Updated on 2025/06/09

Information

 

写真a

 
YEO SUK HYUN
 
Organization
Faculty of Engineering Department of Aeronautics and Astronautics Assistant Professor
School of Engineering (Concurrent)
Graduate School of Engineering Department of Aeronautics and Astronautics(Concurrent)
Title
Assistant Professor
Contact information
メールアドレス
Tel
0928023051

Research Areas

  • Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Aerospace engineering

Degree

  • PhD in Aerospace Engineering

Research Interests・Research Keywords

  • Research theme: Evolutionary Computation

    Keyword: Evolutionary Computation

    Research period: 2025

  • Research theme: Multidisciplinary System Design Optimization

    Keyword: Multidisciplinary System Design Optimization

    Research period: 2025

  • Research theme: Space Propulsion Systems

    Keyword: Space Propulsion Systems

    Research period: 2025

  • Research theme: Space System Engineering

    Keyword: Space System Engineering

    Research period: 2025

  • Research theme: Space Transportation Systems

    Keyword: Space Transportation Systems

    Research period: 2025

Papers

  • Multi-objective design optimization and physics-based sensitivity analysis of field emission electric propulsion for CubeSat platforms Reviewed International coauthorship

    Suk Hyun Yeo, Dinaol Gadisa, Hideaki Ogawa, HyoChoong Bang

    Aerospace Science and Technology   195 ( 109516 )   2024.11

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    Field-emission electric propulsion is an electrostatic space electric propulsion technology that offers various advantageous features including efficient design, high specific impulse, and versatile thrust capabilities ranging from micro-Newton to milli-Newton levels. These characteristics make this type of propulsion a promising technology for small satellite platforms, enabling precise attitude control, orbit maintenance, and de-orbiting through ionization and acceleration of a liquid metal propellant. The growing demand for small propulsion systems in CubeSat platforms has spurred significant progress in modeling and characterizing field emission electric propulsion thrusters to enhance their overall performance. However, little study has been conducted to investigate the effect of geometric configurations on electric fields or expelled ion trajectories for design optimization. In this study, multi-objective design optimization is performed by incorporating electrostatic simulation coupled with an analytical performance model into evolutionary algorithms based on prediction from surrogate modeling, aiming to optimize the thruster emission design to maximize thruster performance. Physical insights into the key design factors influencing the performance of field emission electric propulsion have been gained by probing into the interaction between ion particles and electric field behavior within the thruster. It has been found that the length of the emitter tip has a significant effect on plume divergence, i.e., a longer emitter tip under the influence of electric field at higher emitter current tends to result in lower initial acceleration of emitted ions and subsequently wider spread or divergence of the ion beam. A shorter emitter tip, on the other hand, generates a sharper E-field gradient, resulting in a more focused and narrower ion beam. Additionally, sensitivity analysis has identified the mass flow rate and potential distributions as the most influential design factors on performance due to the active roles they play in the performance generation process.

    DOI: 10.1016/j.ast.2024.109516

    Repository Public URL: https://hdl.handle.net/2324/7234048

  • Physical Insights into Downsized Nozzle Geometry for Microwave Electrothermal Thruster via Evolutionary Algorithms

    Keisuke Suenaga, Suk Hyun Yeo, Tsubasa Ozawa, Hideaki Ogawa

    AIAA SCITECH 2024 Forum   2024.1

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    Language:Others   Publishing type:Research paper (other academic)  

    DOI: 10.2514/6.2024-2707

  • Multidisciplinary System Design Optimization for Lunar Transportation Missions via Surrogate-Assisted Evolutionary Algorithms

    Yuki Takao, Tsubasa Ozawa, Suk Hyun Yeo, Keisuke Suenaga, Aric Y. Bandera, Hideaki Ogawa

    AIAA SCITECH 2024 Forum   2024.1

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    Language:Others   Publishing type:Research paper (other academic)  

    DOI: 10.2514/6.2024-0206

  • Physical Insight into Divergent Discharge Channel for Low-Power Cusped Field Thruster via Evolutionary Algorithm

    Suk Hyun Yeo, Hideaki Ogawa

    34th International Symposium on Space Technology and Science   2023.6

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    Language:English   Publishing type:Research paper (other academic)  

  • Physical Insight into Microwave Electrothermal Thruster Startup via Multi-Objective Design Optimization and Plasma Simulation

    Tsubasa Ozawa, Suk Hyun Yeo, Hideaki Ogawa

    AIAA SCITECH 2023 Forum   2023.1

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    Language:Others   Publishing type:Research paper (other academic)  

    DOI: 10.2514/6.2023-1215

  • Multi-Objective Design Optimization of Cusped Field Thruster via Surrogate-Assisted Evolutionary Algorithms Reviewed

