电磁脉冲加载法在圆柱壳塑性屈曲研究中的应用

利用电磁脉冲加载法，进行了圆柱壳在径向脉冲载荷下的塑性动力屈曲实验，对脉冲磁场加载原理、电流测试方法、载荷计算及趋肤效应等问题进行了探讨。实验表明，电磁脉冲加载法具有载荷波形稳定、控制方便等特点，在加载的均匀性方面明显优于传统的爆炸加载法。

基于光纤振动传感技术的清管器定位研究

对天然气管道清管作业存在的跟踪定位偏差问题进行分析,发现清管器运行时与管壁产生明显的摩擦振动,尤其是管道接头、焊缝和拐点处。振动作用会传导至管道同沟敷设的光纤上,当光纤某处收到振动时,该处折射率发生变化,导致该处相位改变,将两个时刻的后向瑞利散射曲线相减即可检测和定位振动信号,基于相位敏感光时域反射原理,提出了采用分布式光纤振动传感实时跟踪定位的方法。经宣宁线齐河至长清至泰安段管道清管作业实测,定位性能良好,验证了方法的有效性。分布式光纤振动传感实时跟踪定位方法可实现清管器实时跟踪定位,降低清管器丢失卡堵造成管线停输的事故风险,对清管作业顺利完成具有一定借鉴意义。

Evaluation of Nuclear Electromagnetic Pulse （NEMP） Vulnerability on Cots Electronic Equipments

This study deals with a new evaluation method of nuclear electromagnetic pulse （NEMP） vulnerability on cots electronic equipments. The method consists in comparing electromagnetic compatibility （EMC） test severities to NEMP conducted stresses. The comparison uses five characteristic criteria of the induced stresses, calculated with an analytic method. The process is based on a software named ＂SUSIE＂ （in French： SUSceptibilite a I＇IEMN ＂Impulsion ElectroMagnttique d＇origine Nucl6aire Haute Altitude＂）. Today, only conducted stresses are analyzed. An evolution is planned in 2013 to determine the equivalent vulnerability of radiated stresses and to validate the software.

STUDY AND APPLICATION OF COMPOSITE PULSE JIGGING THEORY IN CHINA

This paper introduced the recent study and application of composite pulse jigging theory in China. The paper has shown many features of the composite pulse jigging cycle with the experiment data from the site jigs.