航空科学技术2024，Vol.35Issue(3)：70-76,7.DOI:10.19452/j.issn1007-5453.2024.03.008
涡轮起动机中斜撑离合器的瞬态冲击与楔合特性研究
Analysis on the Transient Impact and Wedging Performance of the Sprag Clutch in the Turbine Starter
摘要
Abstract
Extending the steady wedging to transient impact is an important component of top-down design for sprag clutch.Based on the theory of mechanical dynamics,the impact differential equation of the sprag clutch is established by correlating the load and response characteristics of the input and output parts,and the dynamic principle and general law are revealed that contained in the process of the clutch running from transient wedging to stable transmission.On this basis,the comprehensive stress analysis model of the transmission shafts is deduced.Moreover,the inspection method of the overall performance using the contact stress,comprehensive stress and gripping angle,etc is proposed.Finally,taking a common sprag clutch component as an example,the short-term load conditions in the turbo starter environment are studied from both theoretical calculation and simulation analysis,which verifies the principle and analysis model proposed in this paper,so they are of great significant for this kind of clutch in design and verification analysis.关键词
涡轮起动机/斜撑离合器/瞬态冲击/正向设计/综合应力Key words
turbine starter/sprag clutch/transient impact/top-down design/comprehensive stress分类
机械制造引用本文复制引用
卢敏,陈利强,李政民卿..涡轮起动机中斜撑离合器的瞬态冲击与楔合特性研究[J].航空科学技术,2024,35(3):70-76,7.基金项目
航空科学基金(202028052007) Aeronautical Science Foundation of China(202028052007) （202028052007）
