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http://dx.doi.org/10.5293/KFMA.2004.7.5.020

Prediction of the Strength and Vibration Safety of the 30ton Thrust Turbopump Turbine by Finite Element Analysis  

Yoon, Suk-Hwan (한국항공우주공학과)
Jeon, Seong-Min (한국항공우주공학과)
Lee, Kwan-Ho (한국항공우주공학과)
Kim, Jin-Han (한국항공우주공학과)
Publication Information
The KSFM Journal of Fluid Machinery / v.7, no.5, 2004 , pp. 20-28 More about this Journal
Abstract
Static and dynamic structural analyses of a turbine bladed-disk for a liquid rocket turbopump are performed to investigate the safety level of strength and vibration at design point. During operation, turbopump is exposed to various external loads. Therefore, the effects of them should be carefully considered and properly modeled. First, due to the high rotational speed of the turbopump, effects of centrifugal forces are considered in the structural analysis. Thermal load caused by severe temperature differences is also considered. A three dimensional finite element method (FEM) is used for linear and nonlinear structural analyses with modified Newton-Raphson iteration method. After the nonlinear solution is obtained from the structural analysis, dynamic characteristics are obtained as a function of rotational speed from the linearized eigenvalue analysis at an equilibrium position. From the analysis results, characteristics of stress distribution and vibration were thoroughly examined and investigated.
Keywords
Turbopump; Turbine; Finite Element Mrthod;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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