原子能科学技术2018，Vol.52Issue(2)：269-275,7.DOI:10.7538/yzk.2018.52.02.0269
蒸汽发生器传热管在泵致脉动压力载荷下的动力学响应研究
Study on Dynamic Response of Steam Generator Heat Transfer Tube under Pump-induced Pressure Pulsation
摘要
Abstract
Pump-induced pressure pulsation is a main factor that caused the fatigue fail-ure of equipments in the nuclear power plants.In this paper,functions for the pump-induced pressure pulsation in the heat transfer tubes of the steam generator were derived and the finite element model for all heat transfer tubes with different bending radii was established.Based on these models the dynamic behavior of heat transfer tubes under the pump-induced pressure pulsation was studied.The results show that the frequency and mode of the heat transfer tubes of row 34,64,94,114,124 and 144 are the most sensitive to the pump-induced pressure pulsation.The maximum stress appears on the heat transfer tube of row 32 under the enveloped pump-induced pressure pulsation,and the rotation frequency of the pump-induced pulsating pressure load has the greatest contribution to the structure response under the pump-induced pressure pulsation.This paper offers a reference for wear analysis of heat transfer tubes in steam generator under pump-induced pressure pulsation.关键词
传热管/脉动压力/谐响应/流致振动Key words
heat transfer tube/pressure pulsation/harmonic response/flow-induced vibration分类
能源科技引用本文复制引用
蔡逢春,黄旋,沈平川,叶献辉..蒸汽发生器传热管在泵致脉动压力载荷下的动力学响应研究[J].原子能科学技术,2018,52(2):269-275,7.基金项目
国家自然科学基金资助项目(51606180) （51606180）
