Prof. Youngsu Cha Profile

Prof. Youngsu Cha

Professor at Korea Univ

SPIE Involvement:

Conference Program Committee | Author

Publications (20)

Proceedings Article | 9 May 2024 Presentation + Paper

Presentation + Paper

Multimodal motion of soft origami tripod using electrohydraulic actuator

Joohyeon Kang, Sohyun Kim, Youngsu Cha

Proceedings Volume 12948, 1294809 (2024) https://doi.org/10.1117/12.3010067

KEYWORDS: Actuators

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Proceedings Article | 9 May 2024 Presentation + Paper

Presentation + Paper

Biomimetic quadrupedal soft robot using origami cylinder actuator

Jinho Kim, Youngsu Cha

Proceedings Volume 12944, 1294405 (2024) https://doi.org/10.1117/12.3010069

KEYWORDS: Actuators, Gait analysis, Biomimetics

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Proceedings Article | 28 April 2023 Presentation + Paper

Presentation + Paper

Ultrasonic piezoelectric transducer design with concave surface

Chaegyu Lim, Youngsu Cha

Proceedings Volume 12483, 124830G (2023) https://doi.org/10.1117/12.2657014

KEYWORDS: Ultrasound transducers, Ultrasonics, Piezoelectric materials

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Proceedings Article | 18 April 2023 Presentation + Paper

Presentation + Paper

Object classification robot hand system using thermal conductivity

Heon Ick Park, Youngsu Cha

Proceedings Volume 12485, 124850A (2023) https://doi.org/10.1117/12.2657012

KEYWORDS: Sensors, Classification systems, Temperature sensors

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Proceedings Article | 22 March 2021 Presentation + Paper

Presentation + Paper

The role of cations on contactless actuation of perfluorinated ionomer membranes in salt solution

Alain Boldini, Youngsu Cha, Maurizio Porfiri

Proceedings Volume 11587, 1158710 (2021) https://doi.org/10.1117/12.2581437

KEYWORDS: Electrodes, Polymers, Metals, Electroactive materials, Composites

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Proceedings Article | 22 April 2020 Presentation + Paper

Presentation + Paper

Torsional loading analysis using cross-shaped piezoelectric sensor

Hojoon Kim, Myotaeg Lim, Youngsu Cha

Proceedings Volume 11376, 113760B (2020) https://doi.org/10.1117/12.2557467

KEYWORDS: Sensors, Mathematical modeling, Shape analysis, Smart materials

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Proceedings Article | 22 April 2020 Presentation + Paper

Presentation + Paper

Texture analysis using a piezoelectric actuator-sensor pair

Jaehoon Chung, Myotaeg Lim, Youngsu Cha

Proceedings Volume 11376, 113760T (2020) https://doi.org/10.1117/12.2557976

KEYWORDS: Sensors, Actuators, Neural networks, Classification systems

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Proceedings Article | 27 March 2019 Presentation + Paper

Presentation + Paper

Electrostatic actuation in ionic polymer-metal composites

Alain Boldini, Kevin Jose, Youngsu Cha, Maurizio Porfiri

Proceedings Volume 10969, 1096910 (2019) https://doi.org/10.1117/12.2514277

KEYWORDS: Electrodes, Actuators, Polymers, Composites, Image processing, Electroactive polymers

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Proceedings Article | 21 March 2019 Presentation + Paper

Presentation + Paper

Ring energy harvester using cylinder shape change

Yeunhee Kim, Jae-Bok Song, Youngsu Cha

Proceedings Volume 10967, 109671A (2019) https://doi.org/10.1117/12.2514003

KEYWORDS: Energy harvesting, Sensors

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Proceedings Article | 13 March 2019 Presentation + Paper

Presentation + Paper

Soft gripper actuated by electro-hydraulic force

Tongil Park, Youngsu Cha

Proceedings Volume 10966, 109661Q (2019) https://doi.org/10.1117/12.2514008

KEYWORDS: Actuators, Dielectrics, Robotics, Electroactive polymers

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Proceedings Article | 13 March 2019 Presentation + Paper

Presentation + Paper

Searching for clues about Maxwell stress in the back-relaxation of ionic polymer-metal composites

Alain Boldini, Maxwell Rosen, Youngsu Cha, Maurizio Porfiri

Proceedings Volume 10966, 109661K (2019) https://doi.org/10.1117/12.2514274

KEYWORDS: Electrodes, Ions, Polymers, Composites, Polarization, Interfaces, Computer simulations, Solids, Actuators

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Proceedings Article | 15 March 2018 Presentation + Paper

