Our interest is in developing effective mathematical models and numerical procedures for various types of physical and mechanical problems. We are studying numerical methods for analyzing structural and fluid뱒tructure interaction problems. We are also challenging the experimental biology field. We have mainly worked in the following areas:
 
Finite Element Method 
We study the FEM (finite element method) technologies and develop solid and structural finite elements used for solving various physical and mechanical problems.

 
Fig. 1 Continuum mechanics based shell (left) and beam (right) finite elements
 
 
 
 
Fig. 2 Strain smoothed element method (left) and the enriched FEM (right)
 
 
 
  Fig. 3 Smoothed MITC3+ shell element (left) and a layered beam element (right)
 
 
Fluid-Structure Interactions 
We develop numerical methods for hydrodynamic analysis of deformable floating structures and fluid-structure interaction (FSI) problems using FEM, BEM (boundary element method), and SPH (smoothed particle hydrodynamics).


 
Fig. 4 Hydro-elastic and -elastoplastic analyses
 

 

Fig. 5 Smoothed particle hydrodynamics (SPH)

 
 
 
Structural Systems 
We study the basics of solid and structural mechanics and develop new structural systems that focus on offshore structures such as ocean nuclear power plants, floating wind turbines, and ships.
 
 
Fig. 6 Gravity-based ocean nuclear power plants
 

 
Fig. 7 Floating nuclear power plants (left) and floating wind turbines (right)
 
 
 
AI (Artificial Intelligence)-based Analysis
We study data-driven finite element models for linear and nonlinear analyses of structural systems through machine learning (ML).
 
 
Fig. 8 Large deformation analysis using machine learning
 
 
 
Fig. 9 Damage detection and diagnostics of mechanical systems using machine learning
 
 
Remote Control System for Animals
We develop innovative systems which can remotely guide live animals using body-attached devices and special stimuli. We also develop technologies for deep brain stimulation.
 
 
Fig. 10 Remote guidance of turtles and mice

 
 
Fig. 11 System to steer mice using an object-craving brain circuit (left) and wireless deep brain stimulation (right)
 
 
 
  
PROJECTS


DSME (슦議곗꽑빐뼇) | 꽑諛 뿴꽑 諛⑺샇 諛 李⑦룓 媛쒕뀗 뿰援 | Jul 2022-Jun 2023.

KAIST (븳援怨쇳븰湲곗닠썝) | 뤃뜑釉 뵒뒪뵆젅씠 二쇰쫫 諛⑹ 硫붿빱땲利 媛쒕컻 | Jun 2022-Dec 2022.

SHI (궪꽦以묎났뾽) | 嫄곗<援/뿏吏꾨8 蹂삎 썝씤 遺꾩꽍 뿰援 | Dec 2021-Mar 2023.

HHI (쁽以묎났뾽) | 끂썑 뵆옯뤌 닔紐 뿰옣쓣 쐞븳 援ъ“嫄댁쟾꽦紐⑤땲꽣留(SHM) 湲곗닠 媛쒕컻 | Oct 2021-Sep 2022.

KSOE (븳援議곗꽑빐뼇) | 깂냼꽦 옱猷 嫄곕룞 Shell Solver 媛쒕컻 | Aug 2021-Dec 2021.

KAIST (븳援怨쇳븰湲곗닠썝) | 뤃뜑釉 뒪留덊듃룿슜 뵆젆떆釉 뵒뒪뵆젅씠 二쇰쫫 諛⑹ 옣移 | May 2021-Dec 2021.

KoFONS (븳援썝옄젰븞쟾옱떒) | 룺諛쒕Ъ 諛 李⑤웾媛뺤뒿 쐞삊뿉 븳 썝옄젰떆꽕 臾쇰━쟻諛⑸꼍 꽦뒫寃利앹쓣 쐞븳 DB 援ъ텞 | Apr 2021-Dec 2026.

RIMS (옱떒踰뺤씤 以묒냼議곗꽑뿰援ъ썝) | 뒪留덊듃빞뱶 쟾臾몄씤젰뼇꽦 | Mar 2021-Feb 2026.

Hanwha Energy Corporation (븳솕뿉꼫吏) | 닔긽깭뼇愿 遺쑀떇 援ъ“臾 諛 怨꾨쪟 꽕鍮꾩쓽 援ъ“쟻 븞쟾꽦 룊媛 | Sep 2020-Mar 2021.

Hankook Tire & Technology (븳援씠뼱븻뀒겕濡쒖) | 湲곌퀎븰뒿쓣 씠슜븳 꽦삎 옄룞 뀑똿 諛 媛瑜 Bladder 닔紐 삁痢 湲곗닠 媛쒕컻 Jan 2020-Dec 2020.

