Post doctor


Changwoo Lee 이창우 I Postdoctoral Fellow

E-mail: changwoolee@kaist.ac.kr

Phone: +82-42-350-1282 (Office)

Research topic:

- Multiphysics (Structural/Electromagnetic/Thermal) Finite Element Analysis

- Topology (Design) Optimization for E-mobility (Electric Motors, Light-weight Vehicle, Wireless Power Transfer)

- Optimal Inverter Control Strategies Considering Model Uncertainty

Personal Information

  • Education and Experience

- Post-doc (Current): KAIST, Institute of Mechanical Technology

- Ph.D. (2022): KAIST, Graduate School of Green Transportation

(Dissertation Title: A Study on Topology Optimization of Interior Permanent Magnet Synchronous Motors for Maximum Torque Operation)

- M.S. (2017): KAIST, Graduate School of Green Transportation

(Dissertation Title: Shape Optimization of Switched Reluctance Motors Considering Complicated Shape Features and Electric Parameters)

- B.S. (2015): Ajou University, Mechanical engineering


  • International Journal

- S. B. Lee, C. Lee, and I. G. Jang, "Precise Determination of the Optimal Coil for Wireless Power Transfer Systems through Postprocessing in the Smooth Boundary Representation," IEEE Transactions on Magnetics, vol. 53, no. 6, 2017. (Impact Factor: 1.700)

- C. Lee, J. Lee, and I. G. Jang, "Shape Optimization-based Design Investigation of The Switched Reluctance Motors Regarding The Target Torque and Current Limitation," Structural and Multidisciplinary Optimization, vol. 64, pp. 859-870, 2021. (Impact Factor: 4.542, Q1, Top 13%)

- C. Lee, and I. G. Jang, "Topology Optimization of Multiple-barrier Synchronous Reluctance Motors with Initial Random Hollow Circles," Structural and Multidisciplinary Optimization, vol. 64, pp. 2213-2224, 2021. (Impact Factor: 4.542, Q1, Top 13%)

- C. Lee, J. Lee, and I. G. Jang, "Topology Optimization for the Manufacturable and Structurally Safe Synchronous Reluctance Motors with Multiple Iron Webs and Bridges," IEEE Transactions on Industrial Electronics, vol. 70, no. 1, pp. 678-687, 2022. (Impact Factor: 8.236, Q1, Top 3%)

- C. Lee, and I. G. Jang, "Topology Optimization Framework for Simultaneously Determining the Optimal Structural Design and Current Phase Angle of the IPMSMs for the MTPA Control," IEEE Transactions on Industrial Electronics, vol. 70, no. 3, pp. 2866-2875, 2022. (Impact Factor: 8.236, Q1, Top 3%)

- C. Lee, and I. G. Jang, "Multi-material Topology Optimization for the PMSMs under the Consideration of the MTPA Control," Structural and Multidisciplinary Optimization, vol. 65, no. 9, pp. 1-11, 2022. (Impact Factor: 4.542, Q1, Top 13%)

- C. Lee, and I. G. Jang, "Topology Optimization of the IPMSMs Considering both the MTPA and FW Controls under the Current and Voltage Limitations," IEEE Transactions on Industrial Electronics, Under Revision. (Impact Factor: 8.236, Q1, Top 3%)

- C. Lee, and I. G. Jang, "Topology Optimization-based Design Framework of Synchronous Reluctance Motors Considering the FW and MTPV Weakening Controls," IEEE Transactions on Energy Conversion, Under Revision. (Impact Factor: 4.877, Q1, Top 23%)

- C. Lee, and I. G. Jang, "Ferrite-and-Coil Topology Optimization of the Multi-transmitter WPT System for Designing the Lightweight Portable Devices", IEEE Transactions on Industrial Electronics, Under Review. (Impact Factor: 8.236, Q1, Top 3%)

- C. Lee, and I. G. Jang, "Computationally Efficient Topology Optimization for the SynRMs Based on the Torque Curve Interpolation," Structural and Multidisciplinary Optimization, Under Review. (Impact Factor: 4.542, Q1, Top 13%)


  • International Conference

- S. B. Lee, C. Lee, and I. G. Jang, "Precise Determination of the Optimal Coil for Wireless Power Transfer Systems through Postprocessing in the Smooth Boundary Representation," IEEE Conference on Electromagnetic Field Computation, 2016.

