• 공학교육연구
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• 제11권3호
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• pp.33-43
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• 2008

본 논문에서는 우리나라 메카트로닉스 공학교육을 4년제 대학을 중심으로 분석하였고 그 개선 방향에 관하여 논하였다. 메카트로닉스 공학의 정의어와 발전의 과정, 미국과 유럽대학의 메카트로닉스 공학교육과정에 관하여 분석하였다. 우리나라 대학의 메카트로닉스 공학교육과 외국의 메카트로닉스 공학교육을 분석한 결과 우리나라에서는 공장이나 기계의 자동화가 강조되어 있는 반면 구미에서는 자동제어분야의 교육이 강조되고 있음이 밝혀졌다. 국가 기술자격검정의 내용을 분석하였으며 공업계 고등학교와 대학교육간의 연계교육을 논하였다.

• Educational Technology International
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• 제14권2호
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• pp.215-228
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• 2013

In engineering education practical experiments is very important for each student, but due to the limitation of time and available resources such as laboratory equipment, space and instructors enough hands-on real experiments could not be provided to all students enrolled in the program throughout the academic year. In this sense web-based remote experiments through internet become a solution for engineering education and an emerging new paradigm for students and teachers. This paper presents the development of the web-based remote vibration experiment system for mechatronics education. Students can access this experimental equipment through an internet and conduct vibration experiment remotely without any restriction on time and place. IP address for data communication and web-service are assigned in local computer and then students receive experimental results and the captured pictures using network. The developed system provides real-time feedback of the tested results. Ubiquitous access to the system gained popularity from students.

• 한국생산제조학회지
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• 제23권2호
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• pp.186-193
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• 2014

This paper presents characteristic analysis of underwater bearing for canned type electric water pump. Characteristic analysis of underwater bearing was performed using self-developed performance tester, which capable of torque change, noise change, motor speed change and abrasion loss test with respect to temperature change of underwater bearing. The performance tester can be monitored in real time by designing the control unit using the Labview program. The performance experiment was performed through comparison of the silicon carbide (SIC) and the carbon bearing. From the experiment results, performance of SIC bearing was better than carbon bearing at the abrasion and temperature experiment.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 B
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• pp.653-654
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• 2006

This paper proposes a new linear magnetic damper for absorbing shock from a crash accident involving high speed vehicles. The magnetic damper is composed of a conductive plate, a yoke and permanent magnets which are constructed to a Halbach array to improve the damping force. In order to calculate the damping force, finite element analysis(FEA) using J-Mag, a commercial FEA tool, is performed and the results are validated by the experiment. Also, the design optimization of the plate generating the eddy current causing the damping force performed to obtain the most efficient damping force. Finally, the specifications and the performance of the proposed magnetic damper are represented.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2007년도 하계종합학술대회 논문집
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• pp.311-312
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• 2007

This dissertation proposes a global search and a local search method to track the object in real-time. The global search recognizes a target object among the candidate objects through the entire image search, and the local search recognizes and track only the target object through the block search. This dissertation uses the object color and feature information to achieve fast object recognition. Finally we conducted an experiment for the object tracking system based on a pan/tilt structure.

• 한국가시화정보학회지
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• 제17권1호
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• pp.53-59
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• 2019

Particle image velocimetry is performed in order to analyze flowfield induced by a dielectric barrier discharge plasma actuator. The velocity vector fields are obtained for the two different input voltage conditions; the voltage 3 and 5 kV at the frequency 10 kHz. The obtained flowfields show that the air is accelerated and its speed increase almost linearly over the covered electrode. The amount of momentum induced by the DBD plasma actuator is estimated from the obtained velocity fields, and the estimated values reasonably agree with the previous experiment.

• 항공우주시스템공학회지
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• 제13권1호
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• pp.29-37
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• 2019

본 논문에서는 높은 풍량을 갖는 임펠러 형상 최적 설계를 위하여, 블레이드 형상이 임펠러의 성능에 미치는 영향을 파악하였다. 먼저 임펠러 성능에 큰 영향을 미칠 것이라 판단되는 블레이드 개수, 각도, 길이를 설계변수로 선정하고, 실험계획법에 의거하여 정한 설계 수준에 따라 각기 다른 27가지 임펠러 형상을 설계하였다. 그리고 블레이드 형상 변화에 따른 임펠러 성능변화를 예측하기 위해 ANSYS CFX로 유동해석을 진행하였다. CFD 결과, 블레이드 개수 50개, 각도 $6^{\circ}$, 길이 5 mm 조합의 임펠러 형상에서 가장 높은 풍량이 발생되었다. 마지막으로 해석 결과를 바탕으로 3D프린터를 이용하여 기존 임펠러 형상과 시험군 임펠러 형상을 제작하였고, 블로워의 토출구에서의 유량을 측정하여 CFD 결과와 비교하는 검증 실험을 진행하였다.

• Design & Manufacturing
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• 제9권1호
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• pp.9-13
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• 2015

The HEV/EV Traction Motor Core manufacturing technology is a core component of Traction Motor Core is a key technology for the manufacture of eco-friendly automotive industry is essential for the competitiveness of the country must obtain the technology. This study was performed to develop a Rotor Core of the HEV/EV Traction Motor using the first time in Korea multi-gate BMC injection molding technique. Executed by the experiment of this study are as follows. Study 1: Developed a multi-gate BMC injection mold for the magnet fixed to the Rotor Core. Study 2: Developed a production implementation and manufacturing technology of the Rotor Core. In this study, the develop products and manufacturing technologies implemented by the BMC injection mold development for Magnet fixed to the Rotor Core and the results are discussed.

• 한국기계가공학회지
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• 제15권5호
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• pp.100-108
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• 2016

In various industries, many researches studies have been done in using nano thin film fabrication technology. In the field of printed electronics, various electronic devices can be fabricated using a direct printing process of on multiple functional materials. It has the advantages of low prices, environment-friendly environmentally friendly, flexibleility, large scale, mass production produced, simple process and so on. In this study, a viable thin film fabrication technology has beenwas introduced using the surface acoustic wave mechanism for thin film deposition. Fabrication of thin films using organic, inorganic and composite of organic/inorganic materials have been were analyzed through the experimental research. In this experiment, organic material MEH:PPV, inorganic material ZnO and composite material MEH:PPV/ZnO have been depo sited as thin films.

• 한국군사과학기술학회지
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• 제23권1호
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• pp.37-42
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• 2020

This study is for a bulletproof experiment through speed acceleration of steel ball(2.385 mm) at the laboratory level. The secondary propulsion method is used for speed acceleration, which uses a sabot assembly consisting of a sabot body, a plunger, water, and a sabot cap. At the core of the secondary drive, it is important that the energy in the water of the private particle is transferred well to the steel ball. The experiment was conducted by selecting a plunger that pushes water and water charged with variables. judging that the longer the contact time, the greater the energy transferred to the steel ball. As a result of experiments with each variable, the amount of water does not affect the speed acceleration efficiency of the steel ball and, when the length of the plunger is increased by 200 %, the speed of the steel ball can be accelerated up to 130 m/s.