한양대학교 · 공학
Gil Ho Yoon 교수의 연구실은 다물성 문제(음향-구조 상호작용, 유체-구조 상호작용 등)의 최적 설계를 위한 혁신적인 해법을 개발하고 있습니다. 특히, 전통적인 경계 표면 기반 접근의 한계를 극복하기 위해 요소 밀도 기반 대신 요소 연결성 파arameterization(ECP) 기반의 최적화 기법을 핵심으로 하며, 비선형 재료 거동과 복합 물리장 문제에 대한 수치적 안정성과 정확성을 확보합니다. 연구는 상용 유한요소 해석 소프트웨어와의 통합을 고려해 실용성과 적용 가능성을 높이고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Abstract The paper presents a gradient‐based topology optimization formulation that allows to solve acoustic–structure (vibro‐acoustic) interaction problems without explicit boundary interface representation. In acoustic–structure interaction problems, the pressure and displacement fields are governed by Helmholtz equation and the elasticity equation, respectively. Normally, the two separate fields are coupled by surface‐coupling integrals, however, such a formulation does not allow for free mat
Abstract This paper outlines a new procedure for topology optimization in the steady‐state fluid–structure interaction (FSI) problem. A review of current topology optimization methods highlights the difficulties in alternating between the two distinct sets of governing equations for fluid and structure dynamics (hereafter, the fluid and structural equations, respectively) and in imposing coupling boundary conditions between the separated fluid and solid domains. To overcome these difficulties, w
Abstract The application of the element density‐based topology optimization method to nonlinear continuum structures is limited to relatively simple problems such as bilinear elastoplastic material problems. Furthermore, it is very difficult to use analytic sensitivity when a commercial nonlinear finite element code is used. As an alternative to the element density formulation, the element connectivity parameterization (ECP) formulation is developed for the topology optimization of isotropic‐har
