Force display system using particle-type electrorheological fluids

Sakaguchi, Masamichi; Furusho, Junji

doi:10.1109/robot.1998.680731

Cited by 36 publications

(21 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Continuing this work, Taylor and his group at the University of Hull, UK, developed and tested experimentally a 5 × 5 ERF tactile array [52,53]. Furusho and his group at Osaka University in Japan developed an ERF-based planar force-feedback manipulator system that interacts with a virtual environment [54,55]. This system is actuated by low-inertia motors equipped with an ER clutch.…”

Section: Applicationsmentioning

confidence: 99%

Development of Advanced Actuators Using Shape Memory Alloys and Electrorheological Fluids

Mavroidis

2002

Research in Nondestructive Evaluation

132

View full text Add to dashboard Cite

Abstract. Actuators are used to perform a variety of functions in almost every type of electromechanical system, "smart" device, and instrument. Increasingly, in many applications, actuators need to achieve reduced size, mass, power consumption, and cost. Examples of industries that demand novel, miniature, and powerful actuators are medicine, biotechnology, information technology, space, manufacturing, entertainment, military, and micro-and nanotechnology. Conventional actuators such as DC motors, pneumatic motors, and hydraulic motors are energy-wasting, largevolume, and heavy-mass actuation systems. Novel design methodologies, materials, and paradigms are currently needed in order to develop such lightweight and powerful actuation systems. In this paper we present the development of two novel, compact, and powerful smart material-based advanced actuators. The first motor is a shape memory alloy (SMA) bundle actuator, and the second is a hybrid concept based on electrorheological fluids (ERFs) and electromagnetic components. A detailed review of the state of the art in SMA-and ERF-based actuators is also presented.

show abstract

Section: Applicationsmentioning

confidence: 99%

Development of Advanced Actuators Using Shape Memory Alloys and Electrorheological Fluids

Mavroidis

2002

Research in Nondestructive Evaluation

132

View full text Add to dashboard Cite

show abstract

“…Conventionally, ER fluids refer to the particle-type ER fluids which show Bingham characteristic. Many papers on the application of ER fluids and the design of a damper have been published [8]- [12]. Reference [9] presents a friction-type ER damper, and applies it to dissipate vibratory energy of robots.…”

Section: Introductionmentioning

confidence: 99%

“…Reference [12] develops a torque-controllable ER clutch with high/inertia ratio, and shows that the ER clutch is suitable for a force display system. On the other hand, a homogeneous-type ER fluid which have been developed using macromolecular liquid crystal, exhibits the characteristics of Newtonian fluid.…”

Section: Introductionmentioning

confidence: 99%

Active vibration control of a pneumatic vibration isolator embedded with the electrorheological fluid

Wang

Shih

2002

Proceedings of the JFPS International Symposium on Fluid Power

View full text Add to dashboard Cite

show abstract

“…Daniel P. Ferris [6,7]는 발바 닥에 풋 스위치를 설치하고 능동제어 명령신호를 생성함으 로써, 보행 시 족저굴곡 토크를 발생시키는 동력 족관절 보 조기를 개발하였다. Furusho [8] 등은 MR 유체를 이용한 반 능동제어 단하지 장비를 개발하였다. 개발과정에서 가속도 센서를 이용하여 보행 상태를 검출하고 유각기와 입각기에 서 유압 댐퍼의 점성을 변화시킴으로써 보행이 개선되는 것을 검증하였다.…”

unclassified

Development of Knee Ankle Foot Orthosis for Gait Rehabilitation Training using Plantaflexion and Knee Extension Torque

Kim¹,

Kim²,

Heo³

et al. 2010

Journal of Institute of Control, Robotics and Systems

View full text Add to dashboard Cite

Abstract:The purpose of this study was to test the effectiveness of a prototype KAFO (Knee-Ankle-Foot Orthosis) powered by two artificial pneumatic muscles during walking. We had previously built powered AFO (Ankle-Foot Orthosis) and KO (Knee Orthosis) and used it effectively in studies on assistance of plantaflexion and knee extension motion. Extending the previous study to a KAFO presented additional challenges related to the assistance of gait motion for rehabilitation training. Five healthy males were performed gait motion on treadmill wearing KAFO equipped with artificial pneumatic muscles to power ankle plantaflexion and knee extension. Subjects walked on treadmill at 1.5 km/h under four conditions without extensive practice: 1) without wearing KAFO, 2) wearing KAFO with artificial muscles turned off, 3) wearing KAFO powered only in plantaflexion under feedforward control, and 4) wearing KAFO powered both in plantaflexion and knee extension under feedforward control. We collected surface electromyography, foot pressure and kinematics of ankle and knee joint. The experimental result showed that a muscular strength of wearing KAFO powered plnatarfexion and knee extension under feedforward control was measured to be lower due to pneumatic assistance and foot pressure of wearing KAFO powered plnatarfexion and knee extension under feedforward control was measured to be greater due to power assistance. In the result of motion analysis, the ankle angle of powered KAFO in terminal stance phase was found a peak value toward plantaflexion and there were difference of maximum knee flexion range among condition 2, 3 and 4 in mid-swing phase. The current orthosis design provided plantaflexion torque of ankle jonit in terminal stance phase and knee extension torque of knee joint in mid-swing phase.Keywords: knee-ankle-foot orthosis, plantaflexion torque, knee extension torque, gait rehabilitation

show abstract

Force display system using particle-type electrorheological fluids

Cited by 36 publications

References 5 publications

Development of Advanced Actuators Using Shape Memory Alloys and Electrorheological Fluids

Development of Advanced Actuators Using Shape Memory Alloys and Electrorheological Fluids

Active vibration control of a pneumatic vibration isolator embedded with the electrorheological fluid

Development of Knee Ankle Foot Orthosis for Gait Rehabilitation Training using Plantaflexion and Knee Extension Torque

Contact Info

Product

Resources

About