高压涡轮叶尖径向运行间隙概率设计

费成巍; 白广忱; 赵合阳; 韩彦彬

高压涡轮叶尖径向运行间隙概率设计

北京航空航天大学能源与动力工程学院, 北京 100191

基金项目: 国家自然科学基金资助项目(51175017,51275024);高等学校博士学科点专项科研基金资助课题;北京航空航天大学博士生创新基金资助项目(YWF-12-RBYJ-008)

详细信息

作者简介:
费成巍(1983-),男,河南开封人,博士生,Feicw544@163.com.

中图分类号: V231.95
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- 文章访问数: 1889
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- 被引次数: 0
出版历程
- 收稿日期: 2012-02-21
- 网络出版日期: 2013-03-31

Probabilistic design for blade-tip radial running clearance of HPT

School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 为了改善高压涡轮叶尖径向运行间隙(BTRRC,Blade-Tip Radial Running Clearance)设计和控制合理性,考虑典型载荷下的热载荷和机械载荷和合理选取随机变量,在确定性分析基础上对BTRRC进行了概率设计.通过确定性分析,得出涡轮盘、叶片和机匣的径向变形以及BTRRC随时间变化规律,并找出危险点(t=180 s)作为概率设计的计算点.通过概率分析,不但得到了各部件径向变形的概率分布特征及不同稳态叶尖间隙δ下的失效数、失效概率和可靠度,还找到了影响它们径向变形和BTRRC的主要因素.综合考虑航空发动机可靠性和效率,将δ设定为1.95 mm为宜,满足设计和工程要求,为BTRRC的控制和设计提供了依据.
- 航空发动机 /
- 高压涡轮 /
- 叶尖径向运行间隙 /
- 概率设计 /
- 灵敏度分析 /
- 响应面法
Abstract: To improve the blade-tip radial running clearance(BTRRC) design of aeroengine high pressure turbine(HPT), the probabilistic analysis of BTRRC was implemented based on deterministic analysis through considering the heat and mechanical loads of objects (disk, blade and casing) and selecting random variables legitimately. The variation of BTRRC and the radial deformations of objects with time were gained and the minimum clearance at t=180 s was regarded as the probabilistic analysis point through the deterministic analysis. In addition, the probabilistic distribution features and failure numbers, failure probabilities and reliabilities under different static clearance δ predetermined were obtained besides the major factors impacting on the deformations and BTRRC through the probabilistic analyses. The results show that δ=1.95 mm is advisable to select as an effective reference for the control and design of BTRRC for satisfying the aeroengine design and engineering.
- aeroengine /
- high pressure turbine(HPT) /
- blade-tip radial running clearance (BTRRC) /
- probabilistic design /
- sensitivity analysis /
- response surface method(RSM)

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参考文献(1)

[1] Hennecke D K,Trappmann K.Turbine tip clearance control in gas turbine engines[R].NASA,N83-29254,1983 [2] Annette E N,Christoph W M,Stehan S.Modeling and validation of the thermal effects on gas turbine transients [J].Journal of Engineering for Gas Turbines and Power,2005,127(3):564-572 [3] Pilidis P,Maccallum N R L.Models for predicting tip clearance changes in gas turbines[R].NASA,N83-29258,1983 [4] Lattime S B,Steinetz B M.Turbine engine clearance control systems:current practices and future directions [J].Journal of Propulsion and Power,2004,20(2):302-311 [5] Jia Binghui,Zhang Xiaodong.Study on effect of rotor vibration on tip clearance variation and fast active control of tip clearance[J].Advanced Material Research,2010,139-141(1):2469-2472 [6] Kypuros J A,Melcher K J.A reduced model for prediction of thermal and rotational effects on turbine tip clearance[R].NASA/TM-2003-212226,2003 [7] Lattime S B,Steinetz B M.Robbie M G.Test rig for evaluating active turbine blade tip clearance control concepts [J].Journal of Propulsion and Power,2005,21(3):552-563 [8] Forssell L S.Flight clearance analysis using global nonlinear optimisation-based search algorithms[C]//AIAA Guidance,Navigation,and Control Conference and Exhibit.Austin,Texas:AIAA,2003:1-8 [9] Kartal M E,Basaga H B,Bayraktar A.Probabilistic nonlinear analysis of CFR dams by MCS using response surface method [J].Applied Mathematical Modelling,2011,35(6):2752-2770 [10] Guilhem M,Daniel D,Abdul-Hamid S.Probabilistic analysis of pressurized tunnels against face stability using collocation-based stochastic response surface method [J].Journal of Geotechnical & Geoenvironmental Engineering,2011,137(4):385-397 [11] Pietrzyk K,Hagentoft C.Probabilistic analysis of air infiltration in low-rise building [J].Building and Environment,2008,43(4):537-549 [12] Lü Q,Low B K.Probabilistic analysis of underground rock excavations using response surface method and SORM [J].Computers and Geotechnics,2011,38(8):1008-1021 [13] Pugh C E,Richard Bass B,Dickson T L.Role of probabilistic analysis in integrity assessments of reactor pressure vessels exposed to pressurized thermal-shock conditions [J].Engineering Failure Analysis,2007,14(8):501-517 [14] Hu Dianying,Wang Rongqiao,Tao Zhi.Probabilistic design for turbine disk at high temperature[J].Aircraft Engineering and Aerospace Technology,2011,83(4):199-207 [15] Chen Jianbing,Li Jie.Dynamic response and reliability analysis of non-linear stochastic structures [J].Probabilistic Engineering Mechanics,2005,20(1):33-44 [16] Nakamura T,Fuji K.Probabilistic transient thermal analysis of an atmospheric reentry vehicle structure [J].Aerospace Science and Technology,2006,10(4):346-354 [17] 李昌,韩兴.基于响应面法齿轮啮合传动可靠性灵敏度分析 [J].航空动力学报,2011,26(3):711-715 Li Chang,Han Xing.Analysis of reliability sensitivity for gear engagement based on response surface methods [J].Journal of Aerospace Power,2011,26(3):711-715(in Chinese)

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