摘要
针对某爆炸试验室的基础隔振系统的改造，首先提出了一种由钢丝绳和碟形弹簧组合而成的新型隔振器，给出了相应的基础隔振方案，并对组合隔振器进行了试验研究。然后，采用两自由度、有阻尼计算模型对隔振系统的动力反应进行非线性分析，研究了隔振层刚度和阻尼对隔振系统动力反应的影响，优化选择了隔振系统的有关参数。研究结果表明，当隔振层刚度约为110kN／mm．阻尼比为0．20～0．35时．隔振层动荷载接近最小，且其他动力反应满足设计要求。改造后的爆炸实验室的抗冲击能力比改造前提高了50％。
A new-style vibration isolator composed of wire rope isolators and dishing springs was proposed to reconstruct an explosive laboratory＇s base-isolated system. The relevant base-isolating projects were presented and the assembled isolators were tested. The dynamic responses of the isolated system were nonlinearly analyzed by two-freedom model with damp. The influence of both stiffness and damp of the isolated layer on the dynamical reaction of isolated system was studied. Some parameters of the isolation system were optimized. When the isolating layer＇s stiffness is about 10 kN/mm and the ratio of damper is 0.20-0.35, results show that the dynamic loads in the isolating layers are the minimum and the other dynamic reactions of the isolating system satisfy the design needs. The anti-shock capability of the reconstructed laboratory increases 50%.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2006年第2期145-149,共5页
Explosion and Shock Waves
关键词
爆炸力学
隔振系统
爆炸冲击
爆炸试验室
隔振器
mechanics of explosion
isolation system
blast shock
explosive laboratory
isolator
作者简介
熊世树（1965-），男，博士，副教授。Corresponding author： XIONG Shi-shu E-mail address： hustxish@163. com Telephone： 027-62667155
