压水堆松动件故障监测中水对碰撞波影响的研究  

Research of Collision Wave Influenced by Water in PWR Loose Parts Fault Monitoring

作　　者：周文娟[1] 陈廷相[1] 刘江[1] 杨修周[1] 

机构地区：[1]上海交通大学

出　　处：《核动力工程》1998年第6期509-513,共5页Nuclear Power Engineering

摘　　要：应用噪声分析技术，对模拟松动件的碰撞分别发生在空气中或水中，而被碰撞钢板的上、下边界分别为空气或水的几种情况进行了试验，研究水对碰撞波产生和传播的影响，测定了碰撞波的时间波形和平均功率谱。通过对实验结果的比较与分析得出：当碰撞发生在水中时，响应加速度的最大幅值、衰减速度和平均功率谱的分布等与在空气中相比，都有明显的不同。研究结果表明，在压水堆松动件监测中采用美国学者Ｗ．Ｈ．ＨｏｐｐｍａｎｎⅡ提出的碰撞模型会产生一定的误差。By using noise analysis technology,experiments have been done on the basis of four combination situations:when the collision of mimic loose parts took place in air or in water respectively,while the upper and lower edges of the collided steel plates are both air or water and air.The influence of production and propagation of collision wave by water are researched.The time shape and average power spectrum of collision wave are determined.Through the comparison and analysis of experiments result,it can be concluded that when the collision took place in water,the maximum amplitude of responding accelerate,the speed of decline and the distribution of average power spectrum are obviously different from that of in air.The result of research can be stated that when the loose parts monitoring in PWR the collision model provided by American scholar W.H.HoppmannⅡhas some errors.

关 键 词：压水堆 松动件 故障监测 碰撞波 噪声分析 模拟实验 

分 类 号：TL421.108[核科学技术—核技术及应用] TL38