Kyung Hee University · Engineering
Professor Jin-Gyun Kim's research lab specializes in advanced structural dynamics and mechanical reliability, focusing on component mode synthesis methods for efficient and accurate model reduction in finite element analysis. The lab develops innovative techniques to enhance traditional methods like Craig–Bampton and flexibility-based component mode synthesis, with an emphasis on improving accuracy while minimizing computational cost. Research also extends to materials science, particularly the electrochemical behavior and corrosion properties of magnesium-based sacrificial anodes for marine and aerospace applications. The lab integrates computational mechanics with experimental validation to support the design of high-performance engineering systems.
Figures are computed from collected data and may differ slightly.
In this paper, we propose a new component mode synthesis method by enhancing the Craig–Bampton (CB) method. To develop the enhanced CB method, the transformation matrix of the CB method is enhanced considering the effect of residual substructural modes and the unknown eigenvalue in the enhanced transformation matrix is approximated by using O'Callahan's approach in Guyan reduction. Using the newly defined transformation matrix, original finite element models can be more accurately approximated b
Effects of alloying elements on electrochemical properties of magnesium-based sacrificial anodes were evaluated. Potentiodynamic, galvanostatic, potentiostatic, scanning electron microscopy (SEM), and x-ray diffraction (XRD) analyses were used to investigate the corrosion rate, efficiency, and surface characteristics of anodes. Polarization data indicated that alloying with manganese, aluminum, and zinc reduced the corrosion rates of magnesium anodes. All anodes did not undergo passivation but d
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