文献一覧: 片桐淳 (著者)

2 0 0 0 OA PM形バーニアモータの理論とトルク特性

著者: 石崎彰田中丈志高崎一彦西方正司渡邉勝之片桐淳夫
出版者: 一般社団法人電気学会
雑誌: 電気学会論文誌D(産業応用部門誌) (ISSN:09136339)
巻号頁・発行日: vol.113, no.10, pp.1192-1199, 1993-10-20 (Released:2008-12-19)
参考文献数: 4
被引用文献数: 14

It is well known that the direct drive systems not to use the reduction gears with the clearane and backlash are required for the highly precise position control, whose motor must have high torque at very low speed. The authors have developed a new motor for this purpose and named PM vernier motor.In this paper, it is explained at first what is PM vernier motor, the construction and principle, and then the theory able to calculate the torque and how to control its speed are described. It is also shown that the calculated values of torque were agreed well with the experimental results.

2017-12-02 17:38:01
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1 0 0 0 2006年9月目黒線急行運転開始・東横線スピードアップ東京急行電鉄ダイヤ改正

著者: 片桐淳也
出版者: 鉄道図書刊行会
雑誌: 鉄道ピクトリアル (ISSN:00404047)
巻号頁・発行日: vol.56, no.12, pp.97-101, 2006-12

2021-12-18 08:12:42
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https://ci.nii.ac.jp/naid/40007456932

1 0 0 0 OA メタンハイドレート堆積層および坑井の詳細モデル化に基づく坑井周りの変形・応力解析

著者: 覺本真代坂本靖英米田純片桐淳青木一男瀧口晃安井彩森二郎
出版者: 一般社団法人資源・素材学会
雑誌: Journal of MMIJ (ISSN:18816118)
巻号頁・発行日: vol.134, no.1, pp.1-12, 2018-01-25 (Released:2018-01-24)
参考文献数: 38
被引用文献数: 1

Depressurization process is regarded as the most effective process for gas recovery method from the viewpoints of gas productivity and economic efficiency among in-situ dissociation processes of Methane Hydrate (MH) existing in marine sediments. However, it is supposed that consolidation and deformation of the stratum occurs due to MH dissociation and increase of effective stress in the stratum during operation of depressurization. Consolidation and deformation wreak negative friction on the production well. As a result, the production well may suffer large compressive or tensile stress. In the worst case, it may cause shear failure, tension failure and crushing. Therefore, for optimization of gas production process by depressurization, it is necessary to perform numerical simulation in consideration of a series of phenomenon during MH dissociation in porous media and evaluate the effect of consolidation deformation of the stratum on MH production well. In this study, using the geo-mechanical simulator named as COTHMA developed under MH21 research consortium, we carried out the field-scale numerical simulation for prediction of deformation and stress distribution around production well during depressurization. On the basis of field data for the Eastern Nankai Trough area and the structure of production well for the methane hydrate first offshore production test in 2013, the detailed model for reservoir and production well was constructed. In addition, we conducted push-out test to evaluate the frictional behavior at the interface between screen-gravel pack as the different materials constituting production well and introduced into numerical model for COTHMA. From calculation results, it was found that Mises stress occurring on base pipe installed into the interval of depressurization reached 420 MPa as yield point of steel due to the effect of friction. However, the original shape was maintained because the occurred equivalent plastic strain was about 2.95 % and this strain value was much smaller than 21 % as failure criterion. Furthermore, the effect of interface between casing and cementing was not large. This result suggested that the well structure above the interval of depressurization acted as unit and the interfacial frictional behavior between well and layer was the dominant factor on deformation behavior and stress distribution of casing and cementing.

2018-01-24 13:53:40
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1 0 0 0 PM形バーニアモータの理論とトルク特性

著者: 石崎彰田中丈志高崎一彦西方正司渡邉勝之片桐淳夫
出版者: The Institute of Electrical Engineers of Japan
雑誌: 電気学会論文誌D(産業応用部門誌) (ISSN:09136339)
巻号頁・発行日: vol.113, no.10, pp.1192-1199, 1993
被引用文献数: 19 14

It is well known that the direct drive systems not to use the reduction gears with the clearane and backlash are required for the highly precise position control, whose motor must have high torque at very low speed. The authors have developed a new motor for this purpose and named PM vernier motor.<br>In this paper, it is explained at first what is PM vernier motor, the construction and principle, and then the theory able to calculate the torque and how to control its speed are described. It is also shown that the calculated values of torque were agreed well with the experimental results.