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水中への雷電流拡散様相
https://doi.org/10.14988/pa.2017.0000013870
https://doi.org/10.14988/pa.2017.0000013870d0bc1306-789f-4560-8071-6c83e179d382
名前 / ファイル | ライセンス | アクション |
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023055040008.pdf (1.7 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
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公開日 | 2015-02-24 | |||||||||||
タイトル | ||||||||||||
言語 | ja | |||||||||||
タイトル | 水中への雷電流拡散様相 | |||||||||||
タイトル | ||||||||||||
言語 | ja-Kana | |||||||||||
タイトル | スイチュウ エノ ライデンリュウ カクサン ヨウソウ | |||||||||||
タイトル | ||||||||||||
言語 | en | |||||||||||
タイトル | Lightning current diffusion into water | |||||||||||
言語 | ||||||||||||
言語 | jpn | |||||||||||
キーワード | ||||||||||||
主題 | 電流分布, 海上構造物, 雷電流, 塩分濃度, 海 current distribution, marine structure, lightning current, salinity, sea |
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資源タイプ | ||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
資源タイプ | departmental bulletin paper | |||||||||||
ID登録 | ||||||||||||
ID登録 | 10.14988/pa.2017.0000013870 | |||||||||||
ID登録タイプ | JaLC | |||||||||||
アクセス権 | ||||||||||||
アクセス権 | open access | |||||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
著者 |
開川, 信一郎
× 開川, 信一郎× 池田, 陽紀× 長岡, 直人
WEKO
17775
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著者所属 | ||||||||||||
ja | ||||||||||||
開川, 信一郎 / Power System Analysis Laboratory, Electrical and Electric Engineering, Graduate School of Science and Engineering, Doshisha University | ||||||||||||
著者所属 | ||||||||||||
ja | ||||||||||||
池田, 陽紀 / Power System Analysis Laboratory, Electrical and Electric Engineering, Graduate School of Science and Engineering, Doshisha University | ||||||||||||
著者所属 | ||||||||||||
ja | ||||||||||||
長岡, 直人 / Power System Analysis Laboratory, Electrical and Electric Engineering, Graduate School of Science and Engineering, Doshisha University | ||||||||||||
所属機関識別子種別 | ||||||||||||
値 | kakenhi | |||||||||||
所属機関識別子 | ||||||||||||
値 | 34310 | |||||||||||
抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | 数値電磁界解析手法の一つである時間領域差分法(FDTD法)を用いて水中における電流分布を明らかにした。雷電流は表皮効果により海面付近の浅い部分に集中し、その傾向は海水の塩分濃度が大となるほど顕著となる。一方、塩分濃度が小であるほど、雷電流は海底方向へと侵入する。海上を航行する船舶は耐雷対策のため、雷電流は海面付近の浅い部分にて海中へと放出し、機器の接地は可能な限り深い部分で取る必要がある。湖や河川を航行する船舶は、淡水における表皮厚を考慮すると、独立接地を取ることは難しい。接地抵抗を小とするため、雷保護用接地板の面積は可能な限り大とするべきである。 | |||||||||||
言語 | ja | |||||||||||
抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | Lightning current distribution into water is clarified by means of finite difference time domain (FDTD) method, which is one of numerical electromagnetic analysis methods. The lightning current is concentrated on the sea surface due to skin effect. The tendency becomes notable with the increase of salinity of seawater. On the other hand, the lightning current diffuses toward the seabed with the decrease of the salinity. A ship on the sea has to release a lightning current into a surface portion of seawater, and has to have earth-plate(s) for grounding installed apparatus as deep as possible to protect from a lightning. The independent earthing is difficult to realize for the ship on the lake or river due to the skin depth of the freshwater. The area of the earth-plate for the lightning protection should be increased as much as possible to decrease its grounding resistance. | |||||||||||
言語 | en | |||||||||||
書誌情報 |
ja : 同志社大学理工学研究報告 en : The Science and Engineering Review of Doshisha University 巻 55, 号 4, p. 349-354, 発行日 2015-01-31 |
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出版者 | ||||||||||||
言語 | ja | |||||||||||
出版者 | 同志社大学理工学研究所 | |||||||||||
出版者(英) | ||||||||||||
言語 | en | |||||||||||
出版者 | Science and Engineering Research Institute of Doshisha University | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | PISSN | |||||||||||
収録物識別子 | 00368172 | |||||||||||
書誌レコードID | ||||||||||||
収録物識別子タイプ | NCID | |||||||||||
収録物識別子 | AN00165868 | |||||||||||
権利者情報 | ||||||||||||
権利者名 | 同志社大学理工学研究所 | |||||||||||
言語 | ja | |||||||||||
権利者名 | Science and Engineering Research Institute of Doshisha University | |||||||||||
言語 | en | |||||||||||
関連サイト | ||||||||||||
関連タイプ | isFormatOf | |||||||||||
識別子タイプ | URI | |||||||||||
関連識別子 | https://doors.doshisha.ac.jp/opac/opac_link/bibid/SB00960326/?lang=0 | |||||||||||
言語 | ja | |||||||||||
関連名称 | 掲載刊行物所蔵情報へのリンク / Link to Contents | |||||||||||
フォーマット | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | application/pdf | |||||||||||
出版タイプ | ||||||||||||
出版タイプ | VoR | |||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
日本十進分類法 | ||||||||||||
主題 | 541.54 |