Dynamic Analysis of Planar Linkage Mechanism Considering the Clearance of Kinematic Pair
In order to accurately analyze the influence of the kinematic pair clearance on the mechanism dynamic characteristics， a nonlinear stiffness coefficient is introduced based on the Gonthier contact force model， and an improved Gonthier model is obtained， which can more accurately describe the elastic...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2022-09-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2022.09.008 |
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| _version_ | 1841548850828935168 |
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| author | Guoguang Jin Xurui Hou Zhan Wei Zhimin Wang Yanyan Song |
| author_facet | Guoguang Jin Xurui Hou Zhan Wei Zhimin Wang Yanyan Song |
| author_sort | Guoguang Jin |
| collection | DOAJ |
| description | In order to accurately analyze the influence of the kinematic pair clearance on the mechanism dynamic characteristics， a nonlinear stiffness coefficient is introduced based on the Gonthier contact force model， and an improved Gonthier model is obtained， which can more accurately describe the elastic force in the kinematic pair. The system dynamic equation of planar four-bar linkage with two-state clearance is established using Newton Euler equation， and the correctness of the clearance model is verified by Adams. The influence of different clearance， rotation speed and friction coefficient on the acceleration of the rocker is analyzed， and the contact and free states of the inner shaft of the kinematic pair are studied. The results show that the shaft has three states of collision， contact and freedom under certain conditions. After the system becomes stable， the shaft is always in contact with the kinematic pair， which indicates that the motion of the shaft in the kinematic pair is not random collision. The driving force of the mechanism is mainly transmitted by the contact force generated by the deformation of the contact point， rather than the collision force between the shaft and the bearing. The results can predict the position of the clearance， and have important theoretical value for restraining the vibration and wear of the mechanism caused by the clearance. |
| format | Article |
| id | doaj-art-a401001f2ae740d4a52dc8e5ca31dfa1 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2022-09-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-a401001f2ae740d4a52dc8e5ca31dfa12025-01-10T13:59:55ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392022-09-0146596630487284Dynamic Analysis of Planar Linkage Mechanism Considering the Clearance of Kinematic PairGuoguang JinXurui HouZhan WeiZhimin WangYanyan SongIn order to accurately analyze the influence of the kinematic pair clearance on the mechanism dynamic characteristics， a nonlinear stiffness coefficient is introduced based on the Gonthier contact force model， and an improved Gonthier model is obtained， which can more accurately describe the elastic force in the kinematic pair. The system dynamic equation of planar four-bar linkage with two-state clearance is established using Newton Euler equation， and the correctness of the clearance model is verified by Adams. The influence of different clearance， rotation speed and friction coefficient on the acceleration of the rocker is analyzed， and the contact and free states of the inner shaft of the kinematic pair are studied. The results show that the shaft has three states of collision， contact and freedom under certain conditions. After the system becomes stable， the shaft is always in contact with the kinematic pair， which indicates that the motion of the shaft in the kinematic pair is not random collision. The driving force of the mechanism is mainly transmitted by the contact force generated by the deformation of the contact point， rather than the collision force between the shaft and the bearing. The results can predict the position of the clearance， and have important theoretical value for restraining the vibration and wear of the mechanism caused by the clearance.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2022.09.008Contact force modelClearance of kinematic pairCollisionDynamics |
| spellingShingle | Guoguang Jin Xurui Hou Zhan Wei Zhimin Wang Yanyan Song Dynamic Analysis of Planar Linkage Mechanism Considering the Clearance of Kinematic Pair Jixie chuandong Contact force model Clearance of kinematic pair Collision Dynamics |
| title | Dynamic Analysis of Planar Linkage Mechanism Considering the Clearance of Kinematic Pair |
| title_full | Dynamic Analysis of Planar Linkage Mechanism Considering the Clearance of Kinematic Pair |
| title_fullStr | Dynamic Analysis of Planar Linkage Mechanism Considering the Clearance of Kinematic Pair |
| title_full_unstemmed | Dynamic Analysis of Planar Linkage Mechanism Considering the Clearance of Kinematic Pair |
| title_short | Dynamic Analysis of Planar Linkage Mechanism Considering the Clearance of Kinematic Pair |
| title_sort | dynamic analysis of planar linkage mechanism considering the clearance of kinematic pair |
| topic | Contact force model Clearance of kinematic pair Collision Dynamics |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2022.09.008 |
| work_keys_str_mv | AT guoguangjin dynamicanalysisofplanarlinkagemechanismconsideringtheclearanceofkinematicpair AT xuruihou dynamicanalysisofplanarlinkagemechanismconsideringtheclearanceofkinematicpair AT zhanwei dynamicanalysisofplanarlinkagemechanismconsideringtheclearanceofkinematicpair AT zhiminwang dynamicanalysisofplanarlinkagemechanismconsideringtheclearanceofkinematicpair AT yanyansong dynamicanalysisofplanarlinkagemechanismconsideringtheclearanceofkinematicpair |