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임재환(Jaehwan Lim),전영돈(Youngdon Jeon),김성섭(Sungsup Kim) 한국자동차공학회 2014 한국자동차공학회 학술대회 및 전시회 Vol.2014 No.11
2개의 바퀴를 갖는 축이 존재하는 삼륜형 이륜자동차는 주로 기존의 이륜자동차의 후축을 개조하여 생계형으로 주로 제작한 형태로 운행되고 있다. 구조 특성 상 4개의 바퀴를 갖는 자동차에 비하여 롤전복 등에 대한 주행안정성이 취약하나, 개조 업체 대부분이 영세한 제작소 수준으로 제작하는 과정에서 기술적인 안전을 고려하는 것이 현실적으로 어려운 실정이다. 이 연구에서는 삼륜형 이륜자동차의 구조 및 주행특성을 분석하고, 무게중심에 기반한 삼륜형 이륜자동차의 주행안전성을 예측하였으며, 시험용 삼륜형 이륜자동차를 제작하여 무게중심 측정을 통한 주행안정성 추정 및 실차시험을 통한 검증을 수행하였다.
박강(Kang Park),심철동(Cheol Dong Shim),김의환(Euihwan Kim),김성섭(Sungsup Kim),김태완(Taewhan Kim) (사)한국CDE학회 2010 한국CDE학회 논문집 Vol.15 No.5
The purpose of this study is to develop three Judo-doll systems for enhancement of Judo’s performance. Traditional Judo training requires a human training partner. Unfortunately it is not always easy to find one. Multifunctional Judo-doll training system has therefore been developed, and is described here. The system consists of a dummy, a power generating mechanism, and kinematic links. The power-generating mechanism generates forces similar to those of a human, by adjusting deadweights and controlling powderbrake"s forces. The powderbrake force is controlled by the microprocessor according to the exercise scenario. The kinetic links, which mimic a human training partner’s motions, has been developed based on a Vicon<SUP>TM</SUP> system’s analysis of the movement of human training partners. This mechanism whose name is “L link-wire” consists of L type links, wire, roller, and dead weight. This mechanism generates the force that leads the link to the neutral position regardless the link is pushed or pulled. The lifting mechanism that lifts the doll when the one-armed shoulder throw skill is applied is also developed. A 32-bit microprocessor controls the whole system; it reads the loadcell data, controls the electromagnetic force, and communicates with a PC via Bluetooth. The training history, including loadcell data, date, and training time, is stored in the PC for analysis. This training system can be used to enhance the Judo performance of any self training player.
박강(Kang Park),심철동(Cheol Dong Shim),김의환(Euihwan Kim),김성섭(Sungsup Kim),김태완(Taehwan Kim) (사)한국CDE학회 2010 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2010 No.1
Traditional Judo training requires a human training partner. Unfortunately it is not always easy to find one. Multifunctional Judo-doll training system has therefore been developed, and is described here. The system consists of a dummy, a power generating mechanism, and kinematic links. The power-generating mechanism generates forces similar to those of a human, by adjusting deadweights and controlling powderbrake"s forces. The powderbrake force is controlled by the microprocessor according to the exercise scenario. The kinetic links, which mimic a human training partner’s motions, has been developed based on a ViconTM system’s analysis of the movement of human training partners. This mechanism whose name is "L link-wire" consists of L type links, wire, roller, and dead weight. This mechanism generates the force that leads the link to the neutral position regardless the link is pushed or pulled. The lifting mechanism that lifts the doll when the one-armed shoulder throw skill is applied is also developed. A 32-bit microprocessor controls the whole system; it reads the loadcell data, controls the electromagnetic force, and communicates with a PC via Bluetooth. The training history, including loadcell data, date, and training time, is stored in the PC for analysis. This training system can be used to enhance the Judo performance of any self training player.