http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전형호,탁태오 한국철도학회 2002 한국철도학회논문집 Vol.5 No.1
In this study, an analytical method for ride sensitivity analysis of a train with non-linear suspension elements are proposed. Non-linear characteristics of springs and dampers for primary and secondary suspensions of a train are parameterized using polynomial interpolation. Vertical dynamic model of a three-body train running on straight rail with the predetermined roughness expressed in terms of spectral density function is set up and its equations of motion for ride analysis are derived. Using the direct differentiation method, sensitivity equations of the vertical dynamic model with respect to design parameters associated with non-linearity of suspensions are obtained. Based on the sensitivity analysis, improvement of ride is achieved by varying appropriate suspension parameters.
ADAMS/Insight를 이용한 1톤 상용트럭의 동역학 해석 및 최적화
전형호,탁태오 강원대학교 산업기술연구소 2003 産業技術硏究 Vol.23 No.A
Stochastic simulation technique has advantages over deterministic simulation in various engineering analysis, since stochastic simulation can take into consideration of scattering of various design variables. which is inherent characteristics of physical world. In this work. Monte-Carlo simulation mothod in ADAMS/Insight for steady-state cornering and J-turn behavior of a truck with design variables like hard points and busing stiffnesses hare performed to achieve better dynamic performance. The main purpose is to improve understeer gradient at steady-state cornering and minimize peak lateral acceleration and peak yaw rate at J-turn Through correlation analysis. design variables that have high impacts on the cornering behavior were selected. and significant performance improvement has been achieved bj- appropriately changing the high impact design variables.
Reliability-based Design Optimization of Automotive Suspension Systems
전형호,권상진,탁대오 한국자동차공학회 2007 International journal of automotive technology Vol.8 No.6
Design variables for suspension systems cannot always be realized in the actual suspension systems due to tolerances in manufacturing and assembly processes. In order to deal with these tolerances, design variables associated with kinematic configuration and compliance characteristics of suspensions are treated as random variables. The reliability of a design target with respect to a design variable is defined as the probability that the design target is in the acceptable design range for all possible values of the design variable. To compute reliability, the limit state, which is the boundary between the acceptable and unacceptable design, is expressed mathematically by a limit state function with value greater than 0 for acceptable design, and less than 0 for unacceptable design. Through reliability analysis, the acceptable range of design variables that satisfy a reliability target is specified. Furthermore, through sensitivity analysis, a general procedure for optimization of the design target with respect to the design variables has been established.
서예의 특성을 적용한 가구디자인 개발 연구 - 벽 선반 디자인을 중심으로 -
전형호(Hyungho Jeon) 한국가구학회 2024 한국가구학회지 Vol.35 No.1
Lines have been utilized in various forms and meanings in the field of art for a long time. The aesthetic value and flexibility of lines inspire a wide range of artistic activities, from traditional arts to modern architecture and furniture design. Particularly, Korean calligraphy showcases beautiful characters and artistic expressions through lines, boasting cultural significance. However, currently, calligraphy lacks diversity in the realm of modern design compared to other traditional arts. Therefore, this study aims to reevaluate the value and potential of Korean calligraphy and propose directions for its utilization in the design field. By integrating the beauty and cultural value of traditional Korean calligraphy into modern furniture design for practical use, we seek to preserve the beauty of tradition and reinterpret it through the language of modern design. Through this process, we aim to explore creative design directions that are suitable for contemporary society while preserving cultural heritage. We aspire to serve as a bridge between the past and present by providing users with new visual experiences and connecting past and present.
전형호(H.H.Chun),탁태오(T.O.Tak) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_2
A computer program for design and analysis of vehicle suspension systems based on kinematic design sensitivity is devcloped. Suspension systems are modeled using composite joints to reduce the number of the constraint cquations. By directly differentiating the equations with respect to generalized coordinates and design variables, sensitivity equations are obtained. Symbolic computation technique is adopted to compute derivatives with respect to design variables. This program is to be run on Windows95 and used GUI(Graphic user Interface)for easy optimal design using sensitivity analysis.<br/>
Monte-Carlo 시뮬레이션을 이용한 확률적 차량동역학 해석
전형호(Hyungho Chun),탁태오(Taeoh Tak) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Monte-Carlo simulation technique has advantages over deterministic simulation in various engineering analysis, since Monte-Carlo simulation can take into consideration of scattering of various design variables, which is inherent characteristics of physical world. In this work, Monte-Carlo simulations for steady-state cornering and J-turn behavior of a truck with design variables like hard points and busing stiffnesses have performed to achieve better dynamic performance. The main purpose is to improve understeer gradient at steady-state cornering and minimize peak lateral acceleration and peak yaw rate at J-turn. through correlation analysis, design variables that have high impacts on the cornering behavior were selected, and significant performance improvement has been achieved by appropriately changing the high impact design variables
전형호(Hyung-Ho Chun),탁태오(Tae-Oh Tak) 한국철도학회 2002 철도저널 Vol.5 No.1
In this study, an analytical method for ride sensitivity analysis of a train with non-linear suspension elements are proposed. Non-linear characteristics of springs and dampers for primary and secondary suspensions of a train are parameterized using polynomial interpolation. Vertical dynamic model of a three-body train running on straight rail with the predetermined roughness expressed in terms of spectral density function is set up and its equations of motion for ride analysis are derived. Using the direct differentiation method, sensitivity equations of the vertical dynamic model with respect to design parameters associated with non-linearity of suspensions are obtained. Based on the sensitivity analysis, improvement of ride is achieved by varying appropriate suspension parameters.