| S形折叠式柔性铰链结构设计 |
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| 引用本文： | 闫凯,张静,寇子明.S形折叠式柔性铰链结构设计[J].中国机械工程,2017,28(14):1696. |
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| 作者姓名： | 闫凯 张静 寇子明 |
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| 作者单位： | 1.太原理工大学机械工程学院，太原，030024
2.太原理工大学山西省矿山流体控制工程实验室，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，太原，030024 |
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| 基金项目： | 国家自然科学基金资助项目（51505319）；
太原理工大学校基金资助项目(2014TD040)；
太原理工大学人才引进基金资助项目（tyut-rc201448a）
National Natural Science Foundation of China （No. 51505319） |
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| 摘 要： | 为了减小柔性铰链的转动刚度，依据串并联关系，设计了S形折叠式柔性铰链。使用伪刚体法和能量法，建立了S形柔性铰链的刚度模型。利用ANSYS建立了该柔性铰链的有限元模型，对铰链进行了刚度和应力分析，并将其与理论值进行了比较，得到刚度误差约为3%，验证了刚度模型的准确性。当转角达到最大值±35°时，安全系数为4，符合设计要求。
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| 关 键 词： | 柔性铰链 伪刚体法 能量法 等效刚度 有限元分析 |
Structure Design of S-type Foldable Flexible Hinges |
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| YAN Kai,ZHANG Jing,KOU Ziming.Structure Design of S-type Foldable Flexible Hinges[J].China Mechanical Engineering,2017,28(14):1696. |
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| Authors: | YAN Kai ZHANG Jing KOU Ziming |
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| Affiliation: | 1.College of Mechanical Engineering,Taiyuan University of Technology,Taiyuan，030024
2.Shanxi Province Mineral Fluid Controlling Engineering Laboratory,Taiyuan University of Technology,Taiyuan，030024
3.National-local Joint Engineering Laboratory of Mining Fluid Control,Taiyuan University of Technology,Taiyuan，030024 |
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| Abstract: | According to principles of flexure hinge series and parallel relationship, a S-type foldable flexible hinge was designed in order to reduce flexibility and get a larger corner of the flexible hinges. Using pseudo rigid-body method and energy method, the stiffness model of S-type flexure hinges was deduced. By ANSYS, a finite element model of the flexible hinges was built, and the stiffness and stress analyses of the S-type hinges were carried out. It is found that the stiffness of errors are about 3% by comparing the simulation values and theoretical values. As a result, the stiffness model of S-type flexure hinges is proved right. When the rotational degrees about the flexure hinge are up to ±35°, the safety of factor is as 4. So the S-type foldable flexible hinges fully meet the design requirements. |
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| Keywords: | flexure hinge pseudo-rigid-body method energy method equivalent stiffness finite element analysis |
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