Presentation + Paper

Energy harvesting from torsions of patterned piezoelectrics

Youngsu Cha, Hangil You

Proceedings Volume 10595, 105950F (2018) https://doi.org/10.1117/12.2293452

KEYWORDS: Energy harvesting, Transducers, Composites

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Proceedings Article | 17 April 2017 Presentation + Paper

Presentation + Paper

A theoretical framework for the study of compression sensing in ionic polymer metal composites

Valentina Volpini, Lorenzo Bardella, Andrea Rodella, Youngsu Cha, Maurizio Porfiri

Proceedings Volume 10163, 101630M (2017) https://doi.org/10.1117/12.2257361

KEYWORDS: Ions, Sensing systems, Environmental sensing, Motion models, 3D modeling, Polymers, Metals, Composites, Electrodes, Sensors, Physics, Mechanical sensors, Electroactive materials, Artificial muscles, Modeling

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Proceedings Article | 11 April 2017 Presentation + Paper

Presentation + Paper

Energy harvesting from mouse click of robot finger using piezoelectrics

Youngsu Cha, Jin Hong, Jaemin Lee, Jung-Min Park, Keehoon Kim

Proceedings Volume 10164, 101641I (2017) https://doi.org/10.1117/12.2256343

KEYWORDS: Robotics, Motion models, Resistance, Ferroelectric polymers, Motion analysis, Transducers, Kinematics, Solids, MATLAB, Cameras

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Proceedings Article | 2 April 2015 Paper

Paper

Underwater energy harvesting from vibrations of annular ionic polymer metal composites

Youngsu Cha, Shervin Abdolhamidi, Maurizio Porfiri

Proceedings Volume 9431, 94310B (2015) https://doi.org/10.1117/12.2083648

KEYWORDS: Energy harvesting, Polymers, Metals, Composites, Electrodes, Resistance, Resistors, Bessel functions, Solids, Amplifiers

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Proceedings Article | 1 April 2015 Paper

Paper

A physics-based model for actuation and sensing of ionic polymer metal composites

Youngsu Cha, Maurizio Porfiri

Proceedings Volume 9430, 94300G (2015) https://doi.org/10.1117/12.2083646

KEYWORDS: Composites, Metals, Polymers, Electrodes, Ions, Polarization, Computing systems, Actuators, Interfaces, Physics

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Proceedings Article | 8 March 2014 Paper

Paper

Buckling of an ionic polymer metal composite shell under uniaxial compression

Linfeng Shen, Youngsu Cha, Adel Shams, Maurizio Porfiri

Proceedings Volume 9056, 90561X (2014) https://doi.org/10.1117/12.2044619

KEYWORDS: Polymers, Metals, Aluminum, Composites, Fabrication, Chemical analysis, Chemical reactions, Plating, Electrodes, Data acquisition

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Proceedings Article | 8 March 2014 Paper

Paper

Electromechanical sensing of ionic polymer metal composites

Youngsu Cha, Filippo Cellini, Maurizio Porfiri

Proceedings Volume 9056, 905619 (2014) https://doi.org/10.1117/12.2044620

KEYWORDS: Composites, Metals, Electrodes, Polymers, Resistance, Mathematical modeling, Capacitance, Circuit switching, Partial differential equations, Electroactive polymers

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Proceedings Article | 8 March 2014 Paper

Paper

Harvesting energy from a water flow through ionic polymer metal composites' buckling

Filippo Cellini, Youngsu Cha, Maurizio Porfiri

Proceedings Volume 9056, 90560Y (2014) https://doi.org/10.1117/12.2044621

KEYWORDS: Energy harvesting, Resistance, Resistors, Polymers, Metals, Composites, Solids, Electrodes, Neon, Additive manufacturing

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Proceedings Article | 9 April 2013 Paper

Paper

Charge dynamics of ionic polymer metal composites in response to electrical bias

Youngsu Cha, Maurizio Porfiri

Proceedings Volume 8687, 868721 (2013) https://doi.org/10.1117/12.2009062

KEYWORDS: Polymers, Composites, Metals, Electrodes, Circuit switching, Chemical elements, Particles, Ions, Physics, Electroactive polymers

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Showing 5 of 20 publications

Conference Committee Involvement (4)

Soft Mechatronics and Wearable Systems II

17 March 2025 | Vancouver, Canada

Soft Mechatronics and Wearable Systems

25 March 2024 | Long Beach, California, United States

Bioinspiration, Biomimetics, and Bioreplication XIV

25 March 2024 | Long Beach, California, United States

Nano-, Bio-, Info-Tech Sensors, and Wearable Systems 2023

13 March 2023 | Long Beach, California, United States

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