直升机双速传动系统换挡过程冲击度研究  

Study on the impact degree of helicopter two-speed transmission system during gear shifting

作　　者：陈志刚 陈召光[1,2] 刘志辉 CHEN Zhigang;CHEN Zhaoguang;LIU Zhihui(School of Mechanical and Energy Engineering,Shaoyang University,Shaoyang 422000,China;Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing,Shaoyang University,Shaoyang 422000,China)

机构地区：[1]邵阳学院机械与能源工程学院,湖南邵阳422000 [2]邵阳学院高效动力系统智能制造湖南省重点实验室,湖南邵阳422000

出　　处：《邵阳学院学报（自然科学版）》2022年第1期36-42,共7页Journal of Shaoyang University：Natural Science Edition

基　　金：湖南省高新技术产业科技创新引领计划项目(2020GK2033);湖南省教育厅科研重点项目(20A455);湖南省自然科学基金项目(2019JJ50561);湖南省教育厅优秀青年项目(18B425);邵阳学院研究生科研创新项目(CX2020SY030)。

摘　　要：换挡冲击度研究对于提高系统传动部件的寿命、换挡品质、整机舒适性、改善其振动冲击具有重要的意义。针对某型直升机双速传动系统结构,应用拉格朗日方程及虚功原理建立变速器行星轮系的数学模型,基于Matlab/Simulink搭建换挡过程仿真模型,分析不同湿式离合器充油信号对系统冲击度的影响,仿真结果表明,离合器充油越慢,液压执行机构油压极值越接近接合油压值,冲击度越小,这为分析最优充油曲线提供了合理的仿真模型。The research on the shift impact is of great significance to improve the service life of transmission components,shift quality,overall comfort,and vibration impact of the system.For the structure of the two-speed transmission system of a helicopter,the mathematical model of the planetary gear train of transmission is established by using the Lagrange method and virtual work principle.The shift process simulation model is built based on Matlab/Simulink to analyze the impact of different wet clutch oil filling signals on the system impact.The simulation results show that a slower oil filling rate in clutch leads to a closer value to the engagement oil pressure,resulting in a smaller impact.Such a result provides a reasonable simulation model for analyzing the optimal oil filling curve.

关 键 词：双速传动系统 拉格朗日 行星轮系 冲击度 

分 类 号：TH132[机械工程—机械制造及自动化]