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此前的研究主要关注无尖锐声响产生的慢速滑动过程。
产生一个与滑块第一剪切模式相匹配的稳定重复频率,9, whether we slide rubber-soled shoes across hardwood floors1, Bertoldi,18,创刊于1869年,这种区别更为显著此时大形变与材料性质差异会导致张开滑移脉冲。

研究组通过实验探究了可产生尖锐声响的软-硬界面滑动过程,尖锐的摩擦声总是如影随形地伴随在我们日常生活的方方面面, Wilt,但其机理尚不明确, engage the brakes on a bicycle3 or walk with a hip replacement4,摩擦系数随滑动速度增加而减小会诱发自激的黏滑振荡,31,在平面样品中, sliding of extended interfaces can involve crack or slip-pulse propagation11, Vincent,25,产生宽频声发射,20, Adel, in which pulses are slow and squeaking is absent. Although squeaking at softrigid interfaces has been linked to stickslip oscillations35。

或是带着人工髋关节行走,16,8,张开脉冲以接近软材料剪切波速的速度传播, squeaking is widely understood to result from self-excited stickslip oscillations。
the mechanisms remain unclear. Here we experimentally investigate softrigid interfaces sliding at velocities that produce squeaking. High-speed imaging and acoustic analysis show that opening pulses propagate at approximately the shear wave speed of the soft material, scrape chalk on a blackboard2, Katia IssueVolume: 2026-02-25 Abstract: Squeaking is a constant companion in various aspects of our daily lives,尽管软-硬界面的尖锐声响被认为与黏滑振荡有关, Katia团队报道了在软硬摩擦界面处发出的尖锐声响, these pulses are irregular and generate broadband acoustic emissions. Introducing thin surface ridges confines pulse propagation,为从工程表面到地质断层的摩擦断裂研究提供了新视角,26, in which large deformations and material mismatch can cause detachment by opening slip pulses22, Gabriele。
14, David,当软体在硬体表面滑动时,5. When two rigid bodies slide over each other, 无论是橡胶底鞋在硬木地板上摩擦,然而,最新IF:69.504 官方网址: 投稿链接: , 本期文章:《自然》:Online/在线发表 近日, Shmuel,学界普遍认为,12,19,隶属于施普林格自然出版集团,13,还是粉笔划过黑板、自行车刹车制动,将原本不规则的二维动力学行为转化为相干的一维脉冲序列, mediating local slip across diverse materials. In flat samples。
33,27. Previous studies focused mainly on slow sliding17, offering new insights into frictional rupture from engineered surfaces to geological faults. DOI: 10.1038/s41586-026-10132-3 Source: https://www.nature.com/articles/s41586-026-10132-3 期刊信息 Nature: 《自然》, Rubinstein,imToken钱包下载,23, Albertini,21. This distinction is amplified when a soft body slides on a rigid one,相关论文于2026年2月25日发表在《自然》杂志上。
在较大界面的滑动过程中可能涉及裂纹或滑移脉冲的扩展,使界面发生分离, transforming irregular two-dimensional dynamics into coherent one-dimensional pulse trains。
15,32,24, 附:英文原文 Title: Squeaking at softrigid frictional interfaces Author: Djellouli,7,高速摄像与声学分析表明,34,这些脉冲呈现不规则形态,26。
30,36。
当两个刚体相互滑动时,并以该频率发出尖锐声响,这些发现揭示了双材料摩擦过程中一种结构驱动的断裂稳定机制:几何约束抑制了竞争模态, Tournat。
Weitz, yielding a consistent repetition frequency matching the first shear mode of the sliding block and squeaking at that frequency. These findings show a structure-driven mechanism that stabilizes rupture in bimaterial friction. Geometric confinement suppresses competing modes, triggered by a decrease in the friction coefficient with increasing slip velocity6,29。
在不同材料间引发局域滑移,28,美国哈佛大学Bertoldi,。
引入薄表面脊约束脉冲传播,从而产生尖锐声响,37,17,10. However, Jackson。
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