基于三维模型的偏心鼓筒气动特性分析

陈陆淼; 王洪玉; 秦朝烨; 褚福磊

doi:10.13224/j.cnki.jasp.2015.02.014

基于三维模型的偏心鼓筒气动特性分析

doi: 10.13224/j.cnki.jasp.2015.02.014

清华大学机械工程系, 北京 100084

基金项目:

国家自然科学基金(11272170)

详细信息

作者简介:
陈陆淼(1988-),女,浙江绍兴人,博士生,主要从事机械动力学研究.E-mail:clmdaisy@163.com

中图分类号: V231.3
计量
- 文章访问数: 1125
- HTML浏览量: 2
- PDF量: 849
- 被引次数: 0
出版历程
- 收稿日期: 2013-10-09
- 刊出日期: 2015-02-28

Aerodynamic characteristics analysis of eccentric drum basedon three-dimensional model

Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

摘要

摘要: 为了获取篦齿封严鼓筒齿腔内的压力分布,掌握鼓筒气动特性情况,建立了带封严篦齿鼓筒的三维流场通道模型,计算转静子同心和不同偏心量条件下鼓筒表面静压,分析气动载荷作用下鼓筒的力学特性.仿真结果表明:偏心量的变化使表面静压出现复杂变化,周向静压幅值变动明显,最大偏心量下的静压幅值比无偏心时增长3倍;偏心引起的周向静压波动使鼓筒应力幅值最大浮动3%左右.
- 航空发动机 /
- 篦齿鼓筒 /
- 气动 /
- 三维模型 /
- 偏心
Abstract: In order to obtain the pressure distribution inside the cavity of drum with labyrinth seal, and understand its aerodynamic characteristics, a three-dimensional model of the flow field channel of drum with labyrinth seal was developed, and the static pressure on the surface of drum with and without eccentricity between the drum and the stator was calculated. Then, the mechanics characteristics of drum under aerodynamic loads was analyzed. The simulation results show that different eccentricities complicate the surface static pressure, and change the circumferential static pressure amplitudes obviously. The amplitude of static pressure with the largest eccentricity increases 3 times compared with that without eccentricity. The maximum fluctuation of drum stress amplitude caused by circumferential static pressure considering eccentricity is about 3%.
- aero-engine /
- drum with labyrinth seal /
- aerodynamic /
- three-dimensional model /
- eccentricity

HTML

参考文献(18)

[1]	杨士杰,吕文林.航空涡喷、涡扇发动机结构设计准则[M]. 北京:中国航空工业总公司发动机系统工程局,1997.
[2]	刘大响,陈光.航空发动机—飞机的心脏[M].北京:航空工业出版社,2003.
[3]	张伟.航空发动机[M].北京:航空工业出版社,2010.
[4]	杨军.直通型封严篦齿流动特性的试验研究及数值计算[D].成都:电子科技大学,2009. YANG Jun.Experiment research and numerical calculation of seal grate tooth flow characteristics in straight-through type[D].Chengdu:University of Electronic Science and Technology of China,2009.(in Chinese)
[5]	Martin H M.Labyrinth packings[J].Journal of Engineering,1998,85(16):33-36.
[6]	Kearton W J,Keh T H.Leakage of air through labyrinth glands of staggered type[J].Proc.Inst.Mech.Engrs.,1952,166(1):180-188.
[7]	Egli A.Theleakage of steam through labyrinth seals[J].Transactions of the ASME,1935,57(22):115-122.
[8]	Denecke J,Schramm V,Kin S,et al.Influence of rub-grooves on labyrinth seal leakage[J].Journal of Turbomachinery,2003,125(2):387-393.
[9]	Margaret P P.High-speed,high-temperature finger seal test results[R].NASA TM2002-211589,2002.
[10]	Stocker H L,Cox D M.Aerodynamic performance of conventional and advanced design labyrinth seals with solid-smooth,abradable,and honeycomb lands[R].NASA CR-135307,1997.
[11]	Vakili A D,Meganathan A J.Advanced labyrinth seals for steam turbine generators[R].ASME Paper GT2006-91263, 2006.
[12]	张霞,张效伟,朱惠人,等.直通型篦齿封严特性的试验[J].航空动力学报,2010,25(8):1753-1757. ZHANG Xia,ZHANG Xiaowei,ZHU Huiren,et al.Experimental investigation on seal characteristics of straight through labyrinth[J].Journal of Aerospace Power,2010,25(8):1753-1757.(in Chinese)
[13]	王鹏飞,刘玉芳,郭文,等.高转速对直通型篦齿封严特性影响的试验研究[J].燃气涡轮试验与研究,2007,5(2):45-48. WANG Pengfei,LIU Yufang,GUO Wen,et al.Influence of high rotational speeds on the labyrinth sealing characteristics[J].Gas Turbine Experiment and Research,2007,5(2):45-48.(in Chinese)
[14]	Erik B,Klaus D,Hans J B.Optimization of combining experimental,numerical and data mining methods[R].ASME Paper 2012-GT-68077,2012.
[15]	Michaud M,Vakili A,Meganathan A.An experimental study of labyrinth seal flow[R].IJPGC 2003-40097,2003.
[16]	Stocker H L,Cox D M.Aerodynamic performance of conventional and advanced design labyrinth seals with solid-smooth,abradable,and honeycomb lands[R].NASA CR-135307,1977.
[17]	纪国剑.航空发动机典型篦齿封严泄露特性的数值和实验研究[D].南京:南京航空航天大学,2008. JI Guojian.Numerical and experimental investigation of sealing characteristics on typical labyrinth seals in aero-engine[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2008.(in Chinese)
[18]	王洪玉,秦朝烨,褚福磊,等.航空发动机直通型篦齿封严鼓筒气动力分析[J].工程力学,2013,30(12):267-274. WANG Hongyu,QIN Zhaoye,CHU Fulei,et al.Aero dynamic analysis of straight through labyrinth seal of the drum of an aeroengine[J].Engineering Mechanics,2013,30(12):267-274.(in Chinese)