Design and optimization of curvic coupling with double circular-arc root fillet in aero-engine

被引：0
|
作者：
Li A.-M. [1 ]
Cui H.-T. [1 ]
Wen W.-D. [1 ]
Huang F. [1 ]
机构：
[1] State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Energy and Power, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Tuijin Jishu/Journal of Propulsion Technology | 2016年 / 37卷 / 01期
关键词：
Curvic coupling; Double circular-arc; Finite element method; Genetic algorithm; Neural network; Optimization; Structure design;
D O I：
10.13675/j.cnki.tjjs.2016.01.019
中图分类号：
学科分类号：
摘要：
The single circular-arc root fillet of traditional curvic coupling in aero-engine often results in a stress concentration feature. To reduce fillet stress values to acceptable levels, the design method of curvic coupling with double circular-arc root fillet was established. The basic formulas for double circular-arc fillet design were provided. Computed results of the numerical examples indicate that the maximum equivalent (Von-Mises) stress of curvic coupling decreased by 5.5% when the single circular-arc root fillet was replaced by double circular-arc root fillet in curvic structure. Furthermore, a structure optimization design model for curvic coupling was presented, which was based on Spey MK202 stressing standards (EGD-3) and curvic coupling design criterion of Gleason Company. Structural optimization design analysis to curvic coupling was carried out using elitist strategy genetic algorithm. Compared with the original single circular-arc root fillet structure, the maximum equivalent stress of the optimum curvic coupling with double circular-arc root fillet is reduced by 12.3%, and the curvic root stress distribution is more homogenous. © 2016, Journal of Propulsion Technology. All right reserved.
引用
收藏
页码：146 / 155
页数：9
相关论文
共 9 条
  • [1] Muju S., Sandoval R.S., Curvic Coupling Fatigue Life Enhancement through Unique Compound Root Fillet Design
  • [2] Yin Z., Ou Y., Li Y., Et al., A Dynamic Characteristic Analysis for Axially Prestressed Rotor Systems with Curvic Couplings, Journal of Aerospace Power, 9, 2, pp. 133-136, (1994)
  • [3] Richardson I.J., Hyde T.M., Becker A.A., Et al., A Three-Dimensional Finite Element Investigation of the Bolt Stresses in an Aero-Engine Curvic Coupling under a Blade Release Condition, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 214, 4, pp. 23-24, (2000)
  • [4] Richardson I.J., Hyde T.H., Becker A.A., Et al., A Comparison of Two and Three Dimensional Finite Element Contact Analyses of Curvic Couplings, International Conference on Computational Methods in Contact Mechanics IV, pp. 389-399, (1999)
  • [5] Richardson I.J., Hyde T.H., Becker A.A., Et al., A Validation of the Three-Dimensional Finite Element Contact Method for Use with Curvic Couplings, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 216, G2, pp. 63-75, (2002)
  • [6] Pisani S.R., Rencis J.J., Investigating CURVIC Coupling Behavior by Utilizing Two and Three-Dimensional Boundary and Finite Element Methods, Engineering Analysis with Boundary Elements, 24, 3, pp. 271-275, (2000)
  • [7] Yuan S.X., Zhang Y.Y., Zhang Y.C., Stress Distribution and Contact Status Analysis of a Bolted Rotor with Curvic Couplings, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 224, 9, pp. 1815-1829, (2010)
  • [8] Fan L., Pan G.-P., Ouyang D.-H., Et al., Application of Genetic Algorithm-Support Vector Machine in Formula Optimization of Mg/PTFE Fuel Rich Propellant, Journal of Propulsion Technology, 33, 4, pp. 620-624, (2012)
  • [9] Liu B., Xuan Y., Chen Y.-Y., Stator Optimization Using Artificial Neural Network, Journal of Propulsion Technology, 30, 5, pp. 576-580, (2009)
1