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양보석,전순기,김호종,Yang, Bo-Suk,Jun, Soon-Ki,Kim, Ho-Jong 대한기계학회 1996 大韓機械學會論文集A Vol.20 No.5
Large scale plants are equipped with a number of the rotating machineries which ocuupy important positions in the plant system. Therefore, the most important one is a vibraiton diagnostic thchnology which can detect quickly any abnormal symptom of operating malfunction and guve operational and inspection guides adequately. A new diagnosis method is developed in this paper, in which the fuzzy set theory is introduced to diagnose the defects of ratating machinery. The selection of memgership function and the fuzzy operation model are discussed in datail here. The systme is sucessfully used for various defacts diagnosis of rotating machinery. The result indicate that realixtic application can be builtusing this approach.
양수발전소용 펌프수차${\cdot}$발전기 전동기 축계의 진동해석
양보석,최병근,김용한,하현천,Yang, Bo-Suk,Choi, Byung-Gun,Kim, Young-Han,Ha, Hyun-Cheon 한국유체기계학회 1999 한국유체기계학회 논문집 Vol.2 No.2
Pumped-storage power plants pumps the water from the lower reservoir to the upper reservoir using the extra electric power at night and generates electric power in the daytime. Currently it tends to be a high-head large-capacity machine. In this paper, we developed the computer programs for vibration analysis of the pump/turbine and generator/motor rotor system considering electromagnetic force, hydrodynamic unbalance force, dynamic characteristics of guide bearings and add mass of water. This program was verified by applying it to the real model and calculating the critical speed, natural mode and unbalance response.
양보석(Bo-Suk Yang) 한국유체기계학회 2002 유체기계 연구개발 발표회 논문집 Vol.- No.-
n this paper, the recent trends of conformity assessment activity which is carrying out at ISO is summarized. It is an increasing requirement of quality assurance systems that a company's engineers and technicians are able to demonstrate that they have the required level of knowledge and skill. This is particularly so since maintenance and inspection activities are very operator dependent and those in authority have to place great reliance on the skill, experience, judgement and integrity of the personnel involved.