한양대 멀티피직스 연구실

PUBLICATION

2022 [114] One-Step Fabrication of Superhydrophobic Surfaces with Wettability Gradient Using Three-Dimensional Printing

관리자 2023-12-27 37

J. Sung, H. M. Lee, G. H. Yoon, S. Bae, and H. So. International Journal of Precision Engineering and Manufacturing-Green Technology (2022): 1-12. Polymer surfaces with wettability gradient were fabricated using three-dimensional (3D) printing technology to control the velocity of droplets on the surfaces. A microscale pattern of a semicircular casting mold was created layer-by-layer using ...

2022 [113] Acoustic topology optimization using moving morphable components in neural network-based design

관리자 2023-12-27 42

K. H. Kim and G. H. Yoon. Structural and Multidisciplinary Optimization 65, no. 2 (2022): 47. In this study, we developed an acoustic topology optimization using moving morphable components (MMCs) for the design of two-dimensional sound reduction structures. MMC-based topology optimization has been developed for structural topology optimization; however, no extant ...

2022 [112] Topography and size optimization of composite structure to control buckling temperature and thermal buckling mode shape

관리자 2023-12-27 22

H. M. Lee, K. K. Lee, and G. H. Yoon. Thin-Walled Structures 171 (2022): 108686. Composite material has been widely used in the engineering field because of its excellent fatigue and corrosion resistance and good impact resistance. However, the structural instability of composite structure is observed due to the thermal buckling phenomena when applied wit...

2022 [111] Planar ultrasonic transducer based on a metasurface piezoelectric ring array for subwavelength acoustic focusing in water

관리자 2023-12-27 19

S. Hur, H. Choi, G. H. Yoon, N. W. Kim, D.-G. Lee, and Y. T. Kim. Scientific Reports 12, no. 1 (2022): 1485. The development of a new ultrasonic transducer capable of improved focusing performance has become a necessity to overcome the limitations of conventional ultrasonic transducer technology. In this study, we designed and optimized a metasurface piezoelectric ...

2022 [110] Model order reduction for Campbell diagram analysis of shaft-disc-blade system in 3D finite elements

관리자 2023-12-27 9

T. Phuor and G. H. Yoon. Structural Engineering and Mechanics 81, no. 4 (2022): 411-428. This paper presents the Campbell diagram analysis of the rotordynamic system using the full order model (FOM) and the reduced order model (ROM) techniques to determine the critical speeds, identify the stability and reduce the computational time. Due to the spin-speed...

2022 [109] A simple density filter for the topology optimization of coated structures

관리자 2023-12-27 40

B. Yi, G. H. Yoon, and X. Peng. Engineering Optimization 53, no. 12 (2021): 2088-2107. Coated structures are structures with a solid thin-walled coating enclosing substrates. Coated structures with porous substrates (infills) are often adopted in additive manufacturing to reduce the material cost and printing time, while improving robustness against local bucking, unknow...

2022 [108] Experimental study of the effect of the boundary conditions of fractured bone

관리자 2023-12-27 40

S. G. Sim, Y. J. Woo, D. Y. Kim, S. J. Hwang, K. T. Hwang, C. H. Lee, and G. H. Yoon. Journal of the Mechanical Behavior of Biomedical Materials 124 (2021): 104801. Reliable fracture diagnosis monitoring and analyzing low-frequency transverse vibration data can be achieved through an in-depth understanding of the physical interactions between wave propagation and boundar...

2022 [107] Investigation on numerical analysis and mechanics experiments for topology optimization of functionally graded lattice structure

관리자 2023-12-27 22

L. Liu, B. Yi, T. Wang, Z. Li, J. Zhang, and G. H. Yoon. Additive Manufacturing 47 (2021): 102275. A physical driven method for constructing functionally graded lattice structure is proposed by extending the conventional Solid Isotropic Material with Penalization (SIMP) method with linear buckling load factors and total volume constraints rather than intr...

2022 [106] Structural topology optimization of layout and raster angle for additive manufacturing technology with the shadow density filter

관리자 2023-12-27 34

G. H. Yoon. Computers & Structures 256 (2021): 106637. The present research contributes in the structural topology optimization with the manufacturing limitation called the overhang constraint and the optimization of the anisotropic material properties. For the optimization with self-supporting structure, the overhang-free shadow filter method is developed. To consid...

2022 [105] On the design of multimaterial structural topologies using Integer Programming

관리자 2023-12-27 32

R. Sivapuram, R. Picelli, G. H. Yoon, and B. Yi. Computer Methods in Applied Mechanics and Engineering 384 (2021): 114000. This paper presents a framework for the discrete design of optimal multimaterial structural topologies using integer design variables and mathematical programming. The structural optimization problems: compliance minimization subject to&nbs...