董惠敏

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:女

毕业院校:大连理工大学

学位:博士

所在单位:机械工程学院

学科:机械设计及理论

联系方式:大连理工大学机械东楼310-2

电子邮箱:donghm@dlut.edu.cn

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ELASTIC KINEMATIC AND GEOMETRIC MODEL OF HARMONIC GEAR DRIVES

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论文类型:会议论文

发表时间:2008-08-03

收录刊物:EI、CPCI-S、Scopus

卷号:2

期号:PART A

页面范围:717-725

摘要:The paper presents the first elastic meshing law and spatial elastic conjugation tooth profile for harmonic gear drives. The kinematics and geometry of harmonic drives that have a cup-type flexible spline with an oval wave generator is investigated. The deformation function of the neutral layer of a flexspline is investigated and calculation example is taken by non-linear finite element software. The mathematic model of kinematics of harmonic drive is set up, in which the spatial deformation of a flexspline is separated into a set of deformed curves on the cross sections vertical to the axis. Thus, the spatial engagement in harmonic drive can be visualized as a set of planar engagement. The properties of the instant center and the centrodes of the flexspline tooth relative to the circular spline are studied. The phenomenon of twice engagement at one tooth point of circular spline is found for the first time. The planar gearing engagement and the instant center equation are analyzed and a vigorous spatial elastic conjugation theory is provided for harmonic gear drive.