- S. B. Lee, C. Lee and I. G. Jang, "Coil Layout Optimization for the Wireless Power Transfer Systems Using Smooth Boundary Representation," Asian Congress of Structural and Multidisciplinary Optimization, 2016.

- C. Lee, J. Lee, S. B. Lee, and I. G. Jang, "Development of Optimization Framework for Switched Reluctance Motors Considering Complicate Shape and Electric Parameters," Asian Congress of Structural and Multidisciplinary Optimization, 2018.

- C. Lee, J. Lee, S. B. Lee, and I. G. Jang, "Shape Optimization of Switched Reluctance Motors Considering Complicate Shape," IEEE Conference on Electromagnetic Field Computation, 2018.

- C. Lee, J. Lee, and I. G. Jang, "Two-stage Topology Optimization Framework of the Rare-earth-free Synchronous Reluctance Motors Considering Manufacturability and Structural Safety," Asian Congress of Structural and Multidisciplinary Optimization, 2022.


  • Domestic Conference

- C. Lee and I. G. Jang, "Shape Optimization of Switched Reluctance Motors Considering Complicate Shape Features and Electric Parameters," Korean Auto-vehicle Safety Association, 2017.

- S. S. Noh, C. Lee, and I. G. Jang, "Shape Optimization of Interior Permanent Magnet Synchronous Motor Considering Current Harmonics in According with PWM Inverter," The Korean Society of Mechanical Engineers, 2019.

- C. Lee, and I. G. Jang, "A Case Study on Topology Optimization of the Permanent Magnet Motors with the Maximum Torque Control Using the Finite Element Analysis," The Korean Society of Mechanical Engineers, 2022.

- C. Lee, J. Byun, Y. Kim, and I. G. Jang, "Temperature Estimation and Fault Diagnosis of an Electric Motor in the Hybrid Diesel-electric Trucks For the Deep Learning Network Training," The Korean Society of Mechanical Engineers, 2022.


  • Patent

- I. G. Jang, C. Lee, et. al., "Low-cost Modification Method for Operating Accessories of A Vehicle Using An One-way Clutch Pulley," US Patent, Application Number: 16204256, 2018.

- I. G. Jang, C. Lee, et. al., "Low-cost Modification Method for Operating Accessories of A Vehicle Using An One-way Clutch Pulley," KR Patent, Registration Number: 10-2018-0075744, 2019.

- I. G. Jang, and C. Lee, "Topology Optimization-based Design Method and Apparatus of High-performance Motors Considering Manufacturability and Structural Safety," KR Patent, Application Number: 10-2021-0190555, 2021.

- I. G. Jang, and C. Lee, "Topology Optimization-based Design Method and Device of Permanent-magnet-electric Motor Considering Maximum-torque-per-unit-ampere and field-weakening Controls," KR Patent, Application Number: 10-2022-0153700, 2022


  • Project

- KAIST, "Feasibility Study on Eco-friendly Hybrid Diesel-electric Trucks for Parcel Delivery Service," Ministry of Land, Infrastructure, and Transport of Korean Government, 2016.08.-2017.02.

- KAIST, "Development of Hybrid Electric Vehicle Conversion Kit for Diesel Delivery Trucks and Its Commercialization for Parcel Services," Ministry of Land, Infrastructure and Transport of Korean Government, 2017.07.-2021.03.

- KAIST, "Development of The Hairpin-winding and Electrical-steel-sheet Design Techniques for The Electric-vehicle Traction Motors," AI Platform Center for Manufacturing at KAIST, 2021.07-2021.12. (Student Proposal-and-Management Project)

- KAIST, "Development of A High-performance Linear Actuator of the Industrial Hammer Breaker for Preventing the White Finger Syndrome," Industrial Liaison Center at KAIST, 2022.07.-2023.06. (Post-doc Proposal-and-Management Project)


  • Award

- Young Scientist Award, Asian Congress of Structural and Multidisciplinary Optimization, 2022.

- Best Student Research Award, Cho Chun Shik Graduate School of Mobility, KAIST, 2022.

- Excellence Prize of Manufacturing Advanced and Intelligent Challenges, AI Platform Center for Manufacturing at KAIST, 2021.


  • Academic Services

- Technical Session Chair, Asian Congress of Structural and Multidisciplinary Optimization, 2022.

