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中文摘要: 本文采用流-热-固耦合方法，对某燃气轮机透平动叶的流场、温度场以及应力分布进行了计算分析，并据此对叶片的蠕变寿命进行了计算，得到了蠕变寿命云图，发现该叶片的寿命最短点与温度最高点、应力 最大点不在同一位置。相较于传统的选取温度最高和应力最大的节点作为危险点进行寿命分析的方法，对叶片所有节点进行寿命计算，形成寿命云图的方法，能更加直观准确地找到寿命最短的位置，从而更好地评估设计方案。
Abstract:In this paper，the flow field，temperature field and stress distribution of turbine blades of a gas turbine were calculated and analyzed using the fluid-thermal-mechanical coupling method.The creep life of the blade was calculated accordingly，and the creep life
cloud is obtained. The point of shortest life of the blade is not at the same position as the point of highest temperature and the point of maximum stress. The traditional method selected points of the highest temperature or the maximum stress as the danger point for life analysis. Compared with that the method for calculating the life of all the nodes of the blade and forming the life cloud diagramcan find the position with the shortest life more directly and accurately. Thus evaluate the design plan better.
文章编号： 中图分类号：TK472 文献标志码：
基金项目:国家自然科学重点基金项目（Y3113015D1 )
引用文本：
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.