ADD (援諛⑷낵븰뿰援ъ냼) | 옣二쇨린 떎紐⑹쟻 臾댁씤옞닔紐⑦븿 빑떖湲곗닠 媛쒕컻 | Nov 2019-Nov 2024.

KETEP (븳援뿉꼫吏湲곗닠룊媛썝) | 빐긽 蹂듯빀 諛쒖쟾 떆뒪뀥 쑖빀 꽕怨 諛 슫쁺 吏뒫솕 怨좉툒듃옓 | Apr 2018-Dec 2022.

INNOPOLIS Foundation (뿰援ш컻諛쒗듅援ъ쭊씎옱떒) | 젙솗븳 怨⑤떎怨듭쬆 吏꾨떒쓣 쐞빐 DXA 쁺긽쓽 3李⑥썝 怨좏빐긽솕 쑀븳슂냼빐꽍쓣 뿰怨꾪븳 李⑥꽭 怨⑤룄 痢≪젙湲 媛쒕컻 | Apr 2018-Mar 2020.

NRF (븳援뿰援ъ옱떒) | Numerical methods for analysis of highly nonlinear multi-physics problems in ocean systems engineering (빐뼇怨듯븰뿉꽌 怨좊룄쓽 鍮꾩꽑삎꽦쓣 媛뽯뒗 떎臾쇰━ 긽샇옉슜 臾몄젣뱾쓽 닔移섑빐꽍 湲곕쾿 媛쒕컻) | Mar 2018-Feb 2023.

KHNP (븳援닔젰썝옄젰) | Development of IoT-based condition monitoring and intelligent self-diagnosis system for pump-turbines (IoT 湲곕컲 긽깭媛먯떆 諛 吏뒫삎 옄媛吏꾨떒쓣 넻븳 럩봽닔李 씠긽 吏뺥썑 삁痢↔린닠 媛쒕컻) | Feb 2018-Jan 2020.

HHI (쁽以묎났뾽) | 떆裕щ젅씠뀡 湲곕컲쓽 꽑泥 蹂삎 諛 젙룄 삁痢 떆뒪뀥 媛쒕컻 | Jul 2017-Jun 2019.

DSMI (옱궃븞쟾湲곗닠媛쒕컻궗뾽떒) | Development of rapid response technology for oil spill prevention (쐞뿕臾쇱쭏 빐긽쑀異 솗궛諛⑹ 湲닿툒쓳 湲곗닠 媛쒕컻) | May 2016-Dec 2019.

ADD (援諛⑷낵븰뿰援ъ냼) | Near field under water explosion laboratory (닔以 洹쇱젒룺諛 듅솕뿰援ъ떎) | Oct 2015-Dec 2020.

DSMI (옱궃븞쟾湲곗닠媛쒕컻궗뾽떒) | Development of technologies and equipments for HNS (Hazardous and Noxious Substance) outflow disaster response (HNS 쑀異 솗궛 李⑤떒 諛 쓳 넻떊 옣鍮 媛쒕컻) | May 2015-Dec 2018.

NRF (븳援뿰援ъ옱떒) | Core technology development of SMART mounted 100MWe floating-type NPP (SMART 깙옱 100MWe 遺쑀떇 썝옄젰 諛쒖쟾냼 빑떖 湲곕컲湲곗닠媛쒕컻) | Jun 2014-May 2017. 
 
NRF (븳援뿰援ъ옱떒) | Development of a three dimensional hydroelastic analysis tool for floating structures (遺쑀떇 빐긽援ъ“臾쇱쓽 3李⑥썝 쑀깂꽦 빐꽍 봽濡쒓렇옩 媛쒕컻(썑냽1李⑤뀈)) | May 2014-Apr 2017.
 
KAIST (븳援怨쇳븰湲곗닠썝) | Development of Floating Type Ocean Wind Power System with Economic Competitive Edge (寃쎌웳젰쓣 媛뽰텣 遺쑀떇 빐뼇 뭾젰 떆뒪뀥 媛쒕컻) | Mar 2014-Dec 2018.
 
KIER (븳援뿉꼫吏湲곗닠뿰援ъ썝) | 遺쑀떇 뭾젰諛쒖쟾湲 븯遺떆뒪뀥 媛쒕뀗 諛 뿰룞빐꽍湲곗닠 媛쒕컻 | Jan 2014-Oct 2014.
 
KRRI (븳援泥좊룄湲곗닠뿰援ъ썝) | 궡吏꾪빐꽍, 뙆옉 諛 빐瑜섎젰 빐꽍떆뒪뀥 닔移섎え뜽 媛쒕컻 | Apr 2013-Dec 2015.
 
