论文部分内容阅读
应用流-固耦合理论推导相似准则和模型设计。在反应堆1:10模型上进行了吊篮结构的空气和静水中模态分析试验,获得动态特性。在反应堆1:5水力回路上进行吊篮水力振动试验,测得了流体对吊篮表面脉动压力、加速度、应变等信号与流量关系。经信号处理后获得了流体载荷谱及各种响应参数。在这两个试验基础上对流-固耦合与流致振动定量分析,导出吊篮水流振动理论计算方程。计算了秦山核电厂300MW的吊篮水流振动的响应与试验相符合。试验分析结果表明吊篮水流振动在寿期内是安全的。
Application of Fluid - Solid Coupling Theory to Deriving Similar Criteria and Model Design. In the 1:10 reactor model, the air and hydrostatic modal analysis of the basket structure were carried out to obtain the dynamic characteristics. In the 1: 5 hydraulic circuit of the reactor, the vibration test of the basket was conducted, and the relationship between the signal and the flow rate of the suspension basket on the pulsating pressure, acceleration and strain was measured. After signal processing obtained fluid load spectrum and a variety of response parameters. On the basis of these two experiments, the quantitative analysis of flow-solid coupling and flow-induced vibration is deduced, and the theoretical calculation equation of water flow in the basket is derived. The calculation of the vibration response of 300MW basket in Qinshan NPP coincides with the experiment. The experimental results show that the basket water flow vibration is safe during the life span.