Numerical simulation of interior ballistic process of railgun based on the multi-field coupled model
Railgun launcher design relies on appropriate models. A multi-field coupled model of railgun launcher was presented in this paper. The 3D transient multi-field was composed of electromagnetic field, thermal field and structural field. The magnetic diffusion equations were solved by a finite-element...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2016-04-01
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| Series: | Defence Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914716000064 |
| _version_ | 1819204433780670464 |
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| author | Qinghua Lin Baoming Li |
| author_facet | Qinghua Lin Baoming Li |
| author_sort | Qinghua Lin |
| collection | DOAJ |
| description | Railgun launcher design relies on appropriate models. A multi-field coupled model of railgun launcher was presented in this paper. The 3D transient multi-field was composed of electromagnetic field, thermal field and structural field. The magnetic diffusion equations were solved by a finite-element boundary-element coupling method. The thermal diffusion equations and structural equations were solved by a finite element method. A coupled calculation was achieved by the transfer data from the electromagnetic field to the thermal and structural fields. Some characteristics of railgun shot, such as velocity skin effect, melt-wave erosion and magnetic sawing, which are generated under the condition of large-current and high-speed sliding electrical contact, were demonstrated by numerical simulation. |
| first_indexed | 2024-12-23T04:35:44Z |
| format | Article |
| id | doaj.art-260302125dda4214afc16693e7a2a156 |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-12-23T04:35:44Z |
| publishDate | 2016-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-260302125dda4214afc16693e7a2a1562022-12-21T17:59:54ZengKeAi Communications Co., Ltd.Defence Technology2214-91472016-04-0112210110510.1016/j.dt.2015.12.008Numerical simulation of interior ballistic process of railgun based on the multi-field coupled modelQinghua LinBaoming LiRailgun launcher design relies on appropriate models. A multi-field coupled model of railgun launcher was presented in this paper. The 3D transient multi-field was composed of electromagnetic field, thermal field and structural field. The magnetic diffusion equations were solved by a finite-element boundary-element coupling method. The thermal diffusion equations and structural equations were solved by a finite element method. A coupled calculation was achieved by the transfer data from the electromagnetic field to the thermal and structural fields. Some characteristics of railgun shot, such as velocity skin effect, melt-wave erosion and magnetic sawing, which are generated under the condition of large-current and high-speed sliding electrical contact, were demonstrated by numerical simulation.http://www.sciencedirect.com/science/article/pii/S2214914716000064RailgunElectromagnetic fieldThermal fieldStructural fieldFinite elementNumerical simulation |
| spellingShingle | Qinghua Lin Baoming Li Numerical simulation of interior ballistic process of railgun based on the multi-field coupled model Defence Technology Railgun Electromagnetic field Thermal field Structural field Finite element Numerical simulation |
| title | Numerical simulation of interior ballistic process of railgun based on the multi-field coupled model |
| title_full | Numerical simulation of interior ballistic process of railgun based on the multi-field coupled model |
| title_fullStr | Numerical simulation of interior ballistic process of railgun based on the multi-field coupled model |
| title_full_unstemmed | Numerical simulation of interior ballistic process of railgun based on the multi-field coupled model |
| title_short | Numerical simulation of interior ballistic process of railgun based on the multi-field coupled model |
| title_sort | numerical simulation of interior ballistic process of railgun based on the multi field coupled model |
| topic | Railgun Electromagnetic field Thermal field Structural field Finite element Numerical simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2214914716000064 |
| work_keys_str_mv | AT qinghualin numericalsimulationofinteriorballisticprocessofrailgunbasedonthemultifieldcoupledmodel AT baomingli numericalsimulationofinteriorballisticprocessofrailgunbasedonthemultifieldcoupledmodel |