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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
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Shuo DING1, Yuan LUO2, Ming LI2, Yongxu NING1
Journal of Mechanical Strength | 2025, 47(1) : 76 - 83
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Journal of Mechanical Strength | 2025, 47(1): 76-83
• Experimental Research·Testing Technology •
Study on the mechanism of influence of internal gear ring flexibility on the bias load behavior of aeronautical planetary gear system
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Shuo DING1, Yuan LUO2, Ming LI2, Yongxu NING1
Affiliations
  • 1.School of International Engineers, Shenyang Aerospace University, Shenyang 110136, China
  • 2.School of Mechatronics Engineering, Shenyang Aerospace University, Shenyang 110136, China
Published: 2025-01-15 doi: 10.16579/j.issn.1001.9669.2025.01.009
Outline
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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.

Aerospace planetary gear system  /  Inner ring flexibility test  /  Bias load analysis  /  Simulation calculation
Shuo DING, Yuan LUO, Ming LI, Yongxu NING. 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
Funding
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  • 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)
Appendix
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Year 2025 volume 47 Issue 1
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.01.009
  • Receive Date：2023-06-08
  • Online Date：2026-03-18
  • Published：2025-01-15
Article Data
Affiliations
History
  • Received：2023-06-08
  • Revised：2023-08-04
Funding
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)
Affiliations
    1.School of International Engineers, Shenyang Aerospace University, Shenyang 110136, China
    2.School of Mechatronics Engineering, Shenyang Aerospace University, Shenyang 110136, China

Corresponding:

LI Ming, E-mail：
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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