| Presentation | 2018-11-09 Evolution of contact surface of closed Cu rivets carrying large current Xue Zhou, Kai Bo, Guofu Zhai, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The mechanism of contact surface of closed Cu rivets are significant to the static welding caused by carrying large current especially for high-power relays. In this paper, a 2D axially symmetric simplified numerical model based on Navier-Stokes equations for incompressible viscous fluid and potential equation for electric field has been built to describe the formation of static welding including the temperature distribution and contact surface changing under large current on copper contact, the melting process is considered, the thermal analysis with melting deformation on a pair of closed copper rivets contact has been numerically simulated by different current. Experiments have been carried out to get the contact force and the static welding behavior. Compared with the existing thermal simulation results, it shows that the contact surface changing in the thermal simulation is much closer to the experiment result. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Electrical contacts / static welding / thermal analysis / overcurrent |
| Paper # | EMD2018-44 |
| Date of Issue | 2018-11-02 (EMD) |
| Conference Information | |
| Committee | EMD |
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| Conference Date | 2018/11/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | International Session IS-EMD2018 |
| Chair | Shinichi Wada(TMC System) |
| Vice Chair | Yoshiki Kayano(Univ. of Electro-Comm.) |
| Secretary | Yoshiki Kayano(Muroran Inst. of Tech.) |
| Assistant | Yuichi Hayashi(ＮＡＩＳＴ) |
| Paper Information | |
| Registration To | Technical Committee on Electromechanical Devices |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evolution of contact surface of closed Cu rivets carrying large current |
| Sub Title (in English) | |
| Keyword(1) | Electrical contacts |
| Keyword(2) | static welding |
| Keyword(3) | thermal analysis |
| Keyword(4) | overcurrent |
| 1st Author's Name | Xue Zhou |
| 1st Author's Affiliation | Harbin Institute of Technology(Harbin Inst. Tech) |
| 2nd Author's Name | Kai Bo |
| 2nd Author's Affiliation | Harbin Institute of Technology(Harbin Inst. Tech) |
| 3rd Author's Name | Guofu Zhai |
| 3rd Author's Affiliation | Harbin Institute of Technology(Harbin Inst. Tech) |
| Date | 2018-11-09 |
| Paper # | EMD2018-44 |
| Volume (vol) | vol.118 |
| Number (no) | EMD-290 |
| Page | pp.pp.21-25(EMD), |
| #Pages | 5 |
| Date of Issue | 2018-11-02 (EMD) |