Theoretical Analysis of Shock-mitigating Device to Increase the Resistance of Protective Door

宋春明; 王明洋; 刘斌

doi:10.13409/j.cnki.jdpme.2011.06.017

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Theoretical Analysis of Shock-mitigating Device to Increase the Resistance of Protective Door

更新时间：2025-12-11

- Theoretical Analysis of Shock-mitigating Device to Increase the Resistance of Protective Door
- Vol. 31, Issue 6, Pages: 700-703+709(2011)
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- DOI：10.13409/j.cnki.jdpme.2011.06.017
  CLC： 328
- Published：2011
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[1]宋春明,王明洋,刘斌.减震装置提高防护门抗力的理论分析[J].防灾减灾工程学报,2011,31(06):700-703+709.

宋春明, 王明洋, 刘斌. Theoretical Analysis of Shock-mitigating Device to Increase the Resistance of Protective Door[J]. 2011, 31(6): 700-703+709.
[1]宋春明,王明洋,刘斌.减震装置提高防护门抗力的理论分析[J].防灾减灾工程学报,2011,31(06):700-703+709. DOI： 10.13409/j.cnki.jdpme.2011.06.017.

宋春明, 王明洋, 刘斌. Theoretical Analysis of Shock-mitigating Device to Increase the Resistance of Protective Door[J]. 2011, 31(6): 700-703+709. DOI： 10.13409/j.cnki.jdpme.2011.06.017.

摘要

在端部采用减震装置可提高防护门的抗力

而且该减震装置会影响防护门的振动特性和动力响应

因此对其在爆炸载荷作用下的动态响应分析非常重要。本文建立了具有减震装置防护门的计算模型

推导出了结构在爆炸荷载作用下的解析计算式

分析了化爆和核爆荷载作用下减震装置对振动的影响规律。结果表明

由弹性支承和阻尼器组成的减震装置可以明显降低结构的动力系数

从而提高防护门的抗力

但提高的效果与弹性支承的刚度、载荷作用时间的长短以及振动衰减的程度相关。

Abstract

Shock-mitigating device adopted at both ends can improve the resistance of protective door

and the device has great effect on vibration characteristics and dynamic responses of the door

Therefore

it is necessary to study the dynamic responses of the structure to explosion loading.The computational model of the protective door with shock-mitigating device is established

and the analytical expressions of the structure under explosion loadings are deduced.The effects of shock-mitigating device on dynamic responses to loads induced by chemical explosion and nuclear explosion are also studied.The analysis shows that shock-mitigating device consisting of elastic support and damping support can make the dynamic coefficient decrease obviously.Therefore

the bearing capacity to resist explosive loads can be relatively increased

but the effectiveness lies on the stiffness of elastic support

actuation duration of explosion loading and vibration damping.

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references

柔性动边界梁的弹塑性动力响应分析 [J]. 宋春明,王明洋,王德荣. 工程力学 . 2008(12)

爆炸荷载作用下弹性与阻尼支承梁的动力响应 [J]. 方秦,杜茂林. 力学与实践 . 2006(02)

振动力学[M]. 国防工业出版社 , 谢官模, 2007

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