Papers - Uchiumi Masaharu

21. Thomas/Alford Force on a Partial-Admission Turbine for the Rocket Engine Turbopump

    Kazuyuki Yada, Masaharu Uchiumi, Ken-ichi Fnazaki，JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME，vol.141，(1)，(p.011105 ～ )，2019.01

    

22. Evaluation of Heat Generation and Cooling Characteristics of Ball Bearings for Small Supersonic Aerospace Engine

    向江洋人，石原眞優，湊亮二郎，中田大将，東野和幸，内海政春，Turbomachinery，vol.46，(6)，(p.331 ～ 337)，2018.06

    

23. Nonlinear Analysis of Rotordynamic Fluid Forces in the Annular Plain Seal by Using Extended Perturbation Analysis of the Bulk-Flow Theory (Influence of Whirling Amplitude in the Case With Concentric Circular Whirl)

    Atsushi Ikemoto, Tsuyoshi Inoue, Kazukiyo Sakamoto, Masaharu Uchiumi，Journal of Tribology，vol.140，(4)，(p.041708-1 ～ 041708-15)，2018.04

    

24. Numerical Analysis of Suppression Effect of Asymmetric Slit on Cavitation Instabilities in Cascade

    Hiroki Kobayashi, Ryosuke Hagiwara, Satoshi Kawasaki, Masaharu Uchiumi, Kazuyuki Yada, Yuka Iga，JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME，vol.140，(2)，(p.021302 ～ )，2018.02

    

25. Rotordynamic Forces Acting on a Two-Stage Inducer

    Naoki Nagao, Katsuji Nagaura, Tsutomu Tamura, Satoshi Hasegawa, Masaharu Uchiumi，JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME，vol.140，(2)，(p.021112 ～ )，2018.02

    

26. One-Dimensional Analysis Method for Cavitation Instabilities of a Rotating Machinery

    Satoshi Kawasaki, Takashi Shimura, Masaharu Uchiumi, Yuka Iga，JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME，vol.140，(2)，(p.021113 ～ )，2018.02

    

27. A Study of Morphological Design in an Industrial Vertical Multistage Pump

    香川修作，渡邊裕輔，渡邉啓悦，後藤彰，内海政春，島垣満，川崎聡，Turbomachinery，vol.45，(3)，(p.165 ～ 173)，2017.03

    

28. Morphologial Design Considering Layout and Permutation of the Components for Rocket Turbopump

    川崎聡, 島垣満, 内海政春, 安達和彦，日本機械学会論文集，vol.82，(842)，(p.16-00134 ～ )，2016.08

    

29. Rotordynamic Characteristics of Floating Ring Seals in Rocket Turbopump

    徳永雄一郎, 井上秀行, 弘松純, 井口徹哉, 黒木康洋, 内海政春，International Journal of Fluid Machinery and Systems，vol.9，(3)，(p.194 ～ 204)，2016.07

    

30. Load–Displacement Relationship of a Ball Bearing With Axial, Radial, and Angular Displacements for Both the Inner and Outer Rings

    Hiroyuki Ohta, Tomoya Sakaguchi and Masaharu Uchiumi，Journal of Tribology, ASME，vol.139，(1)，(p.011103 ～ )，2016.07

    

31. A Study on the Balance Piston Design of Turbopump Considering Dynamic Characteristics

    平木 博道, 内海 政春, 川崎 聡, 井上 剛志，ターボ機械，vol.44，(4)，(p.231 ～ 241)，2016.04

    

32. Nonlinear Modeling of the Ball Bearing of the Liquid Hydrogen Turbopump for Rocket Engine and Investigation of the Asynchronous Vibration Component Using the Unsteady Vibration Analysis

    大竹 伸英, 井上 剛志, 坂口 智也, 内海 政春，SPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES，vol.15，(0)，(p.1 ～ 8)，2016.01

    

33. One-dimensional multidomain analysis of rotating cavitation

    志村 隆, 川崎 聡, 内海 政春，TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A，vol.81，(829)，(p.15 ～ 00125-15-00125)，2015.09

    

34. Theoretical Study on the Eigenvalue of Axial Vibration of Balance Piston Mechanism

    平木 博道, 内海 政春，ターボ機械，vol.43，(6)，(p.358 ～ 366)，2015.06

    

35. Studies on the Unsteady Aerodynamic Force and Turbine Efficiency of a Partial Admission Supersonic Turbine for a Rocket Engine

    徳山雄己, 船﨑健一, 加藤大雅, 島垣満, 内海政春，Turbomachinery，vol.43，(505)，(p.313 ～ 319)，2015.05

    

36. Theoretical Study on Axial Damping Characteristics of Balance Piston Mechanism

    平木 博道, 内海 政春, 木村 俊哉, 吉田義樹，ターボ機械，vol.43，(2)，(p.76 ～ 82)，2015.02

    

37. A Study of the Stability for Axial Thrust Force Vibration in Balancing Piston Mechanism

    林 光昭, 都丸 裕司, 川崎 聡, 志村 隆, 内海 政春，Turbomachinery，vol.41，(10)，(p.625 ～ 632)，2013.10

    

38. Nonstationary Vibration Analysis of a High-Pressure Liquid Hydrogen Turbopump during the Fast Acceleration Considering the Effect of Rotordynamic Fluid Forces : Comparison with the Synchronous Component of the Experimental Result

    荒木 裕太, 井上 剛志, 内海 政春, 安達 和彦，Turbomachinery，vol.41，(10)，(p.608 ～ 616)，2013.10

    

39. Rotordynamic Fluid Forces Acting on Floating Ring Seal

    弘松 純, 内海 政春, 長尾 直樹, 江口 真人，Turbomachinery，vol.41，(10)，(p.617 ～ 624)，2013.10

    

40. Parameter Design for a Rocket Turbopump Turbine : 3rd Report : Multi-Objective Optimization of a Rocket Turbopump Turbine Considering the Turbine Characteristics (i. e., Rotor Weight, Blade Stress, Avoidance of Blade Resonance and Thomas Force)

    瀧田 純也, 福田 太郎, 宇山 遼一, 船崎 健一, 内海 政春，Turbomachinery，vol.41，(6)，(p.368 ～ 377)，2013.06