發(fā)布時(shí)間：2023-12-22 08:08

　　本文主要研究了壓水堆內(nèi)控制棒的流致振動(dòng)特性并分析了導(dǎo)向筒周圍及內(nèi)部的流場,通過分析得到不同流量工況下控制棒的流致振動(dòng)特性。研究中搭建控制棒流致振動(dòng)的實(shí)驗(yàn)裝置,并將CFD的數(shù)值模擬結(jié)果和實(shí)驗(yàn)進(jìn)行對(duì)比。實(shí)驗(yàn)裝置中包含四根控制棒模擬件和三層導(dǎo)向板,控制棒模擬件通過螺紋連接在星型支撐結(jié)構(gòu)上。實(shí)驗(yàn)裝置設(shè)置底部和側(cè)面兩個(gè)進(jìn)水口,一個(gè)高于側(cè)面進(jìn)水口的出水口。實(shí)驗(yàn)中采用激光位移傳感器進(jìn)行控制棒的振動(dòng)測量,傳感器直接與采集后處理系統(tǒng)相連接。改變流場的工況,獲得在不同進(jìn)口流量下的控制棒振動(dòng)位移、流場速度分布、流場壓力分布和控制棒表面的壓力分布等實(shí)驗(yàn)數(shù)據(jù)。實(shí)驗(yàn)的結(jié)果與數(shù)值計(jì)算的結(jié)果相一致。實(shí)驗(yàn)中使用DASP等軟件進(jìn)行噪聲去除等后處理,使用TECPLOT進(jìn)行流場的測量數(shù)據(jù)與模擬結(jié)果對(duì)比。

【文章頁數(shù)】：66 頁

【學(xué)位級(jí)別】：碩士

【文章目錄】：
摘要
Abstract
1. Introduction
    1.1 Importance of Study on the vibrations of the control rod
    1.2 Research Motivation
    1.3 Literature Review
    1.4 Research Objectives
    1.5 Methodology for Research
    1.6 Thesis Outline
2. Physical Model Understanding
    2.1 Basic Design and Experimental Values
    2.2 Components of the Apparatus
    2.3 Turbulent Fluid Flow
    2.4 Fluid Induced Vibrations
3. ANSYS CFD Modeling
    3.1 Workbench Model
    3.2 CFX Meshing
    3.3 CFX Setup
    3.4 CFX Post-Processing
4. ANSYS Solid Modeling
    4.1 ANSYS Transient Structural Meshing
    4.2 ANSYS Transient Structural Setup
    4.3 Transient Structural Results
    4.4 ANSYS Modal Analysis
5. Comparison of the Computational Results with the Experimental ones
    5.1 Comparison of CFD results with experimental ones
    5.2 Comparison of FIV results with experimental ones
6. Conclusions and Future Works
    6.1 Conclusions
    6.2 Future Recommendations
Reference
Acknowledgement
Publications and other Projects during Masters
About the Author



本文編號(hào)：3874086