Design and Analysis of Variable-Stiffness Fast-Steering Mirror
The non-variable stiffness of the flexible hinge in the fast-steering mirror (FSM) cannot adapt to varying load demands. To address this issue, this paper presents an innovative variable-stiffness rotational mechanism designed for use with FSMs. Firstly, the working principle of the variable-stiffne...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Actuators |
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| Online Access: | https://www.mdpi.com/2076-0825/13/1/5 |
| _version_ | 1827372990177738752 |
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| author | Jin Luo Yao Mao Wang Dai Feixiang Yang Luyao Zhang Li Miao |
| author_facet | Jin Luo Yao Mao Wang Dai Feixiang Yang Luyao Zhang Li Miao |
| author_sort | Jin Luo |
| collection | DOAJ |
| description | The non-variable stiffness of the flexible hinge in the fast-steering mirror (FSM) cannot adapt to varying load demands. To address this issue, this paper presents an innovative variable-stiffness rotational mechanism designed for use with FSMs. Firstly, the working principle of the variable-stiffness mechanism is introduced, and the influence of the length of each structure on the stiffness and the nonlinear influence are analyzed. Then, the variable-stiffness mechanism is applied to the FSM for the variable-stiffness experiment and variable-load experiment. The experimental results show that the variable-stiffness mechanism designed in this paper can realize the change in stiffness. The errors between the experimental value and the theoretical value of the three sets of experiments are +5.72%, +7.57%, and +6.57%. The FSM’s stiffness nonlinearity is very small, and the resonance frequency of the FSM before and after increasing the load can be consistent. The variable-stiffness mechanism can change the frequency characteristics by changing the rotational stiffness of the FSM. |
| first_indexed | 2024-03-08T11:09:32Z |
| format | Article |
| id | doaj.art-92d051449ba24479853481606bc23320 |
| institution | Directory Open Access Journal |
| issn | 2076-0825 |
| language | English |
| last_indexed | 2024-03-08T11:09:32Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj.art-92d051449ba24479853481606bc233202024-01-26T14:10:29ZengMDPI AGActuators2076-08252023-12-01131510.3390/act13010005Design and Analysis of Variable-Stiffness Fast-Steering MirrorJin Luo0Yao Mao1Wang Dai2Feixiang Yang3Luyao Zhang4Li Miao5National Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences, Chengdu 610209, ChinaNational Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences, Chengdu 610209, ChinaNational Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences, Chengdu 610209, ChinaNational Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences, Chengdu 610209, ChinaInstitute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, ChinaNational Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences, Chengdu 610209, ChinaThe non-variable stiffness of the flexible hinge in the fast-steering mirror (FSM) cannot adapt to varying load demands. To address this issue, this paper presents an innovative variable-stiffness rotational mechanism designed for use with FSMs. Firstly, the working principle of the variable-stiffness mechanism is introduced, and the influence of the length of each structure on the stiffness and the nonlinear influence are analyzed. Then, the variable-stiffness mechanism is applied to the FSM for the variable-stiffness experiment and variable-load experiment. The experimental results show that the variable-stiffness mechanism designed in this paper can realize the change in stiffness. The errors between the experimental value and the theoretical value of the three sets of experiments are +5.72%, +7.57%, and +6.57%. The FSM’s stiffness nonlinearity is very small, and the resonance frequency of the FSM before and after increasing the load can be consistent. The variable-stiffness mechanism can change the frequency characteristics by changing the rotational stiffness of the FSM.https://www.mdpi.com/2076-0825/13/1/5fast-steering mirror (FSM)flexible hingevariable-stiffness mechanismresonance frequency |
| spellingShingle | Jin Luo Yao Mao Wang Dai Feixiang Yang Luyao Zhang Li Miao Design and Analysis of Variable-Stiffness Fast-Steering Mirror Actuators fast-steering mirror (FSM) flexible hinge variable-stiffness mechanism resonance frequency |
| title | Design and Analysis of Variable-Stiffness Fast-Steering Mirror |
| title_full | Design and Analysis of Variable-Stiffness Fast-Steering Mirror |
| title_fullStr | Design and Analysis of Variable-Stiffness Fast-Steering Mirror |
| title_full_unstemmed | Design and Analysis of Variable-Stiffness Fast-Steering Mirror |
| title_short | Design and Analysis of Variable-Stiffness Fast-Steering Mirror |
| title_sort | design and analysis of variable stiffness fast steering mirror |
| topic | fast-steering mirror (FSM) flexible hinge variable-stiffness mechanism resonance frequency |
| url | https://www.mdpi.com/2076-0825/13/1/5 |
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