• Journal of Advanced Marine Engineering and Technology
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• 제27권1호
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• pp.91-99
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• 2003

This paper describes the development of a pc-based machinery space simulator for training and research, relevant to STCW-95. The detailed mathematical modelling process for the actual machinery is discussed and a method to perform effective education and training for the simulator is suggested. The method includes scenario, procedure, exercise and evaluation. The procedure guides the trainee through a sequence of steps designed to meet a specific goal, showing the trainee what must be done and explaining why The exercise enhances understanding for efficient engine management and enable user to perform research for the machinery. The evaluation shows exercise results and feeds back to instructor how to guide the under-performed trainee.

• 대한조선학회논문집
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• 제55권4호
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• pp.361-369
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• 2018

The ship surveyor makes a scheme of reasonable ship operation by examining whether the ship has been properly constructed in accordance with the rule of classification societies and international conventions or whether the facilities of the ship in operation meet the standard stipulated by law. Even though the ship surveyors of classification society generally consist of people who have the skill of design or operation of a ship, it takes a long time to train a surveyor to the maturity level. This paper describes the development of survey simulator based on virtual ship environment that enables the surveyor minimize trial and errors to survey the ships. By using VR(Virtual Reality) based survey simulator, surveyors possibly achieve improvement of competence in survey quality by means of safe and immersive training environment. In order to improve the usability and utility of the VR simulator, the ship 3D model has been generated using 3D CAD model for design and production in shipyard. Through this, we suggested the possibility of consistent use of 3D model as the digital twin of a ship.

• 한국항행학회논문지
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• 제27권3호
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• pp.293-299
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• 2023

UPRT(Upset Prevention And Recovery Training)은 2001년과 2011년 사이에 상업항공에서 발생한 항공기 사고 중 주요 원인이 LOC-I(비행 중 조종능력상실; Loss Of Control In flight)으로 분석된 이후 3년의 시간에 걸쳐 개발된 사고 예방 훈련 프로그램이다. 2014년 ICAO는 Doc.10011(Manual On Aeroplane Upset Prevention And Recovery Training)을 통해 고정익항공기에 대한 UPRT를 제시하였고 2019년 3월부터 체약국에 의무시행을 권고하였다. 해군 P-3C는 해상초계와 대잠전이 주요 임무이기 때문에 저고도(70~600 m)에서 비행하는 시간이 많고 P-3C 대다수의 조종사들이 비행착각을 경험한바 비정상 자세 예방 및 회복훈련은 해군 P-3C 조종사에게는 반드시 필요한 훈련이다. 이를 위해 본 연구에서는 해군이 보유하고 있는 P-3C 시뮬레이터를 이용하여 제한적인 상태에서의 비정상 자세 예방 및 회복훈련 방안을 제시하고자 한다.

• 전기학회논문지
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• 제59권3호
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• pp.492-498
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• 2010

Since it is almost impossible to train the dispatchers with real power system, the dispatcher training simulator(DTS) is used for the training. Among various components of the DTS, the power system model(PSM) emulates the dynamic behavior of the power system to calculate the frequency and voltage. The frequency is calculated from various parameters such as mechanical power of power plants, load, inertia, and the damping of the power system. In the PSM, the power plants are modeled as differential equations, so the mechanical power of the power plants are calculated by the numerical methods. Conventionally, the fixed step-size algorithm has been used in the PSM, however it has some drawbacks. This paper develops the prototype PSM using the Matlab, and analyzes the problems of the fixed step-size algorithm by comparing the results with those of PSCAD simulation. In order to overcome the limitations, this paper proposes a modified frequency calculation method using the adaptive step-size algorithm. From the simulation using the proposed method, it is verified that the accuracy of frequency calculation increases substantially while the simulation time is not greatly increased.

