摘要
介绍了一种用来描述堆内部件振动引发中子噪声的物理模型。本模型基于控制论的观点，将反应堆动态方程与随机振动方程结合起来，并在振动方程描述中考虑了非线性项。通过在零功率堆的实验和分析，证明该模型能够描述堆内部件振动引发中子噪声的动态特性，为反应堆运行时堆内部件振动特性的故障判别提供了一种手段。
This paper presents a physical model of neutron noise induced by reactor internals vibration in frequency domain.Based on system control theory,the reactor dynamic equations are coupled with random vibration equation,and non linear terms are also taken into accounted while treating the random vibration.Experiments carried out on a zero power reactor show that the model can be used to describe dynamic character of neutron noise induced by internals′vibration.The model establishes a method to help to determine internals′vibration features,and to diagnosis anomalies through neutron noise.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
1999年第1期36-41,共6页
Nuclear Power Engineering
关键词
堆内部件
随机振动
中子噪声
物理模型
反应堆
Reactor internals Random vibration Neutron noise Physical model Modal analysis
