STUDY ON THE MECHANISM OF INFLUENCE OF INTERNAL GEAR RING FLEXIBILITY ON THE BIAS LOAD BEHAVIOR OF AERONAUTICAL PLANETARY GEAR SYSTEM

DING Shuo; LUO Yuan; LI Ming; NING Yongxu

doi:10.16579/j.issn.1001.9669.2025.01.009

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STUDY ON THE MECHANISM OF INFLUENCE OF INTERNAL GEAR RING FLEXIBILITY ON THE BIAS LOAD BEHAVIOR OF AERONAUTICAL PLANETARY GEAR SYSTEM

·Experimental Research·Testing Technology· | 更新时间：2025-01-23

- STUDY ON THE MECHANISM OF INFLUENCE OF INTERNAL GEAR RING FLEXIBILITY ON THE BIAS LOAD BEHAVIOR OF AERONAUTICAL PLANETARY GEAR SYSTEM
- Journal of Mechanical Strength Vol. 47, Issue 1, Pages: 76-83(2025)
- 作者机构：
  
  1.沈阳航空航天大学国际工程师学院，沈阳 110136
  2.沈阳航空航天大学机电工程学院，沈阳 110136
- 作者简介：
  
  LI Ming, E-mail: liming@sau.edu.cn
- 基金信息：
  
  Basic Scientific Research Project of Higher Education Department of Liaoning Province(LJKZ0196);Open Fund of National Defense Key Discipline Laboratory for Digitization of Aerospace Manufacturing Processes(SHSYS202103)
- DOI：10.16579/j.issn.1001.9669.2025.01.009
  CLC： TH132
- Published：15 January 2025，
  
  Received：08 June 2023，
  
  Revised：04 August 2023，
- 稿件说明：
移动端阅览
DING SHUO, LUO YUAN, LI MING, et al. STUDY ON THE MECHANISM OF INFLUENCE OF INTERNAL GEAR RING FLEXIBILITY ON THE BIAS LOAD BEHAVIOR OF AERONAUTICAL PLANETARY GEAR SYSTEM. [J]. Journal of mechanical strength, 2025, 47(1): 76-83.
DOI：

DING SHUO, LUO YUAN, LI MING, et al. STUDY ON THE MECHANISM OF INFLUENCE OF INTERNAL GEAR RING FLEXIBILITY ON THE BIAS LOAD BEHAVIOR OF AERONAUTICAL PLANETARY GEAR SYSTEM. [J]. Journal of mechanical strength, 2025, 47(1): 76-83. DOI： 10.16579/j.issn.1001.9669.2025.01.009.

摘要

行星齿轮系统因其体积小、质量轻、承载能力大等优点被广泛应用于航空器传动设备中，但由于各种误差造成的偏载问题无法避免，严重的偏载状态将会导致行星系统的优点无法充分发挥。以某型号航空行星齿轮系统为研究对象，探究了内齿圈柔性变化对系统偏载行为的影响机制。通过试验测量了不同的行星数以及不同轮缘厚度下内齿圈挠度、应力及应变，分析了偏载的影响机制并评估了行星数及轮缘厚度对系统偏载行为的影响程度；利用层级有限元模型完成了大型航空行星系统的高级仿真计算和分析任务，量化了内齿圈柔性变化对系统载荷分布以及齿圈偏移的影响机制。将试验与仿真计算结果在相同的参数范围内进行拟合对比，评估了仿真计算结果的准确性。研究结果为大型航空行星齿轮系统内齿圈的开发和设计提供了有针对性的结构优化指导，能够极大降低该类大型航空设备在设计和迭代过程中的成本。

Abstract

The planetary gear system is widely used in aircraft transmission equipment because of its small size

light weight and large load capacity，but the problem of bias load caused by various errors cannot be avoided

and a serious bias load condition will lead to under utilization of the advantages of the planetary system cannot be fully exploited.The influence mechanism of the flexible change of the inner gear ring on the bias load behavior of the system was investigated by taking a certain type of aeronautical planetary gear system as the research object.The deflection，stress and strain of the inner gear ring were measured by experiments with different number of planets and different rim thicknesses

and the mechanism of bias load was analyzed and the degree of influence of the number of planets and rim thickness on the bias load behavior of the system was evaluated.The advanced simulation calculation and analysis of a large aeronautical planetary system was completed by using a hierarchical finite element model to quantify the influence mechanism of the variation of inner gear ring flexibility on the load distribution and gear ring deflection of the system.The accuracy of the simulation results was evaluated by fitting the experimental and simulation results to the same parameter range for comparison.The research results provide targeted structural optimization guidance for the development and design of internal gear rings of large aeronautical planetary gear systems

which can greatly reduce the cost of this type of large aeronautical equipment in the design and iteration process.

关键词

航空行星齿轮系统内齿圈柔性试验偏载分析仿真计算

Keywords

Aerospace planetary gear systemInner ring flexibility testBias load analysisSimulation calculation

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