Research
Research overview
We develop computational modeling and simulation methods of structures based on classical mechanics, in particular, for dynamics and vibration.
Our current academic focus is to develop modeling and simulation methods in the following areas:
Dynamics (mainly rigid/flexible multibody dynamics)
Vibration (with dynamic substructuring, modal analysis, etc)
Multiphysics (particularly for NVH and electrification issues with vibroacoustic, thermo-mechanical, electromagnetic, etc)
We also tackle broad range projects of vibration, dynamics and CAE issues with both academic and industrial partners.
모델링/시뮬레이션 (Modeling and simulation, M&S) 기술은 이공학의 전 분야에 적용되는 핵심 기술로 본 연구실에서는 동역학 및 진동 분야를 중심으로 연구 개발을 진행하고 있습니다. 먼저 유한요소법 (Finite element method), 다물체동역학 (Multibody dynamics) 등의 역학 (Classical Mechanics) 기반 deterministic M&S 기술 개발과 함께 불확실성을 고려한 stochastic M&S 기술을 개발하고 있으며, 최근 Multi-physics M&S 기술, data-driven M&S 기술 (실험/데이터 기반)개발에 연구 역량을 집중하고 있습니다. 개발된 기술은 다양한 기계시스템 (자동차, 가전, 중공업, 정밀기기, 의료기기 등)의 동역학, 진동, NVH, 전동화 문제 해결에 폭넓게 활용되고 있습니다. 본 연구실은 주요연구 분야를 중심으로, 각 기술의 연계를 통한 고성능 M&S 기술 개발 및 이의 활용을 지향하고 있습니다.
1. Dynamics
Multibody dynamics and flexible multibody dynamics
Machine learning approaches for nonlinear dynamics
Uncertainty quantification: MC, PCE, etc
System identification
2. Vibration
Dynamic substructuring and component mode synthesis
Finite element model updating and modal analysis
System and source identification (time domain and frequency domain - BF TPA)
Motor NVH
A framework of real-time virtual sensing system of fluid-filled pipe, Ref: S Oh et al. [P24], see Presensation (granted by KAERI)
Tablet based virtual sensing system of fluid-filled pipe, Ref: S Oh et al. [P24], see Presensation
A framework of real-time inverse force identification of MDPS motor (granted by Hyundai Mobis)
Digital twin framework of Nuclear engineering
3. Multiphysics
Inverse heat conduction
Thermo-mechanical vibration
Electro-magnetic-thermal interaction
Thermo-mechanical multiphysics model reduction, Ref: JG Ahn et al. [J69], see Journal