Design of a Double-decker Rotating Flexible Hinge

Zhanning Zhang; Jing Zhang; Ziming Kou

doi:10.16578/j.issn.1004.2539.2019.07.015

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Design of a Double-decker Rotating Flexible Hinge

Design· Calculation | 更新时间：2022-09-24

- Design of a Double-decker Rotating Flexible Hinge
- Journal of Mechanical Transmission Vol. 43, Issue 7, Pages: 79-83(2019)
- 作者机构：
  
  1.太原理工大学机械工程学院，山西太原 030024
  2.太原理工大学山西省矿山流体控制工程实验室，山西太原 030024
  3.太原理工大学矿山流体控制国家地方联合工程实验室，山西太原 030024
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2019.07.015
  CLC：
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张展宁,张静,寇子明.一种双层回转柔性铰链的设计[J].机械传动,2019,43(07):79-83.

Zhang Zhanning,Zhang Jing,Kou Ziming.Design of a Double-decker Rotating Flexible Hinge[J].Journal of Mechanical Transmission,2019,43(07):79-83.
张展宁,张静,寇子明.一种双层回转柔性铰链的设计[J].机械传动,2019,43(07):79-83. DOI： 10.16578/j.issn.1004.2539.2019.07.015.

Zhang Zhanning,Zhang Jing,Kou Ziming.Design of a Double-decker Rotating Flexible Hinge[J].Journal of Mechanical Transmission,2019,43(07):79-83. DOI： 10.16578/j.issn.1004.2539.2019.07.015.

摘要

为了提高回转柔性铰链的平移刚度和回转角度，将直梁与曲面弧形板相结合，形成柔性铰链的变形体，进行了双层回转柔性铰链的设计。基于固定-导向梁的伪刚体模型和串并联弹簧的刚度等效方法，建立了铰链的回转刚度模型。同时，基于伪刚体法建立了柔性铰链的径向平移刚度模型；利用ANSYS软件建立了有限元仿真模型，与理论模型进行了比较，误差约为7%和3%，证明了刚度模型的正确性。通过回转刚度和平移刚度分析，得到所设计的柔性铰链静力学性能，其径向刚度为2 N/mm，可回转角度为30°。

Abstract

To increase off-axis stiffness and rotating angle, a double-decker rotating flexible hinge is designed, with straight beams and curved plates combined as the flexible body. The model of rotational stiffness is established by pseudo rigid model of fixed-oriented beam and the equivalent method of series and parallel spring. The model of off-axis stiffness is established by the pseudo rigid body method. Then a finite element simulation model is established by using ANSYS software, and compared with the theoretical model. The results show that the rotational stiffness error is about 7% and the off-axis stiffness error is about 3%, which can prove the correctness of the stiffness models. The statics performance of the flexible hinge is clear by analyzing rotating stiffness and off-axis stiffness, whose off-axis stiffness is 2 N/mm and rotating angle is 30°.

关键词

柔性铰链伪刚体法刚度模型有限元双层结构

Keywords

Flexible hingePseudo-rigid-body methodStiffness modelFinite elementDouble-decker

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