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pro vyhledávání: '"Pilseong Kang"'
Telescopes which use light that has propagated through atmospheric paths detect distorted wave generated by atmosphere turbulence. The distorted wave decreases an image quality of the telescope. Adaptive optics technology can be applied to compensate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c19ca0ef847f10f94a495215ba5e1e87
https://doi.org/10.21203/rs.3.rs-2257267/v1
https://doi.org/10.21203/rs.3.rs-2257267/v1
Publikováno v:
Optics express. 29(20)
In the present work, a discrete flexure for silicon carbide (SiC) deformable mirror (DM) with Lead-Magnesium-Niobate (PMN) stacked-actuators is designed using topology and size optimizations. In order to fulfill the designated surface strokes of the
Autor:
Sung-Kie Youn, Pilseong Kang
Publikováno v:
Finite Elements in Analysis and Design. 120:18-40
In the present research, the isogeometric topology optimization of shell structures is proposed. There have been lots of successful studies on the shape optimization using isogeometric analysis (IGA). However, it is not straightforward to apply the c
Autor:
Sung-Kie Youn, Pilseong Kang
Publikováno v:
Structural and Multidisciplinary Optimization. 53:825-845
In most of structural analyses and optimizations using the conventional isogeometric analysis, handling of trimmed or topologically complex geometries is difficult and awkward. A trimmed or topologically complex geometry is normally modeled with mult
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 366:113036
There have been quite a few research works on the topology optimization under stress constraints. However, most of them only treated two dimensional (2D) cases. In the present work, a new approach for topology optimization of three dimensional (3D) s
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 360:112685
In the present work, a new IGA-based MMV (moving morphable void) approach for structural topology optimization is developed. In this approach, the MMV-based topology optimization framework is seamlessly integrated into IGA by using TSA (trimming surf
Autor:
Sung-Kie Youn, Pilseong Kang
Publikováno v:
Finite Elements in Analysis and Design. 99:68-81
In the conventional isogeometric analysis, a topologically complex shell structure is required to be modeled using multiple NURBS patches. In the CAD industry, however, the topologically complex shell structure is conveniently and efficiently created
Publikováno v:
Aerospace Science and Technology. 29:413-425
In this paper, a variation of the critical projectile diameter of honeycomb sandwich panel (HC/SP), due to the channeling effect, is investigated by using smoothed particle hydrodynamics (SPH). Before performing numerical study on the channeling effe
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 40:555-563
In earth orbit, a great number of orbital debris move around in extremely high velocity, and they become serious threats to satellites. In this study, smoothed particle hydrodynamics(SPH) is used to analyze the damage of a low earth orbit satellite d
Publikováno v:
Measurement Science and Technology. 29:045012
Owing to the nonlinearity response of digital devices such as screens and cameras in phase-shifting deflectometry, non-sinusoidal phase-shifted fringe patterns are generated and additional measurement errors are introduced. In this paper, a new defle