ANSYS有限元法在测长绝热真空腔二维热分析中的应用  

Two-dimentional Thermal Analysis of Adiabatic Vacuum Chamber with ANSYS Finite Element Simulation

作　　者：杨丽峰[1] 罗志勇[1] 徐爱华 

机构地区：[1]中国计量科学研究院,北京100013 [2]湖北省计量测试技术研究院,湖北武汉438700

出　　处：《计量学报》2012年第5期416-418,共3页Acta Metrologica Sinica

基　　金：国家科技部固体密度基准研究项目（2002DEA20014）

摘　　要：针对测长绝热真空腔内温度场测量困难的特点，提出应用ANSYS有限元仿真与实验研究相结合的方法进行二维热分析。详细介绍了真空腔的ANSYS有限元建模、参数确定、网格划分、施加载荷和求解过程。仿真结果表明外界环境温度变化1℃，绝热真空腔内温度将变化0．085oC。对仿真结果进行了实验验证，实验结果证明利用该仿真技术可准确、可靠地分析绝热真空腔内的温度场，并且提高实验效率的同时降低了实验成本。According to the difficulties of measuring temperature distribution in the adiabatic vacuum chamber, the method of combing ANSYS finite element simulation with experimental study is proposed. ANSYS finite element modeling, parameter identification, meshing, applying loads, and the solution process are described. Simulation results show that changes in ambient temperature 1 ℃, heat insulation vacuum chamber temperature will change 0. 085℃ , and verify the simulation results of the experiments. Test results show that use of the simulation can be accurate and reliable analysis of insulation vacuum chamber temperature, and improve test efficiency and reduce experimental costs.

关 键 词：计量学 绝热真空腔 二维热分析 ANSYS有限元法 

分 类 号：TB933[一般工业技术—计量学]