SHI (궪꽦以묎났뾽) | FEM Modeling Core 媛쒕컻 | Apr 2013-Apr 2014.
 
KODIPA (듅닔踰뺤씤븳援諛⑹옱삊쉶) | Development of Analysis Technology for Damage to Civil Structures from Tsunami (吏吏꾪빐씪뿉 쓽븳 援ъ“臾 뵾빐遺꾩꽍湲곗닠 媛쒕컻) | Apr 2012-Apr 2015.

DSME (슦議곗꽑빐뼇) | Safety evaluation and enhancement of GBS type Ocean Nuclear Power Plant (GBS瑜 솢슜븳 빐긽썝옄젰 諛쒖쟾 뵆옖듃쓽 븞젙꽦 룊媛 諛 利앹쭊) | Mar 2012-Dec 2012.

KAIST (븳援怨쇳븰湲곗닠썝) | Remote control system for animals using behavior biology (뻾룞 깮臾쇳븰쓣 넻븳 빐뼇 룞臾쇱쓽 썝寃⑹젣뼱 떆뒪뀥 媛쒕컻) | Jan 2012-Jan 2013.
 
SHI (궪꽦以묎났뾽) | OFD 깙옱臾 젙룄 愿由щ 쐞븳 쑀븳슂냼 援ъ“紐⑤뜽 媛쒕컻 | Aug 2011-Feb 2012.
 
MKE (吏떇寃쎌젣遺) | Advanced education track for infrasystems of ocean renewable energy (빐뼇 떊옱깮뿉꼫吏 씤봽씪떆뒪뀥 援ъ텞 怨좉툒 듃옓) | Jun 2011-May 2016.
 
NRF (븳援뿰援ъ옱떒) | Development of a three dimensional hydroelastic analysis tool for floating structures (遺쑀떇 빐긽援ъ“臾쇱쓽 3李⑥썝 쑀깂꽦 빐꽍 봽濡쒓렇옩 媛쒕컻) | May 2011-Apr 2014.
 
KAIST (븳援怨쇳븰湲곗닠썝) | Extreme risk preparedness (옱궃鍮 諛 쓳뿭웾 媛뺥솕諛⑹븞 諛 湲곗닠뿰援) | Jan 2011-Dec 2012.
 
KAIST (븳援怨쇳븰湲곗닠썝) | Virtual reality-based remote control system for animals (媛긽 옄洹뱀쓣 넻븳 臾쇨퀬湲 썝寃 쑀룄 湲곗닠 뿰援) | Sep 2010-Dec 2011.
 
KEIT(븳援궛뾽湲곗닠룊媛愿由ъ썝) | Automatic ship-to-ship docking system (꽑諛뺢컙 옄룞 룄궧 떆뒪뀥) | May 2010-Jun 2011.
 
POSCO (룷뒪肄) | New product development of transportable ocean nuclear power plants (빐긽 슫넚씠 媛뒫븳 紐⑤뱢삎 빐긽 썝옄젰諛쒖쟾 떆뒪뀥 떊긽뭹 媛쒕컻) | Nov 2010-Apr 2011.
 
KICT (븳援嫄댁꽕湲곗닠뿰援ъ썝) | Total Lagrangian 젙떇솕뿉 湲곕컲븳 蹂쐞 돇 슂냼쓽 媛쒕컻 諛 諛뺥뙋 援ъ“臾 꽑삎 醫뚭뎬 빐꽍 | Jun 2010-Dec 2010.
 
KAIST-Changwon (븳援怨쇳븰湲곗닠썝-李쎌썝) | Development of presuure vessel for CO2 carrier (CO2 슫諛섏꽑 븬젰 슜湲 媛쒕컻) | Jan 2010-May 2010.
 
KAIST (븳援怨쇳븰湲곗닠썝) | Optimal design and motion analysis on semisubmersible mobile harbor (諛섏옞닔떇 紐⑤컮씪븯踰(MH-B1)쓽 嫄곕룞빐꽍 諛 理쒖쟻꽕怨) | Jun 2009-Dec 2009.
 
 
 
 
RESOURCES
 
FORTRAN codes for linear elastic analysis of 2D plane stress problems (developed by CMSS) 

MATLAB codes for hydroelastic analysis of floating beams (developed by CMSS) 

Freeware for 3D hydroelastic analysis of floating structures (will be distributed soon)

Freeware for extracting (x,y) data from scanned graphs (developd by PS Lee) 
 
CMSS Archive <- Members only access