• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.42 no.8
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• pp.713-721
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• 2014

In Europe and USA, new programs called GRC(Green Rotorcraft) and SRW (Subsonic Rotary Wing program) respectively, have been currently underway for developing the next generation rotorcraft. The final goal is to develope fuel-efficient/environmental-friendly tilt-rotor civilian rotorcraft, which can partly replace short-range regional aircrafts. Also for safe operation, the new rotorcraft technology is cooperated with the new air transport management(ATM) system, called SESAR(Single European Sky ATM Research) and NextGen(Next Generation Air Transport System) in Europe and USA. In addition to achieve the final goal, the tilt-rotor aircraft, they are trying to improve the performance of conventional helicopters by adopting more efficient propulsion system, active rotor system, and reducing internal and external noise. Especially in GRC program of Europe, the environmental factors such as noise, fuel efficiency, reduction of emission gas(CO2, NOx), are focused for the new technologies.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1535-1538
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• 2012

항공, 자동차, 로봇 등 안전-필수 분야에서 IT 융합 기술이 널리 사용되고 있다. 이들 분야에서 사용되는 IT 핵심 요소 중의 하나가 컨트롤러이다. 컨트롤러의 오 동작은 안전과 매우 밀접하기 때문에, 개발된 컨트롤러의 기능이 정확하다는 것을 입증해야 한다. 본 논문에서는 정형 기법을 이용하여 기능적으로 정확한 컨트롤러 개발 사례를 보인다.

• Journal of Advanced Navigation Technology
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• v.27 no.6
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• pp.710-715
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• 2023

Urbanization brings many challenges such as traffic, housing, and environment. To solve these problems, researchers are working on new transportation systems like urban air mobility (UAM). UAM aircraft should fly safely without burdening the existing air traffic system in the early stage of low-density operation. The airspace should also be managed and operated efficiently. Therefore it is important to make urban air traffic predictable by using corridors and collecting data on low-density operations in the early stage. For this purpose various simulations are needed before operation to create scenarios that estimate potential collisions between UAM aircraft and to evaluate the risks of aircraft spacing, loss of separation (LoS), and near mid air collision (NMAC). This paper focuses on identifying the requirements and considerations for setting separation standards for urban air traffic based on the results of studies.

• The Korean Journal of Air & Space Law and Policy
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• v.35 no.1
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• pp.153-180
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• 2020

This study is meaningful in finding out what legal and policy issues need to be improved in order to foster the aircraft industry, which is relatively underdeveloped compared to the fact that some heavy industries, such as the automobile industry and shipbuilding industry, have achieved a high level of production and technology globally. Korea's aircraft industry has been growing at a slower pace than other industries, largely due to the country's economic growth and the lack of a market structure to properly use variables such as the level of development in related industries, aircraft technology and demand for aircraft manufacturing. While most industries are privately led by the market structure of the competition system, heavy industries such as the aircraft industry generally grow under the market structure of the incomplete competition system, because only by securing huge initial investment costs, high technology, and sufficient demand, they can maintain minimum economic feasibility. The Korean aircraft industry was focused on developing and mass-producing military aircraft focusing on military demand, but it sought to turn the tide by signing the BASA (Bileral Aviation Safety Agreement) with the U.S. A preliminary feasibility study was conducted in 2010 to develop next-generation medium-sized aircraft, but was cancelled due to differences in position with Canada's Bombardier, which is subject to the concourse, and Korea Aerospace Industries (KAI) is pushing for the production of Bombardier's Q400 license on its own. Compared to the mid-to-large sized civil aircraft that are facing difficulties in development, KAI and KARI are successfully developing technologies to unmanned aerial vehicles and civil helicopters. In addition, the unmanned aerial vehicle sector is not yet suitable for manufacturers that have an exclusive global influence, so we believe that it is necessary to pursue government-led research and development projects with a focus on the areas of commercial helicopters and unmanned aerial vehicles in order to foster the aircraft industry in the future. In addition, since military aircraft such as KT-1 and T-50 are currently being exported smoothly, and it cannot be overlooked that the biggest demand for aircraft manufacturing in the Korea is the military, it is necessary to push forward national R&D projects and defense R&D program simultaneously to enable both civilian-military development. However, there are many differences between the two projects in the way they are implemented, the department in charge and the royalty system. Through this study, we learned about the technology ownership and implementation rights of national R&D projects and defense R&D programs, as well as the royalty system. In addition, problems with the system were identified and improvement measures were derived.

• Bulletin of Food Technology
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• v.14 no.2
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• pp.94-98
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• 2001

외식, 단체급식의 증가 등으로 인하여 식중독의 발생이 날로 대형화, 다양화되어 갈 것으로 전망됨에 따라 식품에 대한 철저한 위생관리가 요구되고 있다.식품의 안전성을 확보하기 위한 위생관리 제도로 국제적으로 인식되고 있는 HACCP(hazard analysis critical control point)란 식품원료의 생산단계에서부터 시작하여 제조.가공, 보존, 유통.판매를 통하여 최종적으로 소비자가 섭취할 때까지의 모든 단계에서 발생할 우려가 있는 생물학적, 화학적, 물리적 위해요소에 대해 조사.분석하고, 각 위해요소에 대한 방지 방법을 구축하여 계획적으로 감시.관리함으로써 제품의 안전성을 사전에 확보하고자 하는 체계적인 관리방법이다. HACCP 계획은 위해요소 분석, 중요관리점 결정, 한계기준 설정, 모니터링 방법 확립, 개선조치 방법 확립, 검증절차 확립, 기록 유지 및 문서화 방법 확립의 과정을 거쳐개발되며, 최종제품을 검사하는 기존의 사후 관리적 방식과는 달리 HACCP는 중요관리점을 확인하고 모니터링 함으로써 최종제품의 위생안전성을 담보하는 예방적 관리방법이다. 1960년대 미국 항공우주국(NASA)에서 우주비행사들의 우주식에 대한 안전성을 확보하기 위한 연구에서 시작된 HACCP는 현재 세계 각국에서 식품의 안전성을 보증하는 과학적이고 체계적인 관리제도로 평가받고 있다.

