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극저온용 액중펌프의 임펠러 및 샤프트 진동해석에 관한 연구
권병수(Byung Soo Kweon),이치우(Chi-Woo Lee),신유인(Yoo In Shin),이중섭(Chung-Seob Yi) 한국기계가공학회 2017 한국기계가공학회지 Vol.16 No.2
In this research, reverse engineering was applied to the product manufactured by “Vanzetti” from Italy to develop a localized cryogenic submerged pump used in small-scale LNG liquefaction plants. The results of modal analysis of the impeller and shaft confirmed that the resonance frequency of the impeller and shaft played an important role in the rotor. Modal analysis of the rotor confirmed that the forcing frequency had no influence on the resonance phenomenon.
권병수(Byung Soo Kweon),이치우(Chi-Woo Lee),이중섭(Chung-Seob Yi) 한국기계가공학회 2016 한국기계가공학회지 Vol.15 No.6
The purpose of this study is to examine the basic design of a submerged cryogenic pump, which is a two stage impeller pump. We limited this study to the impeller design of the submerged pump. We calculated its velocity triangle based on the impeller blade configuration and, in order to check its natural frequency, we carried out a modal test using a finite element method (FEM) analysis. Basically, modal test results had quite similar to FEM analysis.
권병수(Byung Soo Kweon),이중섭(Chung-Seob Yi),이치우(Chi-Woo Lee) 한국기계가공학회 2017 한국기계가공학회지 Vol.16 No.3
This study represents basic research for the development of submerged pump technology applicable to transfer and storage of a cryogenic liquids. Its purpose is to secure baseline design data by applying reverse engineering to the process of developing a submerged cryogenic pump. The two-stage model included in the ARTICK Series LNG Submerged Pump produced by Vanzetti of Italy was selected for analysis for development of a localized product, and was disassembled for reverse engineering. The pump was disassembled after analyzing its processing/assembly characteristics such as shrinkage of fittings. In addition, the materials used in manufacturing of the main components were analyzed, and the ingredients were confirmed. As a result, a design drawing for each component required for product development was secured via foundational design, and a test product was manufactured by maximizing the application of appropriate domestic technologies.