing pedestrian injury[J].Vehicle Technology[Japan].1999,53(11):60-64.
[10]	Suguru Y,Norio I,Akio T,et al.Development of a body structure for reducing pedestrian injury[A].In:JSAE Ed.Spring Convention Proceedings[C].Yokohama:Japan Sven Glade H,1999,l-4.
[11]	Ruan J S,Khalil T,King A L.Human head dynamic response to side impact by finite element modeling[J].Journal of Biomechanical Engineering.1991,113(2):276-283.
[12]	Kazunari U,John W.Melvin.Finite element model study of head impact based on hybrid Ⅲ head acceleration:the effects of rotational and translational acceleration[J].Journal of Biomechanical Engineering,1995,117(2):319-328.
[13]	Ruan J S,Khalil T,King A L.Dynamic response of the human head to impact by three-dimensional finite element analysis[J].Journal of Biomechanical Engineering,1994,116(3):44-51.
[14]	Tsuyoshi Y.Application of Crash Simulation to Vehicle development[J].Vehicle Technology[Japan].1998,52(4):43-48.
[15]	杨,唐恒龄,廖伯瑜.机床动力学[M].北京:机械工业出版社,1983.
[16]	成祥生.应用板壳理论[M].济南:山东科学技术出版社,1989.
[17]	焦大宾,吴文周,雷刚,等.人头颅力学模型的试验分析[A].生物力学进展[C].北京:科技出版社,1993.
[18]	焦大宾,吴文周,杨桂通.人头颅受撞击作用的力学分析[J].中国生物医学工程学报,1992,13(9):141-149.