    Suk Hyun Yeo, Hideaki Ogawa

    Journal of Propulsion and Power   38 ( 6 )   2022.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2514/1.B38854

  • Multi-objective Design Optimization and Uncertainty Analysis of a Downscaled Cusped Field Thruster Reviewed

    Suk Hyun Yeo, Hideaki Ogawa

    Lecture Notes in Electrical Engineering   1397 - 1410   2022.9

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    Language:English   Publishing type:Research paper (other academic)  

    DOI: 10.1007/978-981-19-2635-8_99

  • Improved modeling for design optimization of cusped field thrusters with support of kinetic analysis Reviewed

    Suk Hyun Yeo, Hideaki Ogawa, Daniel Kahnfeld, Lars Lewerentz, Ralf Schneider

    Acta Astronautica   195   465 - 480   2022.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.actaastro.2022.03.016

  • Multi-Objective Design Optimization of Microwave Electrothermal Thruster

    Tsubasa Ozawa, Suk Hyun Yeo, Hideaki Ogawa, Milinda Suraweera

    33rd International Symposium on Space Technology and Science   2022.3

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    Language:Others   Publishing type:Research paper (other academic)  

  • Miniaturization perspectives of electrostatic propulsion for small spacecraft platforms Reviewed

    Suk Hyun Yeo, Hideaki Ogawa, Daniel Kahnfeld, Ralf Schneider

    Progress in Aerospace Sciences   126 ( 1 )   100742 - 100742   2021.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.paerosci.2021.100742

  • Multiobjective Optimization and Particle-In-Cell Simulation of Cusped Field Thrusters for Microsatellite Platforms Reviewed

    Suk Hyun Yeo, Hideaki Ogawa, Paul Matthias, Daniel Kahnfeld, Ralf Schneider

    Journal of Spacecraft and Rockets   57 ( 3 )   2020.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2514/1.a34584

  • Particle-in-cell simulation of an optimized high-efficiency multistage plaasma thruster Reviewed

    Paul Matthias, Daniel Kahnfeld, Ralf Schneider, Suk Hyun Yeo, Hideaki Ogawa

    Contributions to Plasma Physics   59 ( 9 )   2019.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/ctpp.201900028

  • Multi-Objective Optimization and Particle-In-Cell Simulation of Cusped Field Thruster for Micro-Satellites Platform

    Suk Hyun Yeo, Thomas Fahey, Hideaki Ogawa, Angus Muffatti, Padivattathumana N. Maya, Paul Matthias, Ralf Schneider

    AIAA SciTech Forum   2019.6

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    Language:English  

    DOI: 10.2514/6.2019-1245

  • Investigation of Influence of Magnet Thickness on Performance of Cusped Field Thruster via Multi-objective Design Optimization Reviewed

    Suk Hyun Yeo, Hideaki Ogawa

    Lecture Notes in Electrical Engineering   459   1969 - 1989   2019.6

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    Language:English   Publishing type:Research paper (other academic)  

    DOI: 10.1007/978-981-13-3305-7_159

  • Analysis of Effects of Magnet Configurations for Downscaled Cusped Field Thruster via Surrogate Assisted Evolutionary Algorithms Reviewed

    Suk Hyun Yeo, Hideaki Ogawa

    18th Australian Space Research Conference   81 - 96   2018.9

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    Language:English  

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Presentations

  • Multidisciplinary System Design Optimization for Lunar Transportation Missions via Surrogate-Assisted Evolutionary Algorithms International conference

    Yuki Takao, Tsubasa Ozawa, Suk Hyun Yeo, Keisuke Suenaga, Aric Y. Bandera, Hideaki Ogawa

    AIAA SCITECH 2024 Forum  2024.1 

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    Event date: 2024.1

    Language:English  

    Country:United States  

  • Physical Insights into Downsized Nozzle Geometry for Microwave Electrothermal Thruster via Evolutionary Algorithms International conference

    Keisuke Suenaga, Suk Hyun Yeo, Tsubasa Ozawa, Hideaki Ogawa

    AIAA SCITECH 2024 Forum  2024.1 

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    Event date: 2024.1

    Language:Others  

    Country:Other  

  • Investigation of Influence of Reverse Vortex Flow on Thermal Characteristics of Microwave Electrothermal Thrusters via Multi-objective design optimization International conference

    Tsubasa Ozawa, Suk Hyun Yeo, Keisuke Suenaga, and Hideaki Ogawa

    APISAT (Asia-Pacific International Symposium on Aerospace Technology ) 2023  2023.10 

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    Event date: 2023.11

    Language:English   Presentation type:Symposium, workshop panel (public)  

