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Driving Stability Analysis of Shelter Vehicles Passing by Each Other
윤정노(Jeongroh Yoon),손동훈(Donghun Son),정의봉(Euibong Jeong),김준(Joon Kim),장인갑(Inkab Jang) Korean Society for Precision Engineering 2017 한국정밀공학회지 Vol.34 No.11
Tactical devices and equipment are usually loaded on a trailer vehicle within a shelter system. When the vehicle is moving fast and passing other vehicles, side panels of the shelter are deformed and tilted by pressure waves. Also, the vehicle is subjected to the effects of wind load and centrifugal force with the pressure waves at severe conditions. In this study, a theoretical analysis of overturn calculated by CFD (Computational Fluid Dynamics) and experiments is applied to the vehicle. Deformations of the side panel are measured for experimental validation of the CFD model. As a result, the safety factor of the driving stability of the vehicle is derived by theoretical analysis in the severe situation predicted by the validated CFD model.
유한요소해석을 이용한 평면 응력을 받는 완전 고정된 판의 좌굴 판단 기준에 대한 연구
이오성(Ohseong Lee),이건민(Keonmin Lee),윤정노(Jeongroh Yoon),유구현(Guhyun Ryu) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
Buckling is undesirable phenomenon in designing mechanical elements. In particular, thin plate has low resistance about buckling due to its geometrical shape. Therefore, engineers have to be carful during the design proccess. Many preceding research derived buckling theories for various boundary conditions, but the solution of buckling mode is not a finite sum and is complicate to applicate in practical cases. Also, since the mathmetical solution of fully clamped rectangular plate is much more complicate than simply supported plate, the need for intuitively usable criteria emerges. Therefore, this study aims to suggest a criterion for clamped plate buckling by using finite element analysis method. From the results of iterative simulations, a criterion with simple straight lines was derived. This criterion does not strictly follow the curve from iterations, but since the derived criterion is simple and easy to applicate, it is worth enough for designing a thin plate.
유한요소해석을 이용한 평면 응력을 받는 완전 고정된 판의 좌굴 판단 기준에 대한 연구
이오성(Ohseong Lee),이건민(Keonmin Lee),윤정노(Jeongroh Yoon),유구현(Guhyun Ryu) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
Buckling is undesirable phenomenon in designing mechanical elements. In particular, thin plate has low resistance about buckling due to its geometrical shape. Therefore, engineers have to be carful during the design proccess. Many preceding research derived buckling theories for various boundary conditions, but the solution of buckling mode is not a finite sum and is complicate to applicate in practical cases. Also, since the mathmetical solution of fully clamped rectangular plate is much more complicate than simply supported plate, the need for intuitively usable criteria emerges. Therefore, this study aims to suggest a criterion for clamped plate buckling by using finite element analysis method. From the results of iterative simulations, a criterion with simple straight lines was derived. This criterion does not strictly follow the curve from iterations, but since the derived criterion is simple and easy to applicate, it is worth enough for designing a thin plate.