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professors emeritus
Soowon Chae
Name
Soowon Chae | Professor
Tel
+82-2-3290-3367
Fax
+82-2-3290-4979
E-mail
swchae@korea.ac.kr
address
805, School of Mechanical Engineering, Korea University, Anamdong, 5-Ga, Sungbuk-Gu, Seoul, Korea, 136-713
Education
Feb. 1977 B.S of Mechanical Engineering, Seoul National University, Seoul, Korea.
Feb. 1979 M.S of Mechanical Engineering, KAIST, Seoul, Korea.
Feb. 1988 Ph.D of Mechanical Engineering, Massachusetts Institute of Technology, U.S.A.
Lab.
Computer Aided Engineering (CAE) Lab.
Crashworthiness analysis of automotive structure(Development of optimization techniques of restraint system)
Thus far, belt routing is usually known as comfort level estimation. However, belt routing assessment is also an important factor in safety belt design considering that serious injuries happen in the abdominal region result from the infiltration of the belt into the neck or chest. In this study, crash simulation considering belt routing with advanced safety system such as load limiter and pretensioner is performed and confirms its effectiveness. Digital human model which is more biofidelic than dummy model is also applied to perform more accurate simulation. Finally, optimized safety belt system is designed to reduce injuries.
Development of FE-based human-product simulation technology
Recently, it is considered to important design parameter that satisfaction of ergonomic aspects as well as functional aspects in product development process. Depending on trend, we develop product design technology using simulation with FE human model. For example, we apply FE human-chair simulation results to design process to detect the most comfortable chair design. In this process, we consider some important parameters to evaluate more comfortable position for example, human lumbar angle, disc pressure, pressure distribution of chair etc.
Development of digital human model based on FEM
Increasing interest in the health of the human body, products which are considered the interaction with human body are being developed and researched. The research on the interaction between the human body and products is carried out qualitatively and quantitatively. The qualitative analysis includes the emotional evaluation throughout survey. Therefore it is too difficult to evaluate the qualitative factors as the comfort objectively. In quantitative analysis, it is possible to objectify the biomechanical factor however there is a limit to measure the factor as inner stress and strain at the inner structure of human body by in-vivo experiment because of the complex structure of the human body consisting of musculoskeletal system, nervous system and circulating system. Therefore the researches on evaluation on biomechanics of human body by using finite element method are conducted abroad and home. CAE Lab., develops the finite element foot-ankle complex model and spine model and researches the technical method to evaluate the biomechanical parameters
Application of nonlinear finite element method(Manufacturing Process Design of aluminum Alloy Bolt)
In this study, manufacturing process of aluminum alloy bolt has been designed from forming to heat treatments. Forming process consists of cold forging and rolling. CAE simulation using FEM was employed to design the cold forging process. In the cold forging process, perform shape was designed and damage value was considered for die design. By using the forming design obtained from simulation, prototype was produced through two steps of forging as a final process, solution heat treatment and aging process was employed. A finished prototype was found to meet the required specifications of tensile strength and size.