Bong Ju Chun 천봉주 I Postdoctoral Fellow

E-mail: path2moon@kaist.ac.kr

Phone: +82-42-350-1282 (Office)

Research group: BSO

Personal Information

  • Education

- Ph.D.: KAIST, Graduate School of Mobility

- M.S.: KAIST, Mechanical engineering

- B.S.: KAIST, Mechanical engineering


  • International Journal

- BJ.Chun and I.G.Jang,"Determination of the representative static loads for cyclically repeated dynamic loads: a case study of bone remodeling simulation with gait loads", Computer Methods and Programs in Biomedicine 200 (2021) 105924., doi: 10.1016/j.cmpb.2020.105924 (Impact factor : 5.428)

- BJ.Chun, SM.Shin, JJ.Kim and I.G.Jang,"Patchwise trabecular bone reconstruction of a 2D proximal femur using deep learning and seamless quilting algorithm", Computer Methods and Programs in Biomedicine, In preparation (Impact factor : 5.428)

- BJ.Chun and I.G.Jang,"Framework of sampling the subject-specific static loads from the gait cycle of interindividual variation", Computer Methods and Programs in Biomedicine, Under review (Impact factor : 5.428)


  • International Conference

- BJ.Chun, SM.Sin and I.G.Jang,"Patchwise bone microstructure reconstruction", ASEM21.

- SM.Sin, BJ.Chun and I.G.Jang,"Deep learning-based patchwise resolution enhancement with quilting algorithm", ESB2021.

- BJ.Chun and I.G.Jang,"A validation study of determining the representative static loads for dynamic loading for conducting efficient bone remodeling simulation", ACSMO2020.

- BJ.Chun, SM.Sin and I.G.Jang,"Patchwise-connected resolution enhancement for healthy weight-bearing bones using deep learning", ACSMO2020.

- BJ.Chun and I.G.Jang,"Determination of the representative static loads for dynamic loads: A case of gait cycle", ESB2019.

- J.J.Kim, Y.H.Lee, BJ.Chun and I.G.Jang,"Topology Optimization-based Bone Reconstruction for QCT Scan Data: Clinical Feasibility Study with Micro-CT Scan Data", ESB 2019.

- BJ.Chun and I.G.Jang,"Determination of the representative static loads for dynamic loading for efficient bone remodeling simulation: a case study of walking", WCSMO13.

- J.J.Kim, BJ.Chun and I.G.Jang,"Topology optimization-based resolution enhancement of clinical CT images for investigating bone microstructure", WCB 2018.

- J.J,Kim, BJ, Chun, Y.H.Lee, and I.G.Jang,"Clinical case study of topology optimization-based resolution enhancement of CT images for proximal femur", KCR 2017.


  • Domestic Conference

- 천봉주, 장인권, "효율적인 골 재형성 전산모사를 위한 걸음걸이 하중의 대표 정적 하중 결정 프레임워크 개발", 대한기계학회, 2021

- 천봉주, 신상민, 장인권, "인공신경망 기반의 위상최적설계와 퀼팅을 사용한 패치 별 골격계 영상 고해상화", 대한기계학회 CAE 및 응용역학 부문, 2021

- 천봉주, 장인권, "골 재형성 전산모사의 계산 효율성 향상을 위한 일상 활동의 대표 정적 하중 결정: 보행의 경우", 대한기계학회 CAE 및 응용역학 부문, 2019

- 김정진, 천봉주, 장인권, "골격계 영상 고해상화를 위한 위상최적설계 기반 골 미세구조 재구성 방법의 임상적 타당성 분석", 대한기계학회 CAE 및 응용역학 부문, 2019


  • Patent & Award

- I. G. Jang, H. J. Koh, and B. J. Chun, "COMPUTER SYSTEM FOR TRABECULAR CONNECTIVITY RECOVERY OF SKELETAL IMAGES RECONSTRUCTED BY ARTIFICIAL NEURAL NETWORK THROUGH NODE-LINK GRAPH-BASED BONE MICROSTRUCTURE REPRESENTATION, AND METHDO OF THE SAME", KR Patent, Application Number: 10-2021-0137093, 2021


  • Project

- BJ Chun, "Development of static representation method for time-dependent load data to increase the computational efficiency of patient-specific bone remodeling simulation", KAIST HRHRP 2018.