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자동차용 교류발전기 고정자 및 회전자의 재제조 공정 개선
송현석(Hyunseok Song),정도현(Dohyun Jung),성창현(Changhyun Sung),손민호(Minho Shon),김은규(Eunkyu Kim) 한국생산제조학회 2017 한국생산제조학회지 Vol.26 No.5
The automobile remanufacturing industry has started from the maintenance industry. And now it accounts for 80% of the domestic remanufacturing industry. Domestic consumers still tend to prefer new products than remanufactured products. Therefore, the market for remanufactured products is small compared to that for new products. Additionally, the technological capabilities of remanufacturing manufacturers and process technologies should be applicable in unfavorable manufacturing environments. This study focused on improving the remanufacturing process of the alternator stator and rotor by adding process and severity rating. Throughout the study, it was assumed that it is possible to improve the performance and vibration resistance of the remanufactured products.
상온 분사 공정을 이용하여 제조한 고에너지 밀도 세라믹 유전체 커패시터
송현석 ( Hyunseok Song ),이건 ( Geon Lee ),예지원 ( Jiwon Ye ),정지윤 ( Ji Yun Jung ),정대용 ( Dae-yong Jeong ),류정호 ( Jungho Ryu ) 한국전기전자재료학회 2024 전기전자재료학회논문지 Vol.37 No.2
Dielectric ceramic capacitors present high output power density due to the fast energy charge and discharge nature of dielectric polarization. By forming dense ceramic films with nano-grains through the Aerosol Deposition (AD) process, dielectric ceramic capacitors can have high dielectric breakdown strength, high energy storage density, and leading to high power density. Dielectric capacitors fabricated by AD process are expected to meet the increasing demand in applications that require not only high energy density but also high power output in a short time. This article reviews the recent progress on the dielectric ceramic capacitors with improved energy storage properties through AD process, including energy storage capacitors based on both leadbased and lead-free dielectric ceramics.
시트 터치 팝업 스위치의 정전용량 센서 감도 분석 연구
송현석(Hyunseok Song),김범순(Beomsun Kim),양태형(Taehyoung Yang),이승규(Seungkyu Lee) 한국자동차공학회 2020 한국자동차공학회 학술대회 및 전시회 Vol.2020 No.11
As the customer requirements for convenience in the vehicle increase today, the number of parts for passenger convenience and comfort functions is also increasing in the seats in the vehicle. To operate these seat function components, the seat switch consists of a variety of knobs and buttons. However, the seat switch is located on the side of the seat, so it is not easy for passengers to locate the knob and buttons due to a small space, and due to confusion about the function, it is also ranked at the top of the complaint in the JDP research. Therefore, to improve seat switch cognition, a constant capacity sensor in the switch is applied to measure the signal changes caused by contact with the switch knob of the passenger, and a system is constructed to determine whether or not to contact the passenger. The reliability of the system is ensured through comparative evaluation of actual conditions of use, such as foreign substance evaluation.
자동차용 프로펠러 샤프트의 내구 성능 평가 및 개선 설계
송현석(Hyunseok Song),정도현(Dohyun Jung),서영교(Youngkyo Seo),정원선(Wonsun Jung),이범연(Byumyun Lee),강문모(Munmo Kang) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
In this paper, the analysis model to estimate the durability of a propeller shaft of an automotive was created using the finite element analysis method. The analysis model is composed of a shaft, rubber coupling yoke and rubber coupling. The dynamic stress variation generated at the rubber coupling yoke was measured. Sensitivities of design variables of the rubber coupling, which is used to connect the shaft to the driving axle, were analyzed by using the design of experiment. Based on the sensitivity analysis results, design modification to the shape of the rubber coupling was carried out, and the results were discussed.