• 대한조선학회논문집
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• 제53권4호
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• pp.249-257
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• 2016

The purpose of this study is finding the key factors for navy to determine the necessity of naval ship PIP(Performance Improvement Program) against the altered battle field environment and politics. Recently, leading countries try to cope actively with the changing international circumstances and technology development trend in the commercial industry. In the case of domestic situation, based on the regulation, it is possible to modify the ship configurations by PIP, but there are not enough criteria and references to make a decision of necessity for the PIP program considering the naval ship acquisition planning by navy. It is necessary to acquire the obvious decision criteria for determination of PIP commencement, by the operational, political and security environment around the Korean peninsula. Considering these conditions, this study proposes the factors necessary for naval ship PIP for navy.

• 한국전자통신학회논문지
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• 제16권5호
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• pp.899-908
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• 2021

현대의 무기체계는 복잡한 체계로 구성되어 있기 때문에 성능개량 요소의 우선 순위를 도출하는 것은 상당한 어려움이 있다. 또한, 이해관계자들의 의견을 고려한 정량적 성능개량 요소 우선순위 선정 방법론에 대한 연구도 미흡한 실정이다. 본 연구에서는 K1계열 전차와 K2전차의 성능개량 요소 우선순위를 정량적으로 도출하기 위해 전차 개발 경험을 보유한 전문가들을 대상으로 설문을 수행하고 AHP, 평점법, TOPSIS 기법을 이용하여 서문 데이터를 분석하고 분석 결과로 우선순위를 정량적으로 도출하였다. 본 연구의 결과는 향후 무기체계 개발 및 성능개량 단계에서 이해관계자들의 의사결정 지표로 활용될 것으로 기대된다.

• 한국항공운항학회지
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• 제31권2호
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• pp.81-88
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• 2023

SHM (Structural Health Monitoring) technique for monitoring aircraft structural health and damage, EHM (Engine Health Monitoring) for monitoring aircraft engine performance, and APM (Application Performance Management) is used for each function. APMS (Airplane Performance Monitoring System) is a program that comprehensively applies these techniques to identify the difference between the performance manual provided by the manufacturer and the actual fuel mileage of the aircraft and reflect it in the flight plan. The main purpose of using APMS is to understand the performance of each aircraft, to plan and execute flights in an optimal way, and consequently to reduce fuel consumption. First, it is to check the fuel efficiency trend of each aircraft, check the correlation between the maintenance work performed and the fuel mileage, find the cause of the fuel mileage increase/decrease, and take appropriate measures in response. Second, it is to find the cause of fuel mileage degradation in detail by checking the trends by engine performance and fuselage drag effect. Third, the APMS is to be used in making maintenance work decisions. Through APMS, aircraft with below average fuel mileage are identified, the cause of fuel mileage degradation is identified, and appropriate corrective actions are determined. Fourth, APMS data is used to analyze the economic analysis of equipment installation investment. The cost can be easily calculated as the equipment installation cost, but the benefit is fuel efficiency improvement, and the only way to check this is the manufacturer's theory. Therefore, verifying the effect after installation and verifying the economic analysis is to secure the appropriateness of the investment. Through this, proper investment in fuel efficiency improvement equipment will be made, and fuel efficiency will be improved.