涡轮叶片等离子涂层应力分析

唐家鹏; 李志永

doi:10.15892/j.cnki.djzdxb.2010.06.004

2010 , Vol. 30 >Issue 6: 227 - 229

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2010.06.004

摘要

根据航空发动机涡轮叶片等离子涂层即热障涂层系统在各种工况下的特性,建立了叶片试件的结构模型及有限元模型。利用MSC.Marc软件对热障涂层进行了系统性的分析,分别计算了不同初始无应力状态温度和不同氧化层厚度条件下涂层内部的应力变化情况,从而了解热障涂层的失效特点和其影响因素的作用特点,为提高涂层的寿命提供理论参考。

关键词： 涡轮叶片; 有限元; 热障涂层; 残余应力

本文引用格式

唐家鹏 , 李志永 . 涡轮叶片等离子涂层应力分析[J]. 弹箭与制导学报, 2010 , 30(6) : 227 -229 . DOI: 10.15892/j.cnki.djzdxb.2010.06.004

Abstract

According to the characteristics of the plasma sprayed thermal barrier coating on the aero engine turbine vane under differ-ent conditions, structure and finite element model of the vane were established. Thermal barrier coating was analyzed by Marc soft-ware systematically. The stress changes in the coating under different temperature and oxide thickness were calculated separately. The failure characteristics of the thermal barrier coating and the effect characteristics of its factors were learned.

Key words： turbine vane; finite element; thermal barrier coating; residual stress

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参考文献

[1]	魏洪亮. 涡轮叶片/热障涂层结构分析方法及界面破坏研究[D]. 北京: 北京航空航天大学, 2007.
[2]	Sheffler K D. Current status and future trends in turbine application of thermal barrier[J]. Journal of Engine for Gas Turbine and Power, 1988, 110 (4): 605- 609.
[3]	姚国凤, 马红梅, 王晓英,等. 热障涂层界面形貌尺寸与残余应力的关系[J]. 金属热处理, 2005, 30 (10): 43- 46.
[4]	李志永, 鲍蕊, 张建宇,等. 换热系数对热机耦合作用下热障涂层性能的影响[J]. 航空动力学报, 2008, 23 (5): 946- 951.

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