Effect of Weld Reinforcement on the Distribution of Leakage Flux Densities in Yoke Method :
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- NISHIO,Kazumasa
- Kyushu Institute of Technology
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- KATOH,Mitsuaki
- Kyushu Institute of Technology
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- MUKAE,Shizuo
- Kyushu Institute of Technology
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- SENDA,Tomio
- Oosaka University
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Abstract
The effects of height h and width w of a reinforcement on the distribution of equi-vector potential lines and leakage flux densities were calculated using FEM in the case of a yoke method. The equi-vector potential lines leaking into the space go into the reinforcement and distribute mainly along the surface of the reinforcement except near a defect. The reinforcement affects the horizontal component B_<xx> and the vertical component B_<zx> of the leakage flux density, and B_<xz> and B_<zx> have the maximum and/or minimum near the edge of the reinforcement. The difference ΔB_x between the maximum and the minimum of B_<xx> decreases when A increases and w decreases. ΔB_x calculated was compared with that measured with a Hall geneator, and a good correspondence was observed between them. Moreover, ΔB_x when the average magnetic flux density B (larger than about 1 T) passing through the specimen and a parameter h/w were changed could be estimated using a regression equation.
Journal
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- Transactions of the Japan Welding Society
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Transactions of the Japan Welding Society 18 (1), 24-31, 1987-05-01
Japan Welding Society
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Details 詳細情報について
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- CRID
- 1542543045195085440
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- NII Article ID
- 110003380164
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- NII Book ID
- AA00867091
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- Text Lang
- en
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- Data Source
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- NDL-Digital
- CiNii Articles