Investigations on Aerodynamic and Mechanical Performance of Transonic Blade Based on Fluid-Structure Interaction Method
WANG Song-bai1,LI Shao-bin1,2, SONG Xi-zhen1
1. National Key Laboratory of Science and Technology on Aero-thermodynamics, School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. Collaborative Innovation Center for Advanced Aero-Engine, Beijing 100191, China
In order to research the influence of the fluid-structure interaction for the aerodynamic and mechanical performance of the transonic compressor blade, A time domain two-way fluid-structure interaction numerical method with ANSYS-CFX/Multiphysics was applied to study the aerodynamic performance of transonic blade under aerodynamic and centrifugal forces. The mechanical performance was analyzed by comparing the results between one-way and two-way fluid-structure interaction methods. The results show that the maximum displacement of this blade appears at tip near leading edge, the blade deformation has significant effects on the aerodynamic performance in comparison with the cold blade, which makes passage shock wave position forward and choke mass flow rate increased. Comparing the results between one-way and two-way FSI numerical computation in mechanical performance, the amplitude of the overall blade deformation increases by 1.1%, and the maximum Von-Mises stress increases by 0.8%. The overall results indicate that the industrial practice should adopt a two-way fluid-structure interaction method to guide the aerodynamic design and check the strength, and to improve the safety and reliability of the compressor.
汪松柏1,李绍斌1,2,宋西镇1. 基于流固耦合方法的跨声速叶片气动和强度性能研究[J]. 振动与冲击, 2016, 35(20): 104-110.
WANG Song-bai1,LI Shao-bin1,2, SONG Xi-zhen1. Investigations on Aerodynamic and Mechanical Performance of Transonic Blade Based on Fluid-Structure Interaction Method. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(20): 104-110.
[1] 王占学,刘增文,蔡元虎,等. 推重比15一级发动机关键技术及分析[J]. 航空发动机,2010, 36(1): 58-62.
WANG Zhan-xue, Liu Zeng-wen, CAI Yuan-hu, et al. Key technologies and analysis of aeroengine with Thrust to Weight Ratio up to Level of 15[J]. Aeroengine, 2010, 36(1): 58-62.
[2] 陈懋章,刘宝杰. 风扇/压气机气动设计技术发展趋势—用于大型客机的大涵道比涡扇发动机[J]. 航空动力学报,2008, 23(6): 961-975.
CHEN Mao-zhang, Liu Bao-jie. Fan/compressor aero design trend and challenge on the development of high bypass ratio turbofan[J]. Journal of Aerospace Power, 2008, 23(6): 961-975.
[3] Mahajan A J, Stefko G L. An Iterative Multidisciplinary Analy- sis for Rotor Blade Shape Determination[R]. AIAA/SAE/AS- ME/ASEE 29th Joint Propulsion Conference and Exhibit 1993.
[4] Wilson M J, Imregun M, Sayma A I. The effect of stagger variability in gas turbine fan assemblies[J]. Journal of turbomachinery, 2007, 129(2): 404-411.
[5] Kallesøe B S, Hansen M H. Some effects of large blade deflections on aeroelastic stability[C]//47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition, Orlando, Florida. 2009: 5-8.
[6] Kallesøe B S. Equations of motion for a rotor blade, including gravity, pitch action and rotor speed variations[J]. Wind Energy, 2007, 10(3): 209-230.
[7] Hou J, Wicks B J. Root flexibility and untwist effects on vibration characteristics of a gas turbine blade[R]. DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION VICT- ORIA (AUSTRALIA) PLATFORM SCIENCES LAB, 2002.
[8] 郑赟,田晓,杨慧. 跨声速风扇叶片变形对气动性能的影响[J]. 航空动力学报,2011, 26(07): 1621-1627.
ZHENG Yun, TIAN Xiao, YANG Hui. Impact of blade deflection on aerodynamic performance of transonic fan[J]. Journal of Aerospace Power, 2010, 26(07): 1621-1627.
[9] 郑赟,王彪,杨慧. 跨声速风扇叶片的静态气动弹性问题[J].航空动力学报,2013, 28(11): 2475-2482.
ZHENG Yun, WANG Biao, YANG Hui. Static aeroelastic problems of transonic fan blade[J]. Journal of Aerospace Power, 2013, 28(11): 2475-2482.
[10] 李彬,宋立明,李军. 基于双向流固耦合的长叶片气动和强度性能的数值研究[J]. 推进技术, 2014, 35(2): 202-207.
LI Bin, SONG Li-ming, LI Jun. Numerical Investigations on Aerodynamic and Mechanical Performance of Long Blade Based on Two-Way Fluid-Structure Coupling Approach[J]. Journal of propulsion Technology, 2014, 35(2): 202-207.
[11] 姜伟,谢诞梅,陈畅,等. 基于时域分析法的汽轮机末级叶片颤振预测及分析[J]. 振动与冲击,2015, 34(11): 194- 199.
JIANG Wei, XIE Dan-mei, CHEN Chang, et al. Flutter prediction and analysis for a steam turbine last-stage blade based on time domain analysis method[J]. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(11): 194-199.
[12] 谭祯,李朝峰,太兴宇,等. 不同湍流模型旋转叶片气固耦合动力学特性研究[J]. 振动与冲击, 2013, 32(11): 46-50.
TAN Zhen, LI Chao-feng, TAI Xing-yu, et al. Dynamic characteristics of rotating blades with gas-structure interaction of various turbulence models[J]. JOURNAL OF VIBRATION AND SHOCK, 2013, 32(11): 46-50.
[13] Strazisar A J, Wood J R, Hathaway M D, et al. Laser anemometer measurements in a transonic axial-flow fan rotor[R]. NASA Technical Paper 2879, 1-220, 1989.
[14] Zheng R, Xiang J, Sun J. Blade geometry optimization for axial flow compressor[C]//ASME Turbo Expo 2010: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2010: 633-644.
[15] 范顺昌,唐晓辉,张银东,等. 航空发动机高压压气机三级转子叶片掉角分析[J]. 失效分析与预防,2014, 9(2): 110-114.
FAN Shun-chang, TANG Xiao-hui, ZHANG Yin-dong, et al. Failure Analysis of Third-stage Rotor Blade of High-pressure Compressor in Aero-engine[J]. Failure Analysis and Preven- tion, 2014, 9(2): 110-114.