• 한국전자통신학회논문지
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• 제15권3호
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• pp.533-542
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• 2020

본 연구에서는 기동 순찰대 오토바이 가상훈련 시스템 구현의 개발 기술을 바탕으로 PC를 기반으로 한 모터사이클 시뮬레이터를 개발하였다. 모터사이클 시뮬레이터를 현실감 있게 직접 운전하고 있다는 느낌을 받도록 하기 위해서는 운전자와 시뮬레이터 사이에서 상호 신뢰성 있는 신호의 전달 및 조작 느낌이 중요하다. 이를 위해서 실차와 동일한 조작 느낌을 생성하기 위하여 실차의 각 서브시스템이 모터사이클 시뮬레이터에 그대로 적용될 수 있는 방법에 대한 연구를 수행하여 시스템을 구축하였으며, 이러한 결과를 바탕으로 운전자에게 현실감 있는 조작 느낌을 제공할 수 있는 피드백 큐 생성 방법을 개발하였다. 차량 동역학은 차량 시뮬레이터에 탑승한 운전자가 운전 중 조작하는 조향 휠, 가감속 페달 등으로부터 입력을 받아 실시간으로 차량의 운동을 예측하고, 그 결과를 시각, 음향 시스템에 전달하여 필요한 시각 및 운동 큐를 생성케 하는 시뮬레이터의 중심요소이다. 시뮬레이션 동역학 주요 요구내용에 대해 정리하고자 한다.

• 대한통합의학회지
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• 제5권4호
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• pp.77-81
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• 2017

Purpose : This study examined the effects of driving rehabilitation functional training on visual perception ability and driving reaction velocity. Those subjects were put under MVPT-3 test to see their visual perceptual functions before and after the 4weeks' driving rehabilitation function training and then put to TMT A-type test to see their driving reaction velocity performance. The followings are the results of this study. Methods : Using a driving simulator, driving rehabilitation functional training was performed targeting men and women aged in 20s 20 minutes per time, two times per week, for a month. Results : As for the change in visual perception, the Raw Score of MVPT-3 very significantly increased (p<.01), and the Standard Score also very significantly increased (p<.01). As for the change in reaction velocity, TMT A-type very significantly decreased (p<.01), and TMT B-type also very significantly decreased (p<.01). Conclusion : It could be found that driving rehabilitation functional training should be effective for both visual perception and reaction velocity. Consequently, the driving rehabilitation function training can be applied to clinics as training method for functional recovery and improvement of visual perceptual functions and driving reaction velocity performance ability of the patients. Thus, various functional programs should be studied in the future.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2013년도 춘계학술대회 논문집
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• pp.1399-1400
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• 2013

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2002년도 춘계학술대회논문집
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• pp.15-20
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• 2002

Most of marine casualties are caused by not only wrong operation of equipments but also lack of knowledge about navigational equipments or systems. But we can say these casualties result from lack of ship handling skill or lack of situational awareness. This study aims to investigate the recent status of SHS and suggest several recommendations such as teaching skills, evaluation skill, etc. to make more efficient crew training with SHS (ship handling simulator).

• 한국시뮬레이션학회논문지
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• 제10권4호
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• pp.31-40
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• 2001

The flight simulator should be made like a actual flight. For the scene of sight, instrument should show the condition of flight and the pilot should catch the altitude, speed, pose and rate of lift of the airplane. This paper describes visual training program of driving airplane in practice. It is for beginners using joystick in PC, implements airplane physical equations. Flight simulator in it implements airplane panel parts in order to make simple modeling, And it uses rendering technology to implement vision parts of panel. It uses double buffering In make it faster and more efficient..

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 추계학술대회 초록집
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• pp.75.1-75.1
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• 2010

This research presents a fuel cell simulator for control logic verification and operator training. Nowadays, power industries are focusing on clean energy as a response to new policy. The fuel cell can be the solution for clean energy, but operating technology is not well developed compared to other conventional power plans because of its short history. Therefore we need a simulator to verify the new control strategy and train operators, because the price of a real fuel cell system is too high and mechanically weak to be used for these kind of purposes. To develop the simulator, a 300 KW MCFC(Molten Carbonate Fuel Cell) system was modeled with stack, BOPs(pre-reformer, steam generator, etc) and mechanical components(valves, pipes, pumps, blowers, etc). The process model was integrated to emulated control system and HMI(Human Machine Interface). A static load and open loop tests were conducted for verifying the accuracy of the process model, since it is the most important part in the simulation. After verifying the process model, an automatic load change and start-up tests were conducted to verify the performance of a new control strategy(logic and functional loops).