Numerical Analyses on Fatigue Life for Compressor Blades under Complex Loads

被引：0
|
作者：
Zhang J. [1 ]
Liu M. [1 ]
Fu X. [1 ]
Kou H. [1 ]
Lin J. [1 ]
机构：
[1] State Key Laboratory of Engines, Tianjin University, Tianjin
来源：
Fu, Xi (fuxi22@tju.edu.cn) | 1600年 / Chinese Mechanical Engineering Society卷 / 28期
关键词：
Aero-engine; Complex load; Compressor blade; Fatigue life; Reverse modeling;
D O I：
10.3969/j.issn.1004-132X.2017.12.009
中图分类号：
学科分类号：
摘要：
In order to improve service life of blades, three blade models were built based on reverse engineering to calculate stress distribution and fatigue life of blades under complex loadings. Considering the influence of centrifugal loads and aerodynamic loads, stress distributions of compressor blades were solved under complex loads. Moreover, the fatigue limit and life prediction model parameters were defined through the fatigue tests, and the fatigue life of compressor blades under the typical working conditions were predicted by nonlinear continuous damage model. Comparing the differences of stress values and fatigue life among three models, results show that the restoration degree of blade geometrical features for the calculation model must be considered when numerical calculations were carried out for blades with complex torsional characteristics. © 2017, China Mechanical Engineering Magazine Office. All right reserved.
引用
收藏
页码：1442 / 1448and1467
相关论文
共 16 条
  • [1] Tao C., Zhong P., Wang R., Et al., Failure Analysis and Prevention for Rotor in Aero-engine, pp. 6-18, (2000)
  • [2] Shi K., Zhao X., Xu J., Research on Fatigue Numerical Calculation Method of Wind Turbine under Gravity Load, Acta Energiae Solaris Sinica, 34, 2, pp. 181-185, (2013)
  • [3] Leylek Z., Neely A.J., Development of a Blade Parametric Modeling Methodology for Design and Analysis of Computer Experiments, ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, (2015)
  • [4] Yun Z., Zhi T.C., Tao N., Reverse Modeling Strategy of Aero-engine Blade Based on Design Intent, The International Journal of Advanced Manufacturing Technology, 81, 9-12, pp. 1781-1796, (2015)
  • [5] Ni K., Wang X.Q., Mignolet M., Blade Stress Estimation during Multiple Vibratory Modes, Structures, Structural Dynamics, and Materials Conferences, (2013)
  • [6] Zhang S., Stress Calculation and Vibration Analysis of the Gas Turbine Rotor Blade and Compressor Assembly, (2011)
  • [7] Li Y., Xu S., Yang S., Et al., Fatigue Strength Analysis of Compressor Impeller under Non-typical Aerodynamic Load, Journal of Mechanical Engineering, 51, 9, pp. 82-89, (2015)
  • [8] Dhopade P., Neely A.J., Aeromechanical Modeling of Rotating Fan Blades to Investigate High-cycle and Low-cycle Fatigue Interaction, Journal of Engineering for Gas Turbines and Power, 137, 5, (2015)
  • [9] Brandsen J.D., Prediction of Axial Compressor Blade Vibration by Modelling Fluid-structure Interaction, (2013)
  • [10] Tao H., Zhu Y., Guo B., Et al., Numerical Simulation of Aeroelastic Response in Compressor Based on Fluid-structure Coupling, Journal of Aerospace Power, 27, 5, pp. 1054-1060, (2012)
12