摘要
针对渣包易开裂、使用寿命低等问题,采用ANSYS软件对渣包进行瞬态热力学数值模拟,并借助nCode Design Life软件预测疲劳寿命,分析渣包结构对热疲劳损伤的影响。研究结果表明:渣包支撑座与渣包壳过渡处温差较大,产生很大的热应力,造成渣包热疲劳损伤;渣包壁厚均匀可避免结构突变引起的热应力集中;优化设计后的渣包采用支腿式结构,有效降低了热应力,并提高热疲劳寿命。该数值计算的研究成果已应用于工业生产,取得了良好的技术经济效果。
As slag ladle was easy to wear and has a low service life,the transient thermodynamic of slag ladle was analyzed by the ANSYS software,and the fatigue life was predicted by the nCode Design Life software.The effects of slag ladle structure on thermal fatigue damage was researched.The results are shown as follows,the great difference in temperature between the support seat and the shell of slag ladle,causes great thermal stress and thermal fatigue damage;the wall thickness of slag ladle shall be uniform to avoid the thermal stress concentration which caused by structure mutation;the optimization design of slag ladle is adopted outrigger structure which can reduce the thermal stress and improve the fatigue life.The numerical simulation results have been applied to industrial production,and have achieved good technical and economic effects.
作者
陈奇
付美荣
CHEN Qi;FU Mei-rong
出处
《中国有色冶金》
CAS
2020年第5期83-86,98,共5页
China Nonferrous Metallurgy
基金
湖南省教育厅科学研究项目(15C0080)。
关键词
渣包
热疲劳
数值模拟
优化设计
slag ladle
thermal fatigue
numerical simulation
optimization design
