Progress and Prospect of Structural Design and Processing Technology of CURVIC Coupling

Journal of Propulsion Technology ›› 2018, Vol. 39 ›› Issue (4): 721-730.

School of Energy and Power Engineering，Beihang University，Beijing 100191，China;Beijing Power Machinery Institute，Beijing 100074，China,School of Energy and Power Engineering，Beihang University，Beijing 100191，China,Beijing Power Machinery Institute，Beijing 100074，China,Beijing Power Machinery Institute，Beijing 100074，China and Beijing Power Machinery Institute，Beijing 100074，China

Published:2021-08-15

圆弧端齿结构设计和加工工艺研究进展与展望 *

刘恒^1,2,洪杰¹,邵伏永²,马同玲²,李垒栋²

北京航空航天大学能源与动力工程学院，北京 100191; 北京动力机械研究所，北京 100074,北京航空航天大学能源与动力工程学院，北京 100191,北京动力机械研究所，北京 100074,北京动力机械研究所，北京 100074,北京动力机械研究所，北京 100074

作者简介:刘恒，男，博士生，工程师，研究领域为转子动力学。

Abstract

Abstract: The CURVIC coupling is widely used in the connection of aeroengine shafts. It is of great significance to study its structural design method and machining process for the analysis of aeroengine rotor dynamic characteristics. Firstly，the design theory of CURVIC coupling is analyzed，the basic structural parameters of CURVIC coupling are established，and the similarities and differences of parametric design methods are compared. Secondly，the simulation analysis and test verification of tooth surface stress are introduced，and some new structural design examples are listed. The problems existing in the structural design technology are revealed and the solutions are put forward. Then，the centering principle of CURVIC coupling is explained by means of elastically averaged method. Current situation and application of centering accuracy analysis and assembly accumulative error analysis are introduced. Finally，the processing method，machining equipment，testing equipment and detection method of CURVIC coupling are reviewed，and the existing problems and possible research directions are pointed out. The results show that the effects of the CURVIC coupling structure on the rotor dynamic characteristics should be taken into account to meet rotor design requirements. If the problem of machining precision could be solved，using general equipment for processing CURVIC coupling has cost advantage. According to the urgent needs of fine detection，research and exploration of novel detection method need to be accelerated.

Key words: CURVIC coupling；Structural design；Machining process；Review

摘要： 圆弧端齿广泛应用于航空发动机轴系连接，研究其结构设计方法和加工工艺对分析航空发动机转子动力学特性具有重要意义。首先，分析了圆弧端齿结构设计理论，建立了圆弧端齿基本结构参数表述图表，对比了参数化设计方法的异同。其次，介绍了齿面应力仿真分析和试验验证情况，列举了新型结构设计实例，揭示了结构设计技术存在的问题并提出了解决途径。然后，采用弹性平均法解释了圆弧端齿的定心原理，介绍了定心精度分析、装配累积误差分析研究现状和应用情况。最后，评述了圆弧端齿加工工艺方法、加工设备、检测设备、检测方法，指出了当前存在的问题和可能的研究方向。研究结果表明:针对转子设计需求，应系统考虑圆弧端齿结构对转子动力学特性的影响；如果能够解决铣加工精度问题，采用通用设备加工圆弧端齿更具有成本优势；针对精细化检测的迫切需求，需要加快对新型检测方法的研究和探索。

关键词: 圆弧端齿；结构设计；加工工艺；综述

LIU Heng^1,2,HONG Jie¹,SHAO Fu-yong²,MA Tong-ling²,LI Lei-dong². Progress and Prospect of Structural Design and Processing Technology of CURVIC Coupling[J]. Journal of Propulsion Technology, 2018, 39(4): 721-730.

刘恒,洪杰,邵伏永,马同玲,李垒栋. 圆弧端齿结构设计和加工工艺研究进展与展望 *[J]. 推进技术, 2018, 39(4): 721-730.

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