• Current Industrial and Technological Trends in Aerospace
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• v.7 no.1
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• pp.105-112
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• 2009

Aerospace and Defense(A&D) industry is the representative extended enterprise that develops products by collaborating among suppliers operating individual information system(IS). Efficient collaborative working environments are essential component to achieve successful business and collaboration environments based on IS have been applied to support coherent process usage and securely share the information through the entire product lifecycle phases. This paper describes the status of information system management of the leading A&D enterprises and their information management processes. It also introduces the case studies of enterprises implementing product lifecycle management(PLM) solution to realize stable collaborative tools between customer and supplier.

• Journal of Advanced Navigation Technology
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• v.15 no.5
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• pp.687-695
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• 2011

The defect caused by the software industry that is the source of knowledge-centric, information-centric and technology-centric affects an engine which operate a major role for operation of aircraft. Therefore, we should minimize the danger from the defect by strengthening the stability of aviation through the stability analysis of software. In this paper, we examine the laws and systems about the aircraft defects and software safety and propose the enhancement and the enactment of the law or measures to strengthen aviation safety. We should the existing law or system as items, such as the revision related to the safety analysis, standards of quality assurance including safety, application of quality assurance that you must attach the safety analysis report, assessment of detailed instructions of certification authorities. In addition, we should enact the new law and system as items such as the mandatory software evaluation and certification, continuous assessment based on the software life cycle, mandatory introduction of a standardized development methodology, strengthening of advanced workforce system. We can expect the improvement of software quality and an enhanced aviation safety by improving existing laws or systems and enacting new laws or systems.

• Proceedings of the Safety Management and Science Conference
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• 2013.11a
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• pp.615-623
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• 2013

오늘날 기술의 발전으로 시스템들은 점차 대형화 복잡화 되어가고 있다. 이처럼 점차 대형화 복잡화 되어가고 있는 시스템들은 더욱 커진 사고 및 고장에 대한 위험을 내재하게 된다. 또한 대형 복합 시스템에서 발생하는 사고 및 고장은 바로 큰 재산피해나 인명피해와 직결 될 수 있다. 따라서 체계적인 안전관리의 필요성이 점차 커지고 있다. 이에 대응하여 철도, 항공, 해양 등의 산업에서는 각 산업에 적합한 안전관리체계를 수립하려 노력하고 있으며, 표준 및 매뉴얼을 제정하여 보급에 앞장서고 있다. 또한 시스템에서 전장품 및 소프트웨어가 차지하는 비중이 커지면서 기능안전이 안전분야의 이슈가 되고 있다. 이에 따라 IEC 61508, ISO 26262, IEC 61511 등 기능안전관련 표준들이 제정되어 기능안전을 달성하기 위한 기반을 제공하고 있다. 한편 국내 철도산업에서도 철도안전법의 재정을 기점을 철도 산업전반에 걸쳐 많은 환경변화가 이뤄지고 있고 이에 대응하기 위해 철도 안전시스템을 바탕으로 한 안전관리체계를 구축하였다. 한편 다양한 운영체계를 갖고 있는 철도시설 및 운영기관이 존재하는 국가 철도 안전관리체계의 안전규제를 체계화하기 위해서는 체계적인 요구사항의 분석에 따른 시스템 아키텍처의 설정이 요구되고 있다. 이러한 아키텍처의 설정은 현재에 대한 분석과 미래의 철도안전시스템의 특성을 구조화하여 향후 비전을 프레임워크로 표현함으로서 구현이 가능해진다. 본 논문에서는 현재의 안전관리체계의 도입 배경 및 도입 현황에 대해서 분석하고, 최근 기존의 안전관리체계와 더불어 최근에 안전분야에서 이슈가 되고 있는 기능안전 표준을 반영한 안전관리체계의 구축을 위해 안전관리체계에 대한 아키텍처를 구현하고자 하며 이때, 모델링을 바탕으로 한 접근을 제시한다.

• Aerospace Engineering and Technology
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• v.11 no.1
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• pp.178-184
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• 2012

In this study, implementation process of sensor-embedded main wing model for structural health monitoring is described. Fiber Bragg Grating (FBG) Sensor, Plumbum-Zirconate-Titanate (PZT) Sensor, and strain gauge are installed in the main wing of Jabiru UL airplane as a test-bed of Health and Usage Monitoring System (HUMS).

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.44 no.10
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• pp.862-870
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• 2016

AIS and V-PASS, which are used for safe navigation and automatic vessel arrival and departure, are mandatory standard equipment installed on all ships. If an aircraft is equipped with a ship identification system using AIS and V-PASS, and then ship identification information is received by a vessel such as a large fishery inspection boat or a patrol ship or a ground control system, we can quickly perform maritime surveillance and disaster response. This paper describes the development of a ship identification and display system using a ship identification device for aircraft. Flight test results and a future application plan are also included.