不同爆炸冲击震动输入对整体隔震系统隔震效果的影响  

Effect of different explosion or shock seismic inputs on efficiency of a whole vibration-isolating system

作　　者：杜建国[1] 谢清粮[1] 冯进技[1] 李利莎[1] 

机构地区：[1]总参谋部工程兵科研三所,河南洛阳471023

出　　处：《爆炸与冲击》2010年第3期276-282,共7页Explosion and Shock Waves

基　　金：中国博士后科学基金项目(200902700)

摘　　要：采用已获得国家实用新型专利技术的鼓形钢丝绳隔震器对2层钢框架结构进行整体隔震,在隔震系统一定的情况下,对其输入形式统一的爆炸冲击信号,利用有限元数值模拟其隔震效果。通过改变输入加速度信号的主脉宽和幅值,研究了爆炸冲击信号的主脉宽和幅值对整体隔震结构的隔震率的影响,从而加深对整体隔震系统的认识,有利于促进整体隔震技术的研究,对工程实践具有指导意义。A drum-shaped steel wire rope isolator was applied to a two-floor steel construction to achieve a whole vibration-isolating system. Numerical simulation was carried out by the finite element method to explore the vibration-isolating efficiency of the achieved system input by explosion or shock signals with uniform forms. By changing the primary pulse duration and peak value,the vibration-isolating ratio was calculated to investigate the influences of the primary pulse duration and peak value on the vibration-isolating ratio. It is helpful to understand the vibration-isolating mechanism and develop vibration-isolating research.

关 键 词：爆炸力学 隔震率 爆炸冲击信号 整体隔震 主脉宽 幅值 

分 类 号：O383.3[理学—流体力学]