Fatigue Failure Analysis and Life Prediction of Elliptical Flexible Hinge
For the flexible hinge of compliant mechanism under the action of alternating symmetrical cyclic load, the stress concentration in the weakest area of the flexible hinge is easy to cause, resulting in the fatigue failure of the flexure hinge，taking the elliptical flexible hinges in compliant mechani...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2019-08-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.08.008 |
| _version_ | 1826882700275875840 |
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| author | Jianjun Wu Yian Jia Jihui Luo |
| author_facet | Jianjun Wu Yian Jia Jihui Luo |
| author_sort | Jianjun Wu |
| collection | DOAJ |
| description | For the flexible hinge of compliant mechanism under the action of alternating symmetrical cyclic load, the stress concentration in the weakest area of the flexible hinge is easy to cause, resulting in the fatigue failure of the flexure hinge，taking the elliptical flexible hinges in compliant mechanisms as the research object, based on the theory of pure bending in material mechanics, the calculation formula of maximum concentrated stress at the notch of an elliptical flexure hinge is derived. By using the ANSYS software, the accuracy and feasibility of the calculation formula are verified. On this basis, by introducing linear regression method, the life prediction model of elliptical flexure hinge is established, which can predict the fatigue life of elliptical flexure hinge and solve the fatigue failure problem. Finally, an example is given to verify the correctness and effectiveness of the model, an important reference for fatigue failure and life prediction of other types of flexure hinges is provided. |
| first_indexed | 2024-03-13T09:17:07Z |
| format | Article |
| id | doaj.art-64840fd40304480fb22384dc5eb753f9 |
| institution | Directory Open Access Journal |
| issn | 1004-2539 |
| language | zho |
| last_indexed | 2025-02-17T03:16:06Z |
| publishDate | 2019-08-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj.art-64840fd40304480fb22384dc5eb753f92025-01-10T13:59:23ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392019-08-0143414630644291Fatigue Failure Analysis and Life Prediction of Elliptical Flexible HingeJianjun WuYian JiaJihui LuoFor the flexible hinge of compliant mechanism under the action of alternating symmetrical cyclic load, the stress concentration in the weakest area of the flexible hinge is easy to cause, resulting in the fatigue failure of the flexure hinge，taking the elliptical flexible hinges in compliant mechanisms as the research object, based on the theory of pure bending in material mechanics, the calculation formula of maximum concentrated stress at the notch of an elliptical flexure hinge is derived. By using the ANSYS software, the accuracy and feasibility of the calculation formula are verified. On this basis, by introducing linear regression method, the life prediction model of elliptical flexure hinge is established, which can predict the fatigue life of elliptical flexure hinge and solve the fatigue failure problem. Finally, an example is given to verify the correctness and effectiveness of the model, an important reference for fatigue failure and life prediction of other types of flexure hinges is provided.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.08.008Flexible hingeStress concentrationFatigue failureLinear regressionFatigue life prediction |
| spellingShingle | Jianjun Wu Yian Jia Jihui Luo Fatigue Failure Analysis and Life Prediction of Elliptical Flexible Hinge Jixie chuandong Flexible hinge Stress concentration Fatigue failure Linear regression Fatigue life prediction |
| title | Fatigue Failure Analysis and Life Prediction of Elliptical Flexible Hinge |
| title_full | Fatigue Failure Analysis and Life Prediction of Elliptical Flexible Hinge |
| title_fullStr | Fatigue Failure Analysis and Life Prediction of Elliptical Flexible Hinge |
| title_full_unstemmed | Fatigue Failure Analysis and Life Prediction of Elliptical Flexible Hinge |
| title_short | Fatigue Failure Analysis and Life Prediction of Elliptical Flexible Hinge |
| title_sort | fatigue failure analysis and life prediction of elliptical flexible hinge |
| topic | Flexible hinge Stress concentration Fatigue failure Linear regression Fatigue life prediction |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.08.008 |
| work_keys_str_mv | AT jianjunwu fatiguefailureanalysisandlifepredictionofellipticalflexiblehinge AT yianjia fatiguefailureanalysisandlifepredictionofellipticalflexiblehinge AT jihuiluo fatiguefailureanalysisandlifepredictionofellipticalflexiblehinge |