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유승우,김인걸,Yoo, Seung-Woo,Kim, In-Gul 한국항공운항학회 2015 한국항공운항학회지 Vol.23 No.2
As the issuance of type certificate and production certificate for KC-100 Naraon, Korea is ranked as the State of Design and the State of Manufacture for civil aircraft specified in the Convention on International Civil Aviation. It means that another responsibilities are imposed and new frameworks are required for the airworthiness management including the continuing airworthiness. So far the minimum airworthiness management system was sufficient as the State of Registry for the aircraft operations and safety management. However, we need to establish and maintain the airworthiness management system for the effective certification and oversight of our air operators and approval holders. This paper introduces the new obligations under the Convention on International Civil Aviation, reviews the current aviation regulations and procedures and presents the strategy for the establishment of the regulatory system to ensure the airworthiness of aircraft.
유승우,진영권,Yoo, Seung-Woo,Jin, Young-Kwon 항공우주시스템공학회 2011 항공우주시스템공학회지 Vol.5 No.1
The goal of fire prevention research is to eliminate fires as a cause of fatal accidents and there are two main areas of research. One is to prevent flame propagation during in-flight and it addresses fire hazards. The other is to minimize the possibility of flame penetration or fuselage burn-through and it aims toward post-crash survival include crash protection, emergency evacuation and post-evacuation survival. Civil aviation authorities world-wide are trying to identify threats and measure performance for fire prevention. The results of research are standardized and given as general directions of test methods. This paper has prepared to study and present the means of compliance to the fire prevention requirements and applicable test methods.
유승우,박근영,정봉구,Yoo, Seung-Woo,Park, Guen-Young,Jeong, Bong-Gu 항공우주시스템공학회 2009 항공우주시스템공학회지 Vol.3 No.3
Humans rely on the availability of a supply of gaseous oxygen for survival. If the minimal requirements for oxygen are not met, both mental and physical abilities and performance are degraded rapidly. So oxygen systems are required for the aircraft operating at high altitude to prevent physical and psychological problems, or loss of consciousness in an aircraft pilot, flight crew, or passengers. If oxygen system and equipments are to be included in the type design of an airplane, applicant should consider applicable airworthiness requirements and operating rules. In this paper we analyze the various oxygen system requirements for the type of aircraft, oxygen system, and operating conditions.
유승우,정진평,이백준,Yoo, Seung-woo,Jung, Jinpyong,Yi, Baeck-Jun 항공우주시스템공학회 2013 항공우주시스템공학회지 Vol.7 No.2
Safety requirements for aircraft and system functions include minimum performance constraints for both availability and integrity of the function. These safety requirements should be determined by conducting a safety assessment. The depths and contents of aircraft system safety assessment vary depending on factors such as the complexity of the system, how critical the system is to flight safety, what volume of experience is available on the type of system and the novelty and complexity of the technologies being used. Requirements that are defined to prevent failure conditions or to provide safety related functions should be uniquely identified and traceable through the levels of development. This will ensure visibility of the safety requirements at the software and electronic hardware design level. This paper has prepared to study on promoting the efficiency of establishing hierarchical safety requirements from aircraft level function to item level through system safety processes.
고장 데이터의 확률 분석을 적용한 항공기 시스템 안전성 평가 수행 방안 연구
유승우,김인걸,Yoo, Seung-woo,Kim, In-Gul 항공우주시스템공학회 2020 항공우주시스템공학회지 Vol.14 No.no.spc
The aircraft system safety assessment, which is emphasized in the development and certification of aircraft, is a systematic and comprehensive evaluation process to determine that all relevant failure conditions have been identified and that all significant combinations of failures cannot result in unacceptable hazards. As the aircraft systems become more complex and require integrated function and performance, proper safety objectives must be established and appropriate assessments are need to be accompanied. This paper has prepared to propose the efficient probabilistic analysis of failure data to evaluate the risk level over the entire aircraft lifecycle through the safety assessment and to review the considerations for aircraft certification and safety improvement. 항공기의 개발 및 인증 과정에서 중요성이 강조되고 있는 시스템 안전성 평가는 고장 또는 결함으로 인해 발생할 수 있는 위험을 사전에 식별하고, 이에 대한 영향성을 판단하여 요구되는 수준의 안전성을 확보하기 위해 적용하는 시스템 엔지니어링 기법이다. 항공기 시스템이 복잡해지고, 통합적인 기능 및 성능이 요구되면서 항공기 개발 초기부터 적절한 안전성 목표를 수립하고, 체계적인 평가를 통해 이에 대한 검증 및 후속 조치를 이행하여야 한다. 본 논문에서는 고장 데이터의 확률 분석을 수행하는 방안을 제시하여 항공기의 전체 수명주기에 걸쳐 리스크를 진단하고 효율적인 안전성 평가를 수행하기 위한 방법론을 제시하였고, 항공기 인증 및 안전성 확보를 위해 고려해야 할 사항을 제시하였다.
유승우,이종희,Yoo, Seung-woo,Lee, Jong-hee 항공우주시스템공학회 2012 항공우주시스템공학회지 Vol.6 No.3
The contents of aircraft system safety assessment vary depending on factors such as the complexity of the system, how critical the system is to flight safety, what volume of experience is available on the type of system and the novelty and complexity of the technologies being used. If the system safety assessment is to substantiate that the developed products are 'safe enough' to be taken into use, then the system safety assessment should be planned and managed to provide the necessary assurance that all relevant hazards and failure conditions have been identified and that all significant combinations of hazards and failures which could cause those conditions have been considered. The assessment must assist the designer and management in making decisions. It must make clear what the critical features of each system are and upon which special manufacturing techniques, inspection, testing, crew drills and maintenance practice they are critically dependent. This paper has prepared to study on promoting the efficiency of aircraft system safety assessment and to present how to compile system safety assessment strategy.