防灾减灾工程学报2011，Vol.31Issue(6)：700-703,709,5.
减震装置提高防护门抗力的理论分析
Theoretical Analysis of Shock-mitigating Device to Increase the Resistance of Protective Door
摘要
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.关键词
防护门/动力响应/爆炸荷载/减震装置Key words
protective door/dynamic response/explosion loading/shock-mitigating device分类
数理科学引用本文复制引用
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(6):700-703,709,5.基金项目
国家自然科学基金项目(51008305)资助 （51008305）
