Results 41 to 50 of about 1,012,480 (279)

Design and Trajectory Tracking Control of a Magnetorheological Prosthetic Knee Joint

open access: yesApplied Sciences, 2021
This paper developed a new magnetorheological (MR) prosthetic knee joint using an MR damper as the brake. According to the gait data of healthy people walking on flat ground, the structure of a MR prosthetic knee joint was expounded in detail, and its ...
Qiang Zuo   +4 more
doaj   +1 more source

Time-delay dynamics of the MR damper–cable system with one-to-one internal resonances

open access: yes, 2021
In this study, we investigate the nonlinear resonant response of a magnetorheological (MR) damper–stay cable system with time delay, and the one-to-one internal resonance is considered. Based on Hamilton’s principle, the motion equations of the MR damper–
Lenci S.   +7 more
core   +1 more source

Semi-Active Scissors-Seat Suspension With Magneto-Rheological Damper

open access: yesFrontiers in Materials, 2020
A cab seat suspension with a magneto-rheological (MR) fluid damper is introduced in this paper. A unified-format model for the MR damper is proposed to describe the dynamic characteristics of the MR damper.
Hongtao Zhu   +4 more
doaj   +1 more source

Fuzzy Sliding Mode Control of Vehicle Magnetorheological Semi-Active Air Suspension

open access: yesApplied Sciences, 2021
In order to reduce vehicle vibration during driving conditions, a fuzzy sliding mode control strategy (FSMC) for semi-active air suspension based on the magnetorheological (MR) damper is proposed.
Gang Li   +3 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Magnetic Hysteresis Compensation Control of a Magnetorheological Damper

open access: yesFrontiers in Materials, 2019
The hysteresis non-linearity of a magnetorheological (MR) fluid damper is one of the main reasons to restrict it to be widely used in shock buffering fields. This research aims to reduce or eliminate the effect of the magnetic hysteresis of the MR damper.
Zhaochun Li   +3 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Research on Semi-Active Vibration Control of Pipeline Based on Magneto-Rheological Damper

open access: yesApplied Sciences, 2020
This paper proposes a scheme to control the low-frequency vibration of pipelines by using magneto-rheological (MR) vibration reduction technology. The state equation and the transfer function of the pipeline system are established, and its stability and ...
Hui Ji   +4 more
doaj   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang   +5 more
wiley   +1 more source

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

open access: yes, 2022
Hepatology, EarlyView.
Robert J. Fontana   +6 more
wiley   +1 more source

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