http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오부진(Boo Jin Oh),류봉조(Bong Jo Ryu),임경빈(Kyung Bin Lim),김효준(Hyo Jun Kim) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
The papers deals with the dynamic stability of a broke shoe under pulsating frictional forces. A lining part of brake systems is assumed as a distributed spring, and the supported elements of a shoe is assumed as translational springs for a constant distributed frictional force and pulsating frictional force. Govering equations are derived by the extended Hamilton's principle, and numerical results are calculated by finite element method. The critical distributed frictional force and instability regions were investigated for the change of distributed spring constants. translational spring constants.
경중량 수직형 충격 시험 장비의 선형 동역학 모델 수립을 통한 충격 시험 설계 기법에 관한 연구
김준혁,오부진,임담혁,Kim, Junhyeok,Oh, Boo-Jin,Im, Damhyeok 한국군사과학기술학회 2021 한국군사과학기술학회지 Vol.24 No.1
Naval surface ships and submarines could be exposed to non-contact underwater explosion(UNDEX) environment. Equipment installed on the ships and submarines could be damaged by shock load generated by UNDEX environment. Therefore, shock survivability of equipment generally evaluated by shock tests. Ground based shock test machine such as Light weight shock test machine(LVSM) is developed to simulate shock load caused by UNDEX environment. In this study, linear dynamic model of LVSM is proposed and evaluated to improve shock test design procedure. Parameters of the model are decided by optimizing time domain response compared to zero payload experiment. Proposed model is verified by comparing simulation results and test results of maximum payload experiment. Finally, shock test design using the model is described for various test equipment weight.
부모-자녀모래놀이치료가 모-자의 애착안정성과 의사소통에 미치는 효과
오애니아(Aenia Oh),유승은(Seung Eun You),박부진(Boo Jin Park) 한국아동학회 2013 아동학회지 Vol.34 No.6
This study aimed to look into the effect of sandplay therapy with parent-children on mother-child`s attachment security and communication. This study first conducted a scale of attachment security targeting child and mother who is bringing children in the age of 5 to 6 years in two kindergartens located in Seodaemun-gu, Seoul, and composed experimental group and control group of four couples respectively by selecting randomly from eight mother-child couples that received low grades. Sandplay therapy with parent-children was conducted for 12weeks on a weekly basis for 50minutes each. To study the attachment security, we used the Klabsbrun-Bowlby(1976)` Separation Anxiety Test and Mother`s attachment scale. In this study, it is Seperated in based on Lee Na Gueng(2001) by functional communication and dysfuctional communication in order to measure changes in communication for situation that may occur during Sand play theraphy and record of observation about changes in each session. Data logging makes watching videos that recorded parent-children sand play therapy every situations. When observes the functional communication or dysfunctional communication between mother and the child, checking the corresponding to each entries, the frequency is recorded and qualitatively analyzed by each sessions. To study mother and child have been enhanced stability of the attachment and the relationship had improved results. Also, in each session the observation of increased functional communication, and dysfunctional communication results appear to reduce in parent-children sand play therapy. As a result, a couple sand play therapy has positive impact to improved the relationship between the mother and the child.
류봉조(Bong-Jo Ryu),이강수(Kang-Soo Lee),신광복(Kwang-Bok Shin),오부진(Boo-Jin Oh),양승민(Seung-Min Yang),송용선(Young-Sun Song) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.10
This paper deals with the safety investigation of Kumga bridge cables, stainless steel pipe and HDPE(High Density Poly-Ethylene) pipe due to a vehicle fire. Kumga bridge under construction is a cable-stayed bridge located at Chungju city. Heat source of a fire in the analysis is assumed to be a large bus. Through the transient analysis, the temperature and fluid distribution for cables, stainless steel pipes and HDPE pipes of the bridge are demonstrated. Commercial software SolidWorks and COSMOSFloWorks were used for three dimensional modeling of the bridge, thermal analysis and fluid analysis, respectively. The purpose of the study is to investigate the safety of cables and pipes of a Kumga bridge due to a fire through heat transfer analyses and fluid ones.
김해란(Hae-Lan Kim),이영신(Young-Shin Lee),이은엽(Eun-Yup Lee),이규섭(Gyu-Seop Lee),오부진(Boo-Jin Oh) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
MR(Magneto-rheological) fluid is smart material that can be changed viscosity by controlling the magnetic field. MR damper with MR fluid can control damping force. It can be used extensively many engineering structures for reducing the effect of dynamic external disturbances. There are three kinds of MR dampers, such as valve mode, direct-shear mode and squeeze mode. In this study, design process of direct-shear mode MR damper with the MR fluid gap was developed. The parameters that used in the direct-shear mode MR damper Informed from the experiment of valve mode MR damper of Lord company. Magnetic analysis with finite element method was performed to find the optimal annular gap.