Topological optimization design of the front coupling rod of prosthetic knee joint based on Inspire
Abstract To enhance the movement efficiency and comfort of patients using prosthetic limbs, Altair Inspire software is employed to optimize the topology of the front coupling rod in the prosthetic knee joint motion mechanism, as well as the structure of its connecting parts. This optimization proces...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-06-01
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| Series: | Journal of Engineering and Applied Science |
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| Online Access: | https://doi.org/10.1186/s44147-025-00669-x |
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| _version_ | 1849399880256061440 |
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| author | Xiaofei Su Yan Zhu Hui Dong Jingyu Yang Lu Wang Zhengyu Zhao |
| author_facet | Xiaofei Su Yan Zhu Hui Dong Jingyu Yang Lu Wang Zhengyu Zhao |
| author_sort | Xiaofei Su |
| collection | DOAJ |
| description | Abstract To enhance the movement efficiency and comfort of patients using prosthetic limbs, Altair Inspire software is employed to optimize the topology of the front coupling rod in the prosthetic knee joint motion mechanism, as well as the structure of its connecting parts. This optimization process is aimed at achieving mass reduction of the prosthetic motion mechanism while improving its structural performance. Based on the mathematical modeling method of variable density method, the motion analysis and initial strength analysis of the front coupling member are carried out, and the distribution of its displacement, safety factor, and Mises equivalent stress were obtained. Using different shape control and aiming at reaching the stiffness maximum, the topological optimization and fitting of the front coupling members were carried out several times with the mass and thickness degrees as design constraints, and then the optimal optimization model can be obtained. It has been proved that compared with the initial model, the weight of the final optimization model was reduced by 62.15%, which greatly solves the problem of material redundancy. Besides, all the indicators met the requirements of design strength, and the optimization effect was remarkable. Finally, 3D printing technology was used to print the pre-optimized and post-optimized model components. After specific tests, it can be concluded that the topology optimization design of the front coupling rod is realistic and reasonable. |
| format | Article |
| id | doaj-art-f1160740e3a34c17837c856a3bebb02a |
| institution | Kabale University |
| issn | 1110-1903 2536-9512 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Engineering and Applied Science |
| spelling | doaj-art-f1160740e3a34c17837c856a3bebb02a2025-08-20T03:38:13ZengSpringerOpenJournal of Engineering and Applied Science1110-19032536-95122025-06-0172112110.1186/s44147-025-00669-xTopological optimization design of the front coupling rod of prosthetic knee joint based on InspireXiaofei Su0Yan Zhu1Hui Dong2Jingyu Yang3Lu Wang4Zhengyu Zhao5College of Mechanical and Automotive Engineering, Liaocheng UniversityCollege of Mechanical and Automotive Engineering, Liaocheng UniversityCollege of Mechanical and Automotive Engineering, Liaocheng UniversityCollege of Mechanical and Automotive Engineering, Liaocheng UniversityCollege of Mechanical and Automotive Engineering, Liaocheng UniversityCollege of Mechanical and Automotive Engineering, Liaocheng UniversityAbstract To enhance the movement efficiency and comfort of patients using prosthetic limbs, Altair Inspire software is employed to optimize the topology of the front coupling rod in the prosthetic knee joint motion mechanism, as well as the structure of its connecting parts. This optimization process is aimed at achieving mass reduction of the prosthetic motion mechanism while improving its structural performance. Based on the mathematical modeling method of variable density method, the motion analysis and initial strength analysis of the front coupling member are carried out, and the distribution of its displacement, safety factor, and Mises equivalent stress were obtained. Using different shape control and aiming at reaching the stiffness maximum, the topological optimization and fitting of the front coupling members were carried out several times with the mass and thickness degrees as design constraints, and then the optimal optimization model can be obtained. It has been proved that compared with the initial model, the weight of the final optimization model was reduced by 62.15%, which greatly solves the problem of material redundancy. Besides, all the indicators met the requirements of design strength, and the optimization effect was remarkable. Finally, 3D printing technology was used to print the pre-optimized and post-optimized model components. After specific tests, it can be concluded that the topology optimization design of the front coupling rod is realistic and reasonable.https://doi.org/10.1186/s44147-025-00669-xProsthetic knee jointTopology optimizationInspire software3D printing technology |
| spellingShingle | Xiaofei Su Yan Zhu Hui Dong Jingyu Yang Lu Wang Zhengyu Zhao Topological optimization design of the front coupling rod of prosthetic knee joint based on Inspire Journal of Engineering and Applied Science Prosthetic knee joint Topology optimization Inspire software 3D printing technology |
| title | Topological optimization design of the front coupling rod of prosthetic knee joint based on Inspire |
| title_full | Topological optimization design of the front coupling rod of prosthetic knee joint based on Inspire |
| title_fullStr | Topological optimization design of the front coupling rod of prosthetic knee joint based on Inspire |
| title_full_unstemmed | Topological optimization design of the front coupling rod of prosthetic knee joint based on Inspire |
| title_short | Topological optimization design of the front coupling rod of prosthetic knee joint based on Inspire |
| title_sort | topological optimization design of the front coupling rod of prosthetic knee joint based on inspire |
| topic | Prosthetic knee joint Topology optimization Inspire software 3D printing technology |
| url | https://doi.org/10.1186/s44147-025-00669-x |
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