A5100609342- Topology Optimization in Engineering
- Composite Structure Analysis and Optimization
- Electric Motor Design and Analysis
- Advanced Multi-Objective Optimization Algorithms
- Vibration and Dynamic Analysis
- Composite Material Mechanics
- Microwave Engineering and Waveguides
- Metallurgy and Material Forming
- Engineering Applied Research
- Piezoelectric Actuators and Control
- Advanced Antenna and Metasurface Technologies
- Thermal Analysis in Power Transmission
- Structural Analysis and Optimization
- Antenna Design and Analysis
- Electromagnetic Compatibility and Noise Suppression
- Advanced Battery Technologies Research
- Dynamics and Control of Mechanical Systems
- Advanced machining processes and optimization
- Advanced Mathematical Modeling in Engineering
- Rheology and Fluid Dynamics Studies
- Metal Forming Simulation Techniques
- Drilling and Well Engineering
- Electromagnetic Compatibility and Measurements
- Tunneling and Rock Mechanics
- Hydrocarbon exploration and reservoir analysis
Gwangju Institute of Science and Technology
2017-2024
Korea Institute of Industrial Technology
2013-2024
Pusan National University
2023
Yonsei University
2005-2023
Pukyong National University
2023
Myongji University
2023
Sejong University
2015-2022
Korea Evaluation Institute of Industrial Technology
2016-2021
Samsung (South Korea)
2001-2020
LG (South Korea)
2020
Novel slot-shaped defected ground structures (DGSs) on the microstrip line are presented to provide a band-rejection property with an improved Q factor. Two different geometries (U-slot and V-slot) investigated. U-slot V-slot DGSs have simple shapes compared conventional DGSs, however, they more steep rejection characteristics. The factor of for DGS increases when distance between two slots in U-shape decreases. Similarly, provides higher characteristic slot angle is reduced. bandstop...
Summary A general topology optimization method, which is capable of simultaneous design density and orientation anisotropic material, proposed by introducing variables in addition to the variable. In this work, Cartesian components vector are utilized as variables. The method supports continuous design, out scope discrete material approaches, well using angle sets. advantage approach that element representation less likely fail into local optima because it depends on designs former steps,...
This paper presents structural topology optimization applied to the coupled magneto-structural problem. The design goals are minimize mechanical compliance and maximize total magnetic force. To calculate force, analysis is performed using finite-element method. From solution of a magnetostatic analysis, distribution body force obtained virtual air gap scheme. from calculated then provides compliance. sensitivity for adjoint method, derived verified by comparing it with finite difference...
This paper presents structural topology optimization of an electro/permanent magnet linear actuator. The goal is to maximize the average magnetic force acting on a plunger that travels over distance 20 mm. To achieve this goal, field sources (i.e., permanent magnet, positive and negative direction coils), ferromagnetic material yoke are simultaneously co-designed using four design variables for each finite element. calculated Maxwell stress tensor method coupled with finite-element analysis....
The goal of this article is to develop a new topology optimization framework that can secure the manufacturability synchronous reluctance motors (SynRMs) with multiple iron webs and bridges while satisfying required electromagnetic mechanical performances. In SynRM, are crucial achieve higher torque structural safety. A minimum thickness web bridge should also be guaranteed manufacturability. To acquire optimal SynRM satisfy above characteristics, two-stage proposed an individual...
Demand for higher bandwidth DRAM continues to increase, especially in high-performance computing and graphics applications. However, conventional devices such as DDR4 DIMM GDDR5 cannot satisfy these needs since they are limited less than 30GB/s. Also, if multiple GDDR DRAMs used simultaneously bandwidth, then high power consumption routing congestion on PCBs become a big concern. In order overcome limitations, the high-bandwidth memory (HBM) was recently introduced[1]. HBM-DRAM uses TSV...