Finite Element Analysis of Flexsplines of Cone-beam Oral CT Harmonic Reducers

Wang Zhijie; Song Weidong; Zhang Yue; Guan Haoran; Zhang Fengshou

doi:10.16578/j.issn.1004.2539.2023.01.015

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Finite Element Analysis of Flexsplines of Cone-beam Oral CT Harmonic Reducers

Test·Analysis | 更新时间：2023-06-07

- Finite Element Analysis of Flexsplines of Cone-beam Oral CT Harmonic Reducers
- Journal of Mechanical Transmission Vol. 47, Issue 1, Pages: 103-107(2023)
- 作者机构：
  
  河南科技大学医学技术与工程学院，河南洛阳 471000
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2023.01.015
  CLC：
- Published：15 January 2023，
  
  Received：06 December 2021，
  
  Revised：09 January 2022，
扫描看全文
王志杰,宋卫东,张悦等.锥束口腔CT谐波减速器柔轮有限元分析[J].机械传动,2023,47(01):103-107.

Wang Zhijie,Song Weidong,Zhang Yue,et al.Finite Element Analysis of Flexsplines of Cone-beam Oral CT Harmonic Reducers[J].Journal of Mechanical Transmission,2023,47(01):103-107.
王志杰,宋卫东,张悦等.锥束口腔CT谐波减速器柔轮有限元分析[J].机械传动,2023,47(01):103-107. DOI： 10.16578/j.issn.1004.2539.2023.01.015.

Wang Zhijie,Song Weidong,Zhang Yue,et al.Finite Element Analysis of Flexsplines of Cone-beam Oral CT Harmonic Reducers[J].Journal of Mechanical Transmission,2023,47(01):103-107. DOI： 10.16578/j.issn.1004.2539.2023.01.015.

摘要

口腔CT传动精度要求高，多使用运行平稳、精度效率及安全系数高的谐波减速器，其柔轮转动时因承受交变载荷产生周期变形容易失效。对柔轮齿廓进行设计，运用SolidWorks进行建模，导入Ansys Workbench中进行了静力学分析、模态分析、瞬态动力学分析。结果表明，柔轮应变主要位于波发生器的长短轴处，且沿筒体轴向应变逐渐减小；应力最大值位于波发生器与柔轮接触位置，瞬态动力学分析时最大应力位于齿根与筒体连接处；同时，柔轮应力应变的大小还受齿宽、筒长、筒厚等影响。

Abstract

The cone-beam oral CT requires high transmission accuracy

and harmonic reducers with smooth operation

high precision efficiency and safety factor are mostly used. Its flexspline is prone to failure due to periodic deformation under alternating load when rotating. The tooth profile of the flexspline is designed

modeled by SolidWorks

and imported into the Ansys Workbench for the static analysis

modal analysis

and transient dynamic analysis. The results show that the flexural strain is mainly located at the long and short axes of the wave generator

and the axial strain decreases gradually along the cylinder. The maximum stress is located at the contact between the wave generator and the flexspline

and the maximum stress is located at the connection between the tooth root and the cylinder during the transient dynamic analysis. At the same time

the stress and strain of the flexspline are also affected by tooth width

barrel length and barrel thickness.

关键词

锥束口腔CT谐波减速器柔轮有限元分析

Keywords

Cone-beam oral CTHarmonic reducerFlexsplineFinite element analysis

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