현가장치의 응력해석 및 피로내구성 시험에 관한 연구

백운경 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-

다물체 기계시스템의 동적응력 계산에 관한 연구

백운경 釜山工業大學校 産業科學技術硏究所 1994 産業科學技術硏究論文集 Vol.10 No.-

극한운전시 자동차의 동적안정성 해석을 위한 컴퓨터시뮬레이션

백운경 부경대학교 1997 釜慶大學校 論文集 Vol.2 No.2

상업계열 특성화고등학교 현황과 발전과제

백운경,이광호 한국상업교육학회 2008 상업교육연구 Vol.21 No.-

특성화고등학교에서는 학생들의 소질과 적성, 재능과 흥미에 부응하는 교육을 하고 있고, 성적위주ㆍ입시 위주로 획일화된 고등학교 교육에 대한 대안적인 학교유형으로 주목받고 있다. 또한, 소질과 적성이 유사한 학생들을 대상으로 특정 직업분야에 대한 교육을 전문적으로 실시함으로써 장차 그 분야의 우수한 인재를 양성할 수 있을 것으로 기대되 관련 산업의 발전에도 상당히 기여하고 있다. 특성화고등학교 제도가 시행된 지 10년이 지나고 있다. 상업계열 특성화고등학교 지정․운영을 살펴보면 2007년까지 다른 직업교육분야에 비해 20.2%에 불과하다. 이에 상업계열 특성화고등학교 최근 현황을 살펴보고 발전과제를 모색하고자 한다. 미래 정보산업에 필요한 상업계열 특성화고 등학교의 설립 확대가 필요하다. 또한 특성화고등학교에 대한 행ㆍ재정 지원이 필요하며 졸업생이 배출되고 있는 시점에서 상업계열 특성화고등학교의 종합적인 정책과 교육과정 평가가 이루어져야 할 것으로 생각된다. Specialized Commercial High School has been being attracted as the type of an alternative high school in that it focused on the education for students' character, aptitude, talent and interest, not on uniformed one like giving the first consideration SAT or study achievements in school. Moreover, SCHS(Specialized Commercial High School) has been contributing to the development of related industries by making it possible to do the professional job education for the competent similar students in talent and aptitude. It is why we expect to get the best brains through SCHS. It has been ten years since Specialized High School began. Despite the long period, SCHS's operation has been at most 20.2% until 2007, compared with other vocational education. Accordingly, this study will be directed to find out the recent conditions & development tasks of specialized commercial high school. I think we need not only the expansion of SCHS for the future high-tech industries , but also administrational and financial support for SCHS. Especially, we have to consider both SCHS's comprehensive policy and assessment of educational curriculum in the present state with graduates of SCHS.

차량 현가장치의 내구성 시험에 관한 연구

백운경 한국안전학회 1995 한국안전학회지 Vol.10 No.2

This paper shows the fatigue durability test method for vehicle suspension systems. Durability should be assured for the safe driving during vehicle life cycle. A computer simulation for the vehicle dynamics was used to obtain dynamic loads that were required for the fatigue durability test. Durability tests were done for an Important load-carrying component of the suspension system. Stress analyses using stresscoat and strain gages were also done for the component. This study demonstrated an effective method for the fatigue durability test.

지프차량의 전복성향 해석

백운경 한국산업안전학회 1999 한국안전학회지 Vol.14 No.4

Vehicle rollover is an important issue for the traffic safety. Rollover can occur from the driver's action, the vehicle characteristics, or the road condition. This study is about the rollover propensity analysis of a jeep vehicle using the steering and braking maneuver, which is the combined result by the driver and the vehicle. Simple equations of roll motion is used to analyze the roll motion and a special purpose vehicle dynamics program is used to simulate the rollover of the jeep vehicle. From the simulation, an incipient rollover motion of the vehicle was found. However, the more complete rollover propensity analysis would require further investigation using roll dynamic sensitivity study.

극한운전시 자동차의 동적안정성 해석을 위한 컴퓨터시뮬레이션

백운경 釜慶大學校 1997 釜慶大學校 論文集 Vol.2 No.2

Dynamic stability is an important factor in vehicle design. Especially, this is a very critical problem in limit driving condition for obstacle acoidance maneuver. Dynamic stability can be divided into directional and lateral stability. Losing di-rectional stability can yield spinout or plowiut and losing lateral stability can yield rollover. In this study, vehicle stability is investigated for a full vehivecle dyanamic model in linit driving. The model was analytivally validated using typical step steering and lane change simulation. Limit driving condition for the vehicle model was quoted from research results of references. It was demonstrated that instable vehicle motion was caused by not only road conditions byt also driving conditions. Also, the simulation showed that braking combined with steering caused very hazardous stiuation in crash avoidanve maneuver. Finally, phase plane plot approach was used to evaluate the dynamic instability.

