摘要
运用DEFORM-HT模块以30Cr2Ni4MoV低压转子为对象研究其升温过程中内部产生的温度场和热应力,获得了加热过程中低压转子截面几个关键位置处的升温曲线及热应力曲线,分析了最大截面上的温度分布以及温差对热应力的影响,得出了加热速度和保温时间与温差和热应力之间的关系。
By adopting DEFORM-HT module, the internally generated temperature field and thermal stress during the temperature rise period of 30Cr2Ni4MoV low pressure rotor have been studied. Then, the temperature rising curve and the thermal stress curve at several key points of cross section of rotor during the heating process have been obtained. Meanwhile, the distribution of temperature on the maximum cross section and the influence of thermal stress on temperature difference have been analyzed. Finally, the relationships between heating rate and holding time, temperature difference and thermal stress have been reached.
出处
《大型铸锻件》
2016年第1期6-9,共4页
Heavy Casting and Forging
基金
国家自然科学基金资助项目(51275330)
山西省自然科学基金资助项目(2012011022-4)
