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

Authors :: Takida, Junya
Fukuda, Taro
Uyama, Ryoichi
Funazaki, Kenichi
Uchiumi, Masaharu
Source :: 宇宙航空研究開発機構研究開発資料 = JAXA Research and Development Memorandum. :1-11
Publication Year :: 2013
Publisher :: 宇宙航空研究開発機構(JAXA), 2013.
Abstract: 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.<br />形態: カラー図版あり<br />Physical characteristics: Original contains color illustrations<br />資料番号: AA0065514000<br />レポート番号: JAXA-RM-12-007

Subjects :: Thomas Force
Rocket Turbopump
Multi-Objective Genetic Algorithm (MOGA)
Parameter Design
Self-Organizing Map(SOM)

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