Title

Development of Reversibly Deformable Three-Dimensional Soft Actuators for Fluid Control

Alternative Title

유체 제어를 위한 가역적으로 변형 가능한 3차원 소프트 액추에이터 개발

DGIST Authors

Janghun Ko ; Bong Hoon Kim ; Sukho Song

Advisor

김봉훈

Co-Advisor(s)

Sukho Song

Issued Date

2025

Awarded Date

2025-08-01

Type

Thesis

Description

Magnetic soft actuator, Hard magnetic composite, 3D deformation, Fluid control

Table Of Contents

Ⅰ. INTRODUCTION 1
Ⅱ. BACKGROUND 4
2.1 Classification of the magnetic soft actuator 4
2.2 Working principle of the hard magnetic soft actuator 6
Ⅲ. RESULTS AND DISCUSSION 9
3.1 Fabrication of the master mold 9
3.1.1 Actuator design: geometry and dimensions 9
3.1.2 3D printing of the master mold 12
3.1.3 Post-processing 12
3.2 Fabrication of the magnetic soft actuator 14
3.3 Magnetization 17
3.4 Properties of the magnetic soft actuator 20
3.4.1 Mechanical properties 20
3.4.2 Magnetic characterization 21
3.4.3 Magneto-mechanical properties 23
3.4.4 Actuation characteristics during rotational motion 26
3.5 Fluid visualization and analysis 29
3.5.1 Directional flow control in 2D mode 32
3.5.2 Local fluid mixing in 2D mode 35
3.5.3 Directional flow control in 3D mode 36
3.5.4 Fluid pumping in 3D mode 37
3.5.5 Kelvin-Helmholtz instability in 3D mode 38
Ⅳ. CONCLUSION 40
Ⅴ. REFERENCES 41

URI

https://scholar.dgist.ac.kr/handle/20.500.11750/59822
http://dgist.dcollection.net/common/orgView/200000889979

DOI

10.22677/THESIS.200000889979

Degree

Master

Department

Department of Robotics and Mechatronics Engineering

Publisher

DGIST

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