    Country:Japan  

  • GPU 超並列化を用いた代替モデル予測に基づくカスプ磁場型スラスタの多目的最適化

    西川英吾, 井上航, Suk Hyun Yeo, 小川秀朗,

    第65回宇宙科学技術連合講演会  2021.11 

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Physical Insight into Divergent Discharge Channel for Low-Power Cusped Field Thruster via Evolutionary Algorithm International conference

    SUK-HYUN YEO, HIDEAKI OGAWA

    34th International Symposium on Space Technology and Science 2022  2023.6 

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    Event date: 2023.9

    Language:English  

    Venue:Kurume   Country:Japan  

  • Analysis of Effects of Magnet Configurations for Downscaled Cusped Field Thruster via Surrogate Assisted Evolutionary Algorithms

    SUK-HYUN YEO, HIDEAKI OGAWA

    18th Australian Space Research Conference  2018.9 

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    Event date: 2023.9

    Language:English  

    Venue:Gold Coast, Australia   Country:Japan  

  • Investigation of Influence of Magnet Thickness on Performance of Cusped Field Thruster via Multi-objective Design Optimization International conference

    SUK-HYUN YEO, HIDEAKI OGAWA

    Asia-Pacific International Symposium on Aerospace Technology 2018  2018.10 

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    Event date: 2023.9

    Language:English  

    Country:China  

  • Multi-Objective Design Optimization of Microwave Electrothermal Thruster International conference

    TSUBASA OZAWA, SUK-HYUN YEO, HIDEAKI OGAWA, MILINDA SURAWEERA

    33rd International Symposium on Space Technology and Science 2021  2021.6 

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    Event date: 2023.9

    Language:English  

    Venue:Beppu   Country:Japan  

  • GPUを用いた代替モデル予測に基づく多目的設計最適化による熱的制約のカスプ磁場型スラスタの性能への影響に関する研究

    井上航, 西川英吾, YEO Suk Hyun , 小川秀朗

    日本航空宇宙学会西部支部講演会(2021) 西部支部  2021.11 

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    Event date: 2023.9

    Language:Japanese  

    Country:Japan  

  • Physical Insight into Microwave Electrothermal Thruster Startup via Multi-Objective Design Optimization and Plasma Simulation International conference

    TSUBASA OZAWA, SUK-HYUN YEO, HIDEAKI OGAWA

    AIAA Scitech 2022 Forum  2022.1 

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    Event date: 2023.9

    Language:English  

    Country:United States  

  • 遺伝的アルゴリズムによる マイクロ波熱電式スラスターのノズル形状最適化

    SUENAGA KEISUKE, OZAWA TSUBASA, MATSUNAGA MASANOBU , ITO SHOGO, YEO Suk Hyun, OGAWA HIDEAKI

    日本航空宇宙学会西部支部講演会(2022)・西部支部  2022.11 

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    Event date: 2023.9

    Language:Japanese  

    Country:Japan  

  • Multi-objective Design Optimization and Uncertainty Analysis of a Downscaled Cusped Field Thruster International conference

    SUK-HYUN YEO, HIDEAKI OGAWA

    Asia-Pacific International Symposium on Aerospace Technology 2021  2022.2 

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    Event date: 2022.11

    Language:English  

    Country:Korea, Republic of  

  • Multi-Objective Optimization and Particle-In-Cell Simulation of Cusped Field Thruster for Micro-Satellites Platform International conference

    SUK-HYUN YEO, THOMAS FAHEY, HIDEAKI OGAWA, ANGUS MUFFATTI, PADIVATTATHUMANA N MAYA, PAUL MATTHIAS, RALF SCHNEIDER

    AIAA SciTech Forum  2019.1 

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    Event date: 2022.11

    Language:English  

    Venue:San Diego   Country:United States  

    No

    Other Link: https://arc.aiaa.org/doi/abs/10.2514/6.2019-1245

  • Multidisciplinary System Design Optimization of Interplanetary Transfer Vehicle from Geostationary Transfer Orbit to Low Mars Orbit

    Suk Hyun Yeo, Yuki Takao, Keisuke Suenaga, Tsubasa Ozawa, Takaaki Matsuura, Hayato Mori, Javier Alfredo Jr. Morano, Hideaki Ogawa

    AIAA SciTech 2025 Forum  2025.1  AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025

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    Language:English  

    Mars exploration is driven by its proximity and scientific goals, such as search for life, studying surface features and planetary evolution as well as preparation for human missions. Designing a spacecraft for sizable payloads to Mars is challenging, especially with chemical propulsion systems that inherently require substantial mass of propellant for trajectory maneuvers. The interdependent subsystems managing mass and power budgets add complexity, which would inevitably need diverse expertise and substantial iterations in conventional design approaches. This intricate interplay significantly complicates spacecraft development. Multidisciplinary system design optimization offers a promising solution to these challenges by simultaneously considering multiple disciplines to achieve an optimal system design, accounting for the interdependencies among various subsystems. This study proposes a multidisciplinary system design optimization approach specifically tailored for interplanetary missions between Earth and Mars. This approach allows for design exploration simultaneously considering subsystems such as trajectory, propulsion, thermal control, attitude control, structure, mass, and power to optimize the overall system performance in terms of required velocity increments and time offlight while maximizing payload mass and fulfilling the requirements of each subsystem.

