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

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. Here, inspired by rabbit corneas, a microcha...

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Main Authors: Bowen Zhang, Lei Jiang, Ruochen Fang
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Biomimetics
Subjects:
Online Access:https://www.mdpi.com/2313-7673/10/3/164
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author Bowen Zhang
Lei Jiang
Ruochen Fang
author_facet Bowen Zhang
Lei Jiang
Ruochen Fang
author_sort Bowen Zhang
collection DOAJ
description 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. Here, inspired by rabbit corneas, a microchannel nanofiber array composite structure superhydrophilic elastomer material was prepared to achieve rapid liquid spreading and optimize liquid distribution. Researchers have found that when the depth of the groove microchannel is 400 μm and the length of the nanofiber is 5000 nm, water rapidly spreads on the surface in only 430 ms. This reduces self-excited vibration caused by friction, thereby reducing squealing noise by 20 decibels (dB). This article proposes a novel and direct biomimetic squealing noise reduction strategy, which has great potential in solving friction vibration noise problems in industry and daily life, such as automotive wiper blades, engines, oil lubricated bearings, etc.
format Article
id doaj-art-5812e7b3d79c47f18d8c95d2402c6e6c
institution Kabale University
issn 2313-7673
language English
publishDate 2025-03-01
publisher MDPI AG
record_format Article
series Biomimetics
spelling doaj-art-5812e7b3d79c47f18d8c95d2402c6e6c2025-08-20T03:43:21ZengMDPI AGBiomimetics2313-76732025-03-0110316410.3390/biomimetics10030164Elastomer with Microchannel Nanofiber Array Inspired by Rabbit Cornea Achieves Rapid Liquid Spreading and Reduction of Frictional Vibration NoiseBowen Zhang0Lei Jiang1Ruochen Fang2CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, ChinaCAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, ChinaInternational Institute for Interdisciplinary and Frontiers, Beihang University, Beijing 100190, ChinaReducing 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. Here, inspired by rabbit corneas, a microchannel nanofiber array composite structure superhydrophilic elastomer material was prepared to achieve rapid liquid spreading and optimize liquid distribution. Researchers have found that when the depth of the groove microchannel is 400 μm and the length of the nanofiber is 5000 nm, water rapidly spreads on the surface in only 430 ms. This reduces self-excited vibration caused by friction, thereby reducing squealing noise by 20 decibels (dB). This article proposes a novel and direct biomimetic squealing noise reduction strategy, which has great potential in solving friction vibration noise problems in industry and daily life, such as automotive wiper blades, engines, oil lubricated bearings, etc.https://www.mdpi.com/2313-7673/10/3/164noise reductionfriction-induced self-excited vibrationcorneamicrochannelsnanofiber arrayssuperspreading
spellingShingle Bowen Zhang
Lei Jiang
Ruochen Fang
Elastomer with Microchannel Nanofiber Array Inspired by Rabbit Cornea Achieves Rapid Liquid Spreading and Reduction of Frictional Vibration Noise
Biomimetics
noise reduction
friction-induced self-excited vibration
cornea
microchannels
nanofiber arrays
superspreading
title Elastomer with Microchannel Nanofiber Array Inspired by Rabbit Cornea Achieves Rapid Liquid Spreading and Reduction of Frictional Vibration Noise
title_full Elastomer with Microchannel Nanofiber Array Inspired by Rabbit Cornea Achieves Rapid Liquid Spreading and Reduction of Frictional Vibration Noise
title_fullStr Elastomer with Microchannel Nanofiber Array Inspired by Rabbit Cornea Achieves Rapid Liquid Spreading and Reduction of Frictional Vibration Noise
title_full_unstemmed Elastomer with Microchannel Nanofiber Array Inspired by Rabbit Cornea Achieves Rapid Liquid Spreading and Reduction of Frictional Vibration Noise
title_short Elastomer with Microchannel Nanofiber Array Inspired by Rabbit Cornea Achieves Rapid Liquid Spreading and Reduction of Frictional Vibration Noise
title_sort elastomer with microchannel nanofiber array inspired by rabbit cornea achieves rapid liquid spreading and reduction of frictional vibration noise
topic noise reduction
friction-induced self-excited vibration
cornea
microchannels
nanofiber arrays
superspreading
url https://www.mdpi.com/2313-7673/10/3/164
work_keys_str_mv AT bowenzhang elastomerwithmicrochannelnanofiberarrayinspiredbyrabbitcorneaachievesrapidliquidspreadingandreductionoffrictionalvibrationnoise
AT leijiang elastomerwithmicrochannelnanofiberarrayinspiredbyrabbitcorneaachievesrapidliquidspreadingandreductionoffrictionalvibrationnoise
AT ruochenfang elastomerwithmicrochannelnanofiberarrayinspiredbyrabbitcorneaachievesrapidliquidspreadingandreductionoffrictionalvibrationnoise