FRACTAL THEORETICAL MODEL OF NORMAL CONTACT STIFFNESS OF MECHANICAL JOINT INTERFACES
Based on the fractal theory,the contact stiffness model of a single asperity at each deformation stage is obtained by taking into account the deformation state of the asperity at the four stages of elasticity,the first elastoplastic,the second elastoplastic and complete plasticity. We can obtain the...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2020-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.03.020 |
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| _version_ | 1841535752740012032 |
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| author | WANG YanHui ZHANG XueLiang WEN ShuHua CHEN YongHui LAN GuoSheng |
| author_facet | WANG YanHui ZHANG XueLiang WEN ShuHua CHEN YongHui LAN GuoSheng |
| author_sort | WANG YanHui |
| collection | DOAJ |
| description | Based on the fractal theory,the contact stiffness model of a single asperity at each deformation stage is obtained by taking into account the deformation state of the asperity at the four stages of elasticity,the first elastoplastic,the second elastoplastic and complete plasticity. We can obtain the related parameters that affect the normal contact stiffness of a single asperity. The frequency index is introduced and the critical value of frequency index in each deformation stage is obtained.According to the simulation results,when the fractal dimension D is set at 1. 1 ～ 1. 9,the value of dimensionless normal contact stiffness increases monotonically with the increase of D vaiue; when the frequency index of asperity is in each interval,the value of dimensionless normal contact stiffness increases with the increase of normal contact area. |
| format | Article |
| id | doaj-art-0d49b6d0f03548b081253ebc1e54856f |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2020-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-0d49b6d0f03548b081253ebc1e54856f2025-01-15T02:27:55ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692020-01-014264865330608035FRACTAL THEORETICAL MODEL OF NORMAL CONTACT STIFFNESS OF MECHANICAL JOINT INTERFACESWANG YanHuiZHANG XueLiangWEN ShuHuaCHEN YongHuiLAN GuoShengBased on the fractal theory,the contact stiffness model of a single asperity at each deformation stage is obtained by taking into account the deformation state of the asperity at the four stages of elasticity,the first elastoplastic,the second elastoplastic and complete plasticity. We can obtain the related parameters that affect the normal contact stiffness of a single asperity. The frequency index is introduced and the critical value of frequency index in each deformation stage is obtained.According to the simulation results,when the fractal dimension D is set at 1. 1 ～ 1. 9,the value of dimensionless normal contact stiffness increases monotonically with the increase of D vaiue; when the frequency index of asperity is in each interval,the value of dimensionless normal contact stiffness increases with the increase of normal contact area.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.03.020Joint interfacesFractal theoreticalNormal contact stiffnessLoadingElastoplastic |
| spellingShingle | WANG YanHui ZHANG XueLiang WEN ShuHua CHEN YongHui LAN GuoSheng FRACTAL THEORETICAL MODEL OF NORMAL CONTACT STIFFNESS OF MECHANICAL JOINT INTERFACES Jixie qiangdu Joint interfaces Fractal theoretical Normal contact stiffness Loading Elastoplastic |
| title | FRACTAL THEORETICAL MODEL OF NORMAL CONTACT STIFFNESS OF MECHANICAL JOINT INTERFACES |
| title_full | FRACTAL THEORETICAL MODEL OF NORMAL CONTACT STIFFNESS OF MECHANICAL JOINT INTERFACES |
| title_fullStr | FRACTAL THEORETICAL MODEL OF NORMAL CONTACT STIFFNESS OF MECHANICAL JOINT INTERFACES |
| title_full_unstemmed | FRACTAL THEORETICAL MODEL OF NORMAL CONTACT STIFFNESS OF MECHANICAL JOINT INTERFACES |
| title_short | FRACTAL THEORETICAL MODEL OF NORMAL CONTACT STIFFNESS OF MECHANICAL JOINT INTERFACES |
| title_sort | fractal theoretical model of normal contact stiffness of mechanical joint interfaces |
| topic | Joint interfaces Fractal theoretical Normal contact stiffness Loading Elastoplastic |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.03.020 |
| work_keys_str_mv | AT wangyanhui fractaltheoreticalmodelofnormalcontactstiffnessofmechanicaljointinterfaces AT zhangxueliang fractaltheoreticalmodelofnormalcontactstiffnessofmechanicaljointinterfaces AT wenshuhua fractaltheoreticalmodelofnormalcontactstiffnessofmechanicaljointinterfaces AT chenyonghui fractaltheoreticalmodelofnormalcontactstiffnessofmechanicaljointinterfaces AT languosheng fractaltheoreticalmodelofnormalcontactstiffnessofmechanicaljointinterfaces |