發(fā)布時間：2018-01-17 02:00

  本文關(guān)鍵詞：二維粗糙面間滑動摩擦過程中平穩(wěn)性研究　出處：《機械設(shè)計與制造工程》2016年11期 　論文類型：期刊論文

  更多相關(guān)文章： 分形表面 平穩(wěn)性 黏著 滑動摩擦

【摘要】：基于現(xiàn)有的分形模型,考慮到黏著現(xiàn)象的普遍性,通過在界面引入黏著剪切強度并考慮材料斷裂,建立了考慮黏著、彈塑性變形影響的二維分形金屬粗糙面間的滑動摩擦模型,并運用有限元軟件進行數(shù)值求解。通過設(shè)置不同界面剪切強度及滑動速度參數(shù),研究了兩粗糙面間滑動過程中的平穩(wěn)性。對建立的二維雙粗糙彈塑性分形模型的實例進行分析,結(jié)果表明:當(dāng)界面剪切強度較小時,法向速度波動幅值增大;當(dāng)界面剪切強度增大到一定值后,法向速度波動幅值迅速的減小,使滑動較為平穩(wěn)�；瑒铀俣葘ζ椒�(wěn)性的影響較大,滑動速度越大,滑動過程中振動越劇烈。
[Abstract]:Based on the existing fractal model, considering the universality of adhesion phenomenon, the adhesion is considered by introducing adhesive shear strength into the interface and considering the fracture of the material. The sliding friction model of two-dimensional fractal metal rough surface affected by elastic-plastic deformation is numerically solved by using finite element software. Different interface shear strength and sliding velocity parameters are set up. The stability of the sliding process between two rough surfaces is studied. An example of two-dimensional double rough elastoplastic fractal model is analyzed. The results show that the amplitude of normal velocity fluctuation increases when the shear strength of interface is small. When the shear strength of the interface increases to a certain value, the amplitude of the normal velocity fluctuation decreases rapidly, which makes the slip more stable. The greater the sliding velocity, the more violent the vibration in the sliding process.
【作者單位】： 四川文理學(xué)院智能制造學(xué)院;
【基金】：四川文理學(xué)院特色培育項目(2015TP005Y)
【分類號】：TH117.1
【正文快照】： 摩擦磨損產(chǎn)生的根本原因在于接觸對受到接較準(zhǔn)確地模擬真