巻号一覧
41 巻, 6 号
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論文
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山口 健, 田中 和博原稿種別: 論文
2013 年 41 巻 6 号 p. 355-360
発行日: 2013年
公開日: 2015/06/13
ジャーナル フリーThe objective of this research was to investigate the transient torque converter performance used in an automobile. A new technique in computational fluid dynamics was introduced, which includes the inertia of the turbine in a three dimensional simulation of the torque converter during a launch condition. The simulation results were compared to experimental data. Good agreement between test and simulation was seen across the range of data. In addition, the flow structure inside the torque converter was visualized and compared to the result from a steady-state calculation.抄録全体を表示PDF形式でダウンロード (143K) -
（第２報：微小脈動調整機構の検証）小西 義昭, 古川 明徳原稿種別: 論文
2013 年 41 巻 6 号 p. 361-367
発行日: 2013年
公開日: 2015/06/13
ジャーナル フリーThe reciprocating type pulsation-free pump generates whit pulsation by a change of the discharge pressure. The conventional measures were accompanied with the cams. Because the pulsation was caused by a decline of the pump volume efficiency due to the pressure and disagreement of the quantity of volume revision, the mechanism to adjust pulsation easily by establishing the pulsation corrective is proposed in the present paper and is confirmed by an examination.抄録全体を表示PDF形式でダウンロード (158K) -
（第３報：タービン諸特性（回転部重量、翼応力、動翼共振回避、Thomas Force） を考慮したロケットターボポンプタービンの多目的最適化）瀧田 純也, 福田 太郎, 宇山 遼一, 船﨑 健 一, 内海 政春原稿種別: 論文
2013 年 41 巻 6 号 p. 368-377
発行日: 2013年
公開日: 2015/06/13
ジャーナル フリーBecause rocket turbopump turbine blades have higher loading, there is a possibility of shaft vibration problem due to “Thomas Force”. In order to reduce shaft vibrations, it is important to keep “Thomas Force”small, In the previous report, validity of optimization process for the reduction of Thomas Force was confirmed by performing Parameter Design and Multi-Objective Genetic Algorithm(MOGA). In this paper, by increasing the number of objective functions, the results of multi-objective optimization for reduction of Thomas Force and the considering the feasibility of blade structure are discussed. It was found that optimized blade reduced 10％in weight, 30％in Thomas Force, compared from the original blade.抄録全体を表示PDF形式でダウンロード (261K) -
二見 昌寛, 鈴木 正己, 天久 和正原稿種別: 論文
2013 年 41 巻 6 号 p. 378-383
発行日: 2013年
公開日: 2015/06/13
ジャーナル フリーOn a design and analysis method of wind turbine generators, Blade Element Mo-mentum(BEM)theory has been often used even now. BEM theory only requires a small computa-tional load. However, the measurement facilities such as wind tunnel experiments with two-dimensional airfoils are necessary because BEM theory uses two-dimensional airfoil performance. To find the two-dimensional airfoil performance at relatively low cost, calculation using Compu-tational Fluid Dynamics(CFD)is performed. In recent years, CFD analysis associated with de-velopment of computers becomes high speed and high performance. In this study, an analysis method of wind turbine performance using the conventional BEM theory and two-dimensional CFD is described and compared with experimental results. As a result, it was shown that the analysis method predicts the wind turbine performance with the practical accuracy.抄録全体を表示PDF形式でダウンロード (131K)
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