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자동차 생산설비의 LM가이드 Seal의 Overflow 방지를 위한 금형개발
서정철(Jeongchol Seo),이대섭(Daesuep Lee),오재춘(Jaechun Oh),박준현(Junhyen Park),서춘석(Chunseok Seo) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
In this paper, improved mold for protecting the overflow of side seal on LM guide was studied. Side seal is to seal with ball guide and to fix the other parts on assembling. But, overflow on side seal is big damage on LM guide. So, this paper is established the mold design protected overflow and the injected condition for each material such as NBR, FPM and Q according to filling ratio. And then, it is possible to improve the quality of side seal and develop the optimum mold.
김정우(Jeongwoo Kim),정치훈(Chihoon Jung),안동찬(Dongchan Ahn),이규준(Kyujoon Lee) 한국추진공학회 2017 한국추진공학회 학술대회논문집 Vol.2017 No.5
공기 흡입 엔진을 개발하기 위해서는 지상 시험을 통한 추력 측정이 반드시 필요한데, 공기 흡입 엔진은 추력 측정 장치에서 측정된 값 이외에도 엔진 흡입구로 들어오는 공기 유동에 의한 힘을 고려하여 총추력을 계산해야 한다. 또한 다분력 추력 측정 장치를 활용하여 요와 피치 방향의 측추력도 정확하게 측정하고 분석할 수 있어야 한다. 래버린스 씰 격리, 1축 총추력 계산, 다분력 추력 측정 장치 개발, 측추력 분석 등의 일련 과정을 통해 공기 흡입 엔진의 총추력을 정밀하게 추정하여 엔진 성능을 보다 정확하게 평가할 수 있게 하였다. It is definitely important to measure thrust during ground test when developing air-breathing engine, and in case of air-breathing engine, gross thrust should be calculated considering not only the measured thrust but also the force induced by the air flow of engine intake. Also, side thrust like yaw and pitch should be measured and analyzed using multi-component thrust measurement system. Engine performance was accurately evaluated by calculating the gross thrust of air breathing engine precisely which is analyzed from below serial procedure: labyrinth seal isolation, 1-axis gross thrust calculation, develop multi-component thrust measurement system, and side thrust analysis.
김정우(Jeongwoo Kim),정치훈(Chihoon Jung),안동찬(Dongchan Ahn),이규준(Kyujoon Lee) 한국추진공학회 2018 한국추진공학회지 Vol.22 No.3
It is definitely important to measure thrust during ground test when developing air-breathing engine, and in case of air-breathing engine, gross thrust should be calculated considering not only the measured thrust but also the force induced by the air flow of engine intake. Also, side thrust like yaw and pitch should be measured and analyzed using multi-component thrust measurement system. Engine performance was accurately evaluated by calculating the gross thrust of air breathing engine precisely which is analyzed from below serial procedure: labyrinth seal isolation, 1-axis gross thrust calculation, develop multi-component thrust measurement system, and side thrust analysis.