SI엔진의 전자제어신호 처리에 관한 연구

이종숭,배종용,백운경 釜慶大學校 1999 釜慶大學校 論文集 Vol.4 No.1

In the spark ignitio engine, the number of the electronic control parts is increased so that the harmful exhaust gas can be reduced and the thermal efficiency of the engine can be enhanced. ECU can control the function of the engine better when the function signals of the engine are converted into the electrical signal under optimum condition. This study deals with the improvement of the signal measuring and processing for the electronic control in the SI engine. The measurement algorithm was developed within 1°accuracy of the crank angle, and as a result, the function of the engine can be more precisely controlled, such as the duration of the fuel injection and the timing of the spark ignition.

여자고등학교의 보건교육과목 설정에 관한 기초적 조사 연구

홍양자,백운경 韓國保健敎育學會 1992 보건교육건강증진학회지 Vol.9 No.1

The purpose of this thesis is to provide the framework of the health education curriculum on a school level which should be accomplishe in futrue and farthermore to establish the health education as a independent and regular course. The relation among the status in quo and the satisfaction degree of health education, the degree of the knowledge about health, the degree of the understanding of the health education and the degree of requirement for the health education curriculum has been analyzed in this paper. The research has been carried out through the questionnaire forms distributed to the girl students and the instructors at a few general senior high school and vocational senior high schools in Seoul, and the consequences are as follows: 1. As to the degree of understanding of the health education, it has been indicated that the health education should be performed on or two hours a week from the elementary school for all the boy and girl students by the experts trained in the departments concerned with health. 2. Concerning the degree of requirement for health education curriculum, the high school girl students have shown the need for first aid, sex education, environmental health, drinking, smoking, drug abuse, maternal and child health, industrial health, safety health, mental health, growth & development, epidemiology, the old health in the order named. On the other hand, the instructors have shown the need for drinking, smoking, drug abuse, sex education, maternal and child health, public health and industrial health also in the order named, The items having low degree of requirement are biostatistics, community health and health administration in case of the girl students and biostatistics, health administration and health economics in case of the instructios. 3. The status in quo and the satisfaction degree of the health education has proved higher in senior high school curriculums than in junior high school curriculums, and the most instructive course about health has turned out to be gymnastics in junior high school and the training course in senior high school respectively. 4. As to the degree of understanding of the health education in case of the girl students, the significance has been found between the health condition and the time for performing the health education, the monthly income and the objects for the health education, and the school records and the school hours per week. The significance has been shown only in regard to the school records in case of the degree of requirement for the health education curriculum. 5. The degree of requirement for the health educaton in case of the instructors has shown the significance between the teaching career and the need for the health educaton. In addition, the degree of requirement for the health education curriculum has indicated significance with regard to sex and age. 6. The degree of the understanding of the health education according to the satisfaction degree has shown the significance only with regard to the relation between health and the training course in high schools. It has proved that there is no significance in case of the degree of requirement for the health education curriculum. 7. The degree of the understanding of the health education according to the degree of knowledge about health and the degree of requirement for the health education curriculum have been all turned out to be statistically significant. 8. Among the factors which have an influence on the degree of the understanding of the health education, the recognition of the relation between the health course and the training course has significantly influenced the selection of the health education instructors. In addition, the understanding of the need for health education has significantly influenced the objects for the instructors and the school hours, and the understanding of the need for establishing the health education curse has significantly influenced the time for performing the health education.

MR댐퍼를 장착한 SUV의 조향 성능평가

백운경(Woonkyung Baek),강태호(Taeho Kang),이종석(Jongseok Lee) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_2

This study is about steering characteristics simulation of a SUV(sports utility vehicle) with semiactive suspension systems utilizing MR(magneto-rheological) dampers. ADAMS/Car program was used to simulate the basic steering characteristics, using 63 d.o.f. vehicle model. Sky-Hook and ground hook control algorithms were used as a suspension system controller. The steering characteristics simulation results of the semi-active & passive suspension system was compared.