ZHAN Huiying
,
WANG Xudong
,
GUO Liangliang
,
YAO Man
钢铁研究学报(英文版)
The distributions of heat flux along the height and the circumferential direction of round billet mould were measured continuously. The influence of casting speed, carbon content, powder, and pouring temperature on the average longitudinal and circumferential heat flux in the “high heat flux region” was discussed. The experimental and analytical results provide a basis for an intelligent mould with online detection of defects, adjustment of operational parameters, optimization of the monitoring system, and even prediction of abnormal heat transfer.
关键词:
continuous casting;mould;heat flux;round billet
周萧明
,
胡更开
复合材料学报
doi:10.3321/j.issn:1000-3851.2004.06.026
提出了预测复合材料非线性电位移和电场强度关系的一种解析方法,该方法基于各向材料的割线介电常数,将非线性问题转化成一系列线性问题来求解.该方法适用于任意各向异性复合材料和组分材料的非线性性质,而常用的Stroud和Hui的模型只适用于各向同性复合材料和组分材料的弱线性.证明了本文方法具有Ponte Castaneda提出的变分结构.计算结果表明,当基体非线性较小时,本文模型的预测与Stroud和Hui的模型一致,但当基体非线性系数增大时,本文模型能给出合理的预测结果,而Stroud和Hui的模型则会超出基体和夹杂的性能范围.
关键词:
复合材料
,
介电常数
,
非线性
,
割线方法
