Results 61 to 70 of about 7,392 (262)

Elastomer with Microchannel Nanofiber Array Inspired by Rabbit Cornea Achieves Rapid Liquid Spreading and Reduction of Frictional Vibration Noise

open access: yesBiomimetics
Reducing friction-induced squeal noise is a common issue in daily life and industrial production, particularly for elastomers. However, adjusting structure and wettability in wet environments to solve the friction-induced squeal noise remains a challenge.
Bowen Zhang, Lei Jiang, Ruochen Fang
doaj   +1 more source

Modelling and control of friction-induced vibrations [PDF]

open access: yesMathematical and Computer Modelling of Dynamical Systems, 2005
Friction-induced vibrations in technical applications are usually unwanted, as they create noise, diminish accuracy and increase wear. This article intends to give insight into basic excitation mechanisms of friction-induced vibrations and to show possible ways of avoidance.
openaire   +1 more source

Ultrathin Hydrogel Membranes Inspired by Soap Films Enable Physiologically Relevant Breathing Lung Models

open access: yesAdvanced Materials, EarlyView.
A soap‐film inspired strategy enables the fabrication of ultrathin yet robust GelMA‐PAAm membranes for breathing lung culture. The hydrogel membrane supports long‐term cyclic deformation under air‐liquid interface conditions, enabling physiologically relevant breathing motions of engineered lung tissue culture. ABSTRACT Breathing continuously stretches
Yunji Lee   +9 more
wiley   +1 more source

Analysis of Friction-Induced Vibration Behavior of Train Brake Systems Considering the Effect of Environmental Temperature

open access: yesLubricants
Train brake systems are characterized by strong friction and open-system features during the service process. Low environmental temperatures significantly affect the contact interface and the attrition characteristics of the braking frictional couple ...
Xiaocui Wang   +4 more
doaj   +1 more source

Application of Spiral Ring Dampers in Vibration Reduction of Aeroengine Bevel Gears

open access: yesJixie chuandong, 2023
In view of the problem that the vibration stress of the axle driven bevel gear of an aeroengine exceeds the permissible stress, a spiral ring friction damper is designed for the bevel gear.
Wang Yanfeng   +3 more
doaj  

Some examples of friction-induced vibrations and instabilities [PDF]

open access: yes, 2002
Some examples of friction-induced vibrations and instabilities of elastic structures in unilateral contact are discussed in this paper. The case of an elastic solid in contact with a moving (rigid or elastic) obstacle is considered. The onset of instability and the transition to a dynamic regime is the underlying centre of interest of the discussion.
Moirot, Franck, Nguyen, Quoc-Son
openaire   +2 more sources

TESCLA: A Fully Soft Electromagnetic Linear Actuator With Continuous Bending Enabled by Liquid‐Metal Solenoids

open access: yesAdvanced Materials, EarlyView.
TESCLA (tubular electromagnetic soft conformal linear actuator) combines liquid‐metal solenoids and compliant magnetic composites to achieve large‐stroke bidirectional actuation with continuous bending. Integrated inductance‐based self‐sensing enables proprioceptive position estimation without external sensors, providing a versatile platform for soft ...
Yeongjin Choi   +3 more
wiley   +1 more source

Application of Spiral Ring Damper for Aeroengine Bevel Gears

open access: yesJixie chuandong, 2023
In view of the problem that the vibration stress of the axle driven bevel gear of an aeroengine exceeds the permissible stress, a spiral ring friction damper is designed for the bevel gear.
Wang Yanfeng   +3 more
doaj  

Nonlinear Friction-Induced Vibration of a Slider–Belt System

open access: yesJournal of Vibration and Acoustics, 2016
A mass–spring–damper slider excited into vibration in a plane by a moving rigid belt through friction is a major paradigm of friction-induced vibration. This paradigm has two aspects that can be improved: (1) the contact stiffness at the slider–belt interface is often assumed to be linear and (2) this contact is usually assumed to be maintained during ...
Li, Zilin   +2 more
openaire   +1 more source

Aggregation‐Controlled Vat Dyeing of Meta‐Aramid Fibers: Mechanistic Insights and Suppression of Surface Dye Deposition

open access: yesAdvanced Materials Interfaces, EarlyView.
Supramolecular aggregation governs the interfacial adsorption, diffusion, and fixation of anthraquinone‐based vat dyes in meta‐aramid fibers. By correlating reduction chemistry, aggregate formation, and fiber microstructure, a multiscale mechanism for aggregation‐controlled dyeing is established, providing an effective strategy to suppress surface dye ...
Jisiyuan Qin   +8 more
wiley   +1 more source

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