A 2-DOF MR actuator joystick for virtual reality applications

Li, Weihua; Liu, B; Kosasih, P.B.; Zhang, Xianzhou

doi:10.1016/j.sna.2007.03.015

Cited by 87 publications

(53 citation statements)

References 14 publications

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“…The above rheological properties of MR grease endow it with outstanding prospects in the application of MR damper, 1-4 clutch 5-7 and actuator. [8][9][10] Until now, in order to promote the practical application of MR grease, researchers have carried out a series of studies on the rheological properties of MR grease, i.e. viscosity, yield stress, storage modulus and loss modulus.…”

Section: Introductionmentioning

confidence: 99%

Normal force of lithium-based magnetorheological grease under quasi-static shear with large deformation

2019

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Section: Introductionmentioning

confidence: 99%

Normal force of lithium-based magnetorheological grease under quasi-static shear with large deformation

2019

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“…The general dimensions of the MR brakes are: D=25mm, L=15mm, the maximum force at the finger tips can reach up to 17N. Li W H et al [4] have researched on a 2-DOF haptic joystick featuring 2 rotary MR brakes. The general dimensions of the MR brakes are: D=156mm, L=21mm, the moment of the brake can be changed from 0.5Nm to 6Nm.…”

Section: Introductionmentioning

confidence: 99%

Development of a New Magnetorheological Actuator for Force Feedback Application

Tri¹,

Cuong²,

Quốc³

2017

IJEEE

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In this study, a new configuration of Bidirectional Magneto-Rheological Actuator (BMRA) is proposed, optimally designed and experimentally evaluated. The BMRA has two discs rotating in opposite directions at the same speed. The two discs are placed inside a housing which is connected to the haptic devices. The BMRA has two coils placed directly on each side of the housing. The coils are separated with the Magnetorheological Fluid (MRF) by a thin wall of the housing. With this configuration, the inner face of the side housing, which is interfaced with the MRF, is continuous. This allows the MRF duct being manufactured more easily and accurately. After the introduction of the proposed configuration, braking torque of the proposed BMRA is analyzed based on Bingham-plastic rheological model of the MRF. Optimization of the proposed BMRA is then performed considering maximum torque and mass of the actuator. Based on the optimal result, detailed design of the BMRA is conducted and a prototype of the BMRA is manufactured. Experimental works on the prototype is then performed and performance characteristics of the proposed BMRA are figured out. 

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“…[10]proposed a new MR brake structure using the waveform boundary of a rotary disk generating more resistance torque compared with the conventional MR brake. Furthermore, the MR brake system has been implemented in other applications, such as joysticks, prosthetic knees and artificial muscle manipulators [11]. Through simulation, previous researchers have implemented the sliding mode controller using the MR brake to evaluate optimal wheel slip that shows fast anti-lock braking [12].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Shaft Speed Control Using a Magnetorheological Brake

Abdullah¹,

Zainordin²,

Hudha³

2015

Int. J. Automot. Mech. Eng.

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This paper presents a performance evaluation of a shaft speed control using a magnetorheological brake (MR brake). The MR brake consists of a rotating disk that is immersed in magnetorheological fluid (MR fluid). The rheology of the fluid changes under the influence of a magnetic field. Two controllers are proposed in this work: onoff and proportional-integral-derivative (PID). The on-off controller acts as the benchmark controller through computer simulation and experimental testing. Load tests have been considered in order to evaluate the controller's effectiveness in braking the wheel shaft at 50, 100 and 150 N in varying speeds of 300, 500, 700 and 900 rpm. The results obtained in the simulation and the experiment are compared and discussed. The PID controller shows good performance compared to the on-off control where the error percentages of the PID control, which are below 10%, are lower than the on-off controller.

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A 2-DOF MR actuator joystick for virtual reality applications

Cited by 87 publications

References 14 publications

Normal force of lithium-based magnetorheological grease under quasi-static shear with large deformation

Normal force of lithium-based magnetorheological grease under quasi-static shear with large deformation

Development of a New Magnetorheological Actuator for Force Feedback Application

Performance Evaluation of Shaft Speed Control Using a Magnetorheological Brake

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