The evaluation of the effects of friction in rocking vibration
In the structures whose bottoms is not fixed such as home appliances and furniture, the falls and the slip movements are caused by vibrations such as earthquakes. There is an urgent need to develop fall prevention measures in order to reduce the damage caused by falls and slip movements of structure...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2021-07-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/87/900/87_21-00137/_pdf/-char/en |
| _version_ | 1811220770319237120 |
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| author | Ryo MIDORIKAWA Tetsuya WATANABE Yoshinori NARISAWA |
| author_facet | Ryo MIDORIKAWA Tetsuya WATANABE Yoshinori NARISAWA |
| author_sort | Ryo MIDORIKAWA |
| collection | DOAJ |
| description | In the structures whose bottoms is not fixed such as home appliances and furniture, the falls and the slip movements are caused by vibrations such as earthquakes. There is an urgent need to develop fall prevention measures in order to reduce the damage caused by falls and slip movements of structures. The purpose of this study is to clarify the effect of changes in the coefficient of friction on the falling and slipping of structures by analyzing the coefficients of static and dynamic friction separately about dynamic behavior when slipping occurs during rocking vibration. As a result of analyzing the rocking vibration that changed the shape of the structure, it was clarified that the structure wasn’t fall and the slip displacement was the smallest under the conditions when rocking vibration occurred and the height of the structure was low regardless of any degree of freedom. It was clarified that the slip displacement was smaller in 2-DOF system by comparing 1-DOF system and 2-DOF system. It is thought that one of the reasons for this is the fact that the rocking angle reduces and collision frequency increases. 2-DOF system has many collisions because it collides not only between grounds and the structure but also between the upper and lower structures. Therefore, it is considered that the energy consumption of 2-DOF system is larger and the slip displacement is smaller than that of 1-DOF system. |
| first_indexed | 2024-04-12T07:48:26Z |
| format | Article |
| id | doaj.art-fd494e68c85a4caa9fc62d46ea4c837b |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-12T07:48:26Z |
| publishDate | 2021-07-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-fd494e68c85a4caa9fc62d46ea4c837b2022-12-22T03:41:40ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612021-07-018790021-0013721-0013710.1299/transjsme.21-00137transjsmeThe evaluation of the effects of friction in rocking vibrationRyo MIDORIKAWA0Tetsuya WATANABE1Yoshinori NARISAWA2Department of Mechanical Engineering, Saitama UniversityDepartment of Mechanical Engineering, Saitama UniversityDepartment of Mechanical Engineering, Saitama UniversityIn the structures whose bottoms is not fixed such as home appliances and furniture, the falls and the slip movements are caused by vibrations such as earthquakes. There is an urgent need to develop fall prevention measures in order to reduce the damage caused by falls and slip movements of structures. The purpose of this study is to clarify the effect of changes in the coefficient of friction on the falling and slipping of structures by analyzing the coefficients of static and dynamic friction separately about dynamic behavior when slipping occurs during rocking vibration. As a result of analyzing the rocking vibration that changed the shape of the structure, it was clarified that the structure wasn’t fall and the slip displacement was the smallest under the conditions when rocking vibration occurred and the height of the structure was low regardless of any degree of freedom. It was clarified that the slip displacement was smaller in 2-DOF system by comparing 1-DOF system and 2-DOF system. It is thought that one of the reasons for this is the fact that the rocking angle reduces and collision frequency increases. 2-DOF system has many collisions because it collides not only between grounds and the structure but also between the upper and lower structures. Therefore, it is considered that the energy consumption of 2-DOF system is larger and the slip displacement is smaller than that of 1-DOF system.https://www.jstage.jst.go.jp/article/transjsme/87/900/87_21-00137/_pdf/-char/enfallingslip displacementrocking vibrationfrictioncoefficients of static frictioncoefficient of dynamic friction1-dof system2-dof system |
| spellingShingle | Ryo MIDORIKAWA Tetsuya WATANABE Yoshinori NARISAWA The evaluation of the effects of friction in rocking vibration Nihon Kikai Gakkai ronbunshu falling slip displacement rocking vibration friction coefficients of static friction coefficient of dynamic friction 1-dof system 2-dof system |
| title | The evaluation of the effects of friction in rocking vibration |
| title_full | The evaluation of the effects of friction in rocking vibration |
| title_fullStr | The evaluation of the effects of friction in rocking vibration |
| title_full_unstemmed | The evaluation of the effects of friction in rocking vibration |
| title_short | The evaluation of the effects of friction in rocking vibration |
| title_sort | evaluation of the effects of friction in rocking vibration |
| topic | falling slip displacement rocking vibration friction coefficients of static friction coefficient of dynamic friction 1-dof system 2-dof system |
| url | https://www.jstage.jst.go.jp/article/transjsme/87/900/87_21-00137/_pdf/-char/en |
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