Alternating pressure control system for hydraulic robots

S Kittisares, Y Hirota, H Nabae, G Endo, K Suzumori - Mechatronics, 2022 - Elsevier
Hydraulics is a promising technology for robots. However, traditional hydraulic
infrastructures are often large and power-inefficient, with large power sources that hinder …

Open-looped pressure and volume control of multi-degree-of-freedom hydraulic systems

S Kittisares, Y Hirota, H Nabae, K Suzumori - Mechatronics, 2023 - Elsevier
Although hydraulic systems are powerful, they are notorious for their power inefficiency and
the requirement of multiple components, such as a large hydraulic supply unit and control …

A multi-DOF soft microactuator integrated with flexible electro-rheological microvalves using an alternating pressure source

T Sudhawiyangkul, K Yoshida, SI Eom… - Smart Materials and …, 2021 - iopscience.iop.org
For advanced microrobots such as an in-pipe working microrobot with dexterous
micromanipulators, a novel multi-degree of freedom (DOF) soft microactuator integrated with …

Geometrical Parameters Investigation of a Zig‐Zag Soft Pneumatic Actuators

J Yoon, D Yun - Advanced Engineering Materials, 2024 - Wiley Online Library
Unlike conventional rigid robots, soft robots utilize soft materials that allow them to deform
based on their structure, enabling safe interaction with humans. Among various pneumatic …

Viscoelastic properties of electro-rheological fluids containing ion-conductive polyurethane particles under electric field

S Ishii, H Takahashi, Y Sakai - Smart Materials and Structures, 2024 - iopscience.iop.org
A non-hydrous electro-rheological fluid (ERF) containing polyurethane (PU) particles with
electrolytes and automotive dampers utilizing it have been developed. In this study, we …

Three-dimensional AC electroosmotic micropump with high power density

M Watanabe, K Yoshida, J Kim, SI Eom… - Journal of …, 2023 - iopscience.iop.org
This paper presents a novel three-dimensional alternating current electroosmosis (ACEO)
micropump with high power density. ACEO is a phenomenon to generate a flow of a liquid …

Numerical Simulation of Bending Stiffness Analysis for Spring Linkage Applied to In‐Pipe Robot

J Qiao, N Liu - Mathematical Problems in Engineering, 2020 - Wiley Online Library
Spring linkage can be applied to in‐pipe robots for connecting different modules together
and can make it pass through elbows more easily. However, its stiffness cannot be set to be …

APCS: A lightweight and efficient hydraulic system

S KITTISARES, Y HIROTA, H NABAE… - The Proceedings of …, 2022 - jstage.jst.go.jp
Hydraulic actuators have a much higher power density than their electromagnetic
counterparts. However, traditional hydraulic systems are powered using a centralized …

交流圧力源を用いた ER マイクロアクチュエータシステム

吉田和弘 - フルードパワーシステム, 2023 - jstage.jst.go.jp
東京工業大学科学技術創成研究院未来産業技術研究所〒 226-8503 横浜市緑区長津田町 4259-
R2-42 E-mail: yoshida@ pi. titech. ac. jp 1989 年東京工業大学大学院博士課程修了 …

[HENVISNING][C] Flexible ER microvalve (FERV)

K Yoshida, JW Kim - yoshida-www.pi.titech.ac.jp
Flexible ER microvalves (FERVs) have been proposed and developed. The FERV controls
ERF flow by changing its apparent viscosity due to the applied electric field. The FERV have …