    DOI: 10.2514/6.2025-0771

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  • Multidisciplinary System Design Optimization of Interplanetary Vehicles With Solar Electric Propulsion

    Yuki Takao, Takaaki Matsuura, Suk Hyun Yeo, Tsubasa Ozawa, Keisuke Suenaga, Hayato Mori, Javier Alfredo Jr. Morano, Hideaki Ogawa

    AIAA SciTech 2025 Forum  2025.1  AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025

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    Language:English  

    Exploring Solar System objects such as planets, moons, and small bodies brings us vital information to unravel the origin of our universe. In such deep-space exploration missions using spacecraft, transporting abundant scientific instruments to the destination is of utmost importance. Generally, however, scientific resources tend to be highly restricted because of other essential components such as bus instruments, structure, and propellant. This paper proposes a design optimization method for interplanetary vehicles with solar electric propulsion, in an attempt to maximize the scientific capability in Solar System explorations. There are innumerable solutions for low-thrust interplanetary trajectories, on which the spacecraft system design problem strongly depends. An infinitely broad solution space must be evaluated extensively so as to determine the optimal system design, which is computationally extremely expensive. To achieve this, we develop a machine-learning model for low-thrust trajectories. A shape-based method is used in order to rapidly generate training trajectory data. The feasibility of the spacecraft components such as power management, communication, and thermal control is evaluated using the predicted trajectory. The developed method allows us to obtain an optimal system design solution that simultaneously maximizes the payload mass and the data downlink rate with the minimal time of flight.

    DOI: 10.2514/6.2025-0359

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MISC

  • Miniaturization perspectives of electrostatic propulsion for small spacecraft platforms Reviewed

    Suk Hyun Yeo, Hideaki Ogawa, Daniel Kahnfeld, Ralf Schneider

    Progress in Aerospace Sciences   2021.7

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    In-space electric propulsion technologies have advanced significantly in the last decade, while there has been increasing interest in economical propulsion systems with growing demand for commercial and scientific applications using small spacecraft platforms. Electrostatic propulsion, in particular, offers advantages over other propulsion systems in various aspects, including long operational lifetime, high specific impulse, and light weight. However, electric propulsion systems are subject to drawbacks such as system complexity and wall erosion, which represent obstacles toward miniaturization to be utilized for small spacecraft. New ideas are continuously explored to overcome such challenges and improve the performance. This article presents a comprehensive review of electrostatic propulsion systems, with particular focus on Gridded Ion Engine (GIE), Hall Effect Thruster (HET), and Cusped Field Thruster (CFT) systems, with respect to their operational principles, applications, and characteristics. State-of-the-art technologies and novel concepts are discussed including research efforts for miniaturization, along with the latest available data of their performance and features. While GIE and HET are mature and well understood, the power consumption of miniaturized thrusters is relatively high, leaving room for improvement toward practical application. CFT, on the other hand, features appreciable performance even in miniaturized form, offering promise to serve for small spacecraft platforms.

Works

  • Assistant Professor

    2022.10 - Present

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Committee Memberships

  • Asia-Pacific International Symposium on Aerospace Technology (APISAT)   Steering committee member   Foreign country

    2024.1 - 2024.12   

Other

  • Best paper award in APISAT (Asia-Pacific International Symposium on Aerospace Technology ) 2018

    2018.10

Research Projects

  • Development of an Eco-Friendly Advanced Plasma Electrothermal Thruster for Enhanced Spacecraft Maneuverability in Space Sustainment Missions.

    Grant number:JPMJSF2317  2024.10 - 2025.9

    JST Platform for All Regions of Kyushu & Okinawa for Startup-ecosystem(PARKS) 

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    Authorship:Principal investigator  Grant type:Competitive funding other than Grants-in-Aid for Scientific Research

Class subject

  • Aerospace Engineering I

Outline of Social Contribution and International Cooperation activities

  • International collaboration research in Cusped Field Thruster development (University of Greifswald, Germany)
    International collaboration research in Electrospray thruster development (KAIST, Republic of Korea)