Contact Analysis of Sprag-type Overrunning Clutches
Sprag-type overrunning clutches are widely used in aeroengines and the helicopter transmission system. The research on the contact properties of sprag-type overrunning clutches has important significance to the design of high reliability clutch. In order to study the effects of torque and coefficien...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2023-05-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.05.019 |
| _version_ | 1826881286896091136 |
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| author | Yang Hongtu Gao Peng Yan Weiping Wang Yonghui Yang Min |
| author_facet | Yang Hongtu Gao Peng Yan Weiping Wang Yonghui Yang Min |
| author_sort | Yang Hongtu |
| collection | DOAJ |
| description | Sprag-type overrunning clutches are widely used in aeroengines and the helicopter transmission system. The research on the contact properties of sprag-type overrunning clutches has important significance to the design of high reliability clutch. In order to study the effects of torque and coefficient of friction on the contact properties of sprag-type overrunning clutches, Hertz contact theory and finite element method are used to investigate the dynamic contact properties of sprag-type overrunning clutches. The results show that both rolling and sliding occur when friction is considered, the contact stress between sprags and races is elliptically distributed with a large eccentricity, the contact stress is distributed in the parabolic shape along the length of the sprags, maximum contact stress couldn't reflect the effects of torque on contact stress, the torque transmitted beyond the clutch is positively correlated with its torsion angle, the coefficient of friction doesn't affect the maximum contact stress and the torsion angle of the clutch, the coefficient of friction is nonlinear with the sliding distance and linear with the maximum friction stress. |
| first_indexed | 2024-03-12T14:58:24Z |
| format | Article |
| id | doaj.art-4854b771a609422b931345f2e33c5ca4 |
| institution | Directory Open Access Journal |
| issn | 1004-2539 |
| language | zho |
| last_indexed | 2025-02-17T02:41:13Z |
| publishDate | 2023-05-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj.art-4854b771a609422b931345f2e33c5ca42025-01-10T14:58:03ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392023-05-014712112738199698Contact Analysis of Sprag-type Overrunning ClutchesYang HongtuGao PengYan WeipingWang YonghuiYang MinSprag-type overrunning clutches are widely used in aeroengines and the helicopter transmission system. The research on the contact properties of sprag-type overrunning clutches has important significance to the design of high reliability clutch. In order to study the effects of torque and coefficient of friction on the contact properties of sprag-type overrunning clutches, Hertz contact theory and finite element method are used to investigate the dynamic contact properties of sprag-type overrunning clutches. The results show that both rolling and sliding occur when friction is considered, the contact stress between sprags and races is elliptically distributed with a large eccentricity, the contact stress is distributed in the parabolic shape along the length of the sprags, maximum contact stress couldn't reflect the effects of torque on contact stress, the torque transmitted beyond the clutch is positively correlated with its torsion angle, the coefficient of friction doesn't affect the maximum contact stress and the torsion angle of the clutch, the coefficient of friction is nonlinear with the sliding distance and linear with the maximum friction stress.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.05.019Overrunning clutchContact propertyFinite element method |
| spellingShingle | Yang Hongtu Gao Peng Yan Weiping Wang Yonghui Yang Min Contact Analysis of Sprag-type Overrunning Clutches Jixie chuandong Overrunning clutch Contact property Finite element method |
| title | Contact Analysis of Sprag-type Overrunning Clutches |
| title_full | Contact Analysis of Sprag-type Overrunning Clutches |
| title_fullStr | Contact Analysis of Sprag-type Overrunning Clutches |
| title_full_unstemmed | Contact Analysis of Sprag-type Overrunning Clutches |
| title_short | Contact Analysis of Sprag-type Overrunning Clutches |
| title_sort | contact analysis of sprag type overrunning clutches |
| topic | Overrunning clutch Contact property Finite element method |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.05.019 |
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