螺旋管换热器传热管动力特性的试验及数值分析  

EXPERIMENTAL AND NUMERICAL ANALYSIS FOR THE DYNAMICAL CHARACTERISTICS OF A HELICAL TUBE IN HEAT EXCHANGERS

作　　者：江俊[1] 沈时芳[1] 顾正祥[1] 徐健学[1] 

机构地区：[1]西安交通大学

出　　处：《核科学与工程》1993年第1期20-27,6,共8页Nuclear Science and Engineering

摘　　要：介绍了模拟高温气冷堆蒸汽发生器螺旋式传热管的螺旋管动力特性试验模型;对单根螺旋管在不同支撑条件下的动力特性进行试验研究的方法;动力特性的一些规律;并用有限元方法对试验模型的固有频率进行了数据分析。由计算结果和试验结果比较看出,本文建立的有限元计算模型可对螺旋式传热管的固有频率进行有效的预测。In this paper, a single helical tube test model which simulates the tube in a steam generator of a high temperature gas cooled reactor, the test metheds for its dynamical characteristics in different sup- port condition, and some results of its dynamical characteristics are introduced. Then, finite element method is used to calculate the natural frequencies of the test model. From the comparicion between the computed results and test results, it is found that the numerical models presented in this poper are rea- sonable and can effectively predict the natural frequencies of a helical tube in a heat exchanger.

关 键 词：螺旋管 动力特性 有限元法 换热器 

分 类 号：TL353.13[核科学技术—核技术及应用]