System Life and Reliability Modeling of a Multiple Power Takeoffs Accessory Gearbox Transmission

doi:10.1007/s12204-022-2473-y

J Shanghai Jiaotong Univ Sci ›› 2022, Vol. 27 ›› Issue (6): 855-866.doi: 10.1007/s12204-022-2473-y

收稿日期:2021-04-08 出版日期:2022-11-28 发布日期:2022-10-13

System Life and Reliability Modeling of a Multiple Power Takeoffs Accessory Gearbox Transmission

WANG Kai∗ (汪凯), WANG Xianliang (王宪良), ZHU Jiazan (朱加赞), OU Daisong (欧代松), PAN Daifeng (潘代锋)

(AECC Sichuan Gas Turbine Establishment, Chengdu 610500, China)

Received:2021-04-08 Online:2022-11-28 Published:2022-10-13

摘要/Abstract

Abstract: A mathematical model for system life and reliability of a multiple power takeoffs aeroengine accessory gearbox transmission is presented. The geometry model of gear train is distributed into several subsystems by different transmitted powers. The lives of each component are combined to determine the units, subsystems and entire system lives sequentially according to a strict series probability model. The unit and subsystem interface models are defined to dispose the loads of common components. The algorithm verification is presented and a numerical example is given to illustrate the use of this program. The initial design could not fulfill the life requirement. A design modification shows that the gear train has a more balanced life distribution by strengthening the weak parts, and the overall life of entire system is increased above the design requirement. This program can help the designer to approach an optimal accessory gearbox transmission design efficiently.

Key words: aeroengine, accessory gearbox, power takeoff, gear train, life model, reliability, numerical program

中图分类号:

V 233.1

. [J]. J Shanghai Jiaotong Univ Sci, 2022, 27(6): 855-866.

WANG Kai∗ (汪凯), WANG Xianliang (王宪良), ZHU Jiazan (朱加赞), OU Daisong (欧代松), PAN Daifeng (潘代锋). System Life and Reliability Modeling of a Multiple Power Takeoffs Accessory Gearbox Transmission[J]. J Shanghai Jiaotong Univ Sci, 2022, 27(6): 855-866.

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System Life and Reliability Modeling of a Multiple Power Takeoffs Accessory Gearbox Transmission

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