有限元在钛合金航空发动机叶片热加工中的应用

钛合金广泛用于制造航空发动机叶片,高温锻造是制造钛合金发动机叶片的主要热加工工艺之一.钛合金叶片高温锻造研究中,有限元模拟是分析锻造过程中的热力耦合,预测并优化锻造成形过程的一个重要手段.回顾有限元建模在涡轮叶片锻造研究中的发展历程,概述材料本构模型、传热定义和摩擦特性等方面的研究,以确保有限元模型有效预测的因素.分析表明,为获得精确可靠的有限元模拟结果进而优化生产工艺,有限元模型需要基于合理的试验结果并确立可预测的物理模型....

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Bibliographic Details
Published in航空材料学报 Vol. 34; no. 4; pp. 62 - 71
Main Author 白倩 林建国
Format Journal Article
LanguageChinese
Published 帝国理工学院机械工程学院,伦敦 SWT 2AZ,英国 2014
Subjects
发动机叶片
有限元建模
钛合金
高温锻造
finite element modelling
发动机叶片
高温锻造
hot forging
有限元建模
engine blade
titanium alloy
钛合金
Online AccessGet full text
ISSN1005-5053
DOI10.11868/j.issn.1005-5053.2014.4.006

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Summary:钛合金广泛用于制造航空发动机叶片,高温锻造是制造钛合金发动机叶片的主要热加工工艺之一.钛合金叶片高温锻造研究中,有限元模拟是分析锻造过程中的热力耦合,预测并优化锻造成形过程的一个重要手段.回顾有限元建模在涡轮叶片锻造研究中的发展历程,概述材料本构模型、传热定义和摩擦特性等方面的研究,以确保有限元模型有效预测的因素.分析表明,为获得精确可靠的有限元模拟结果进而优化生产工艺,有限元模型需要基于合理的试验结果并确立可预测的物理模型.
Bibliography:Titanium alloys are widely used in the precision hot forged engine blades for aircraft.Applications of hot forging for engine blades of titanium alloys are discussed.Finite element （FE） modelling has been extensively used to ensure a better understanding of the hot forming process.This review paper provides an overview of current research development on hot forging FE modelling for engine blades：material constitutive modelling,heat transfer definition and friction characteristics are among the most important aspects to ensure an accurate FE prediction.It is concluded that FE modelling studies and analysis are needed to create predictive physically-based models which should be in good agreement with reliable experimental results when investigating the effects of many parameters on hot forging of titanium alloys.
titanium alloy ; engine blade ; hot forging ; finite element modelling
11-3159/V
BAI Qian,LIN Jianguo（ 1.Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK;）
ISSN:1005-5053
DOI:10.11868/j.issn.1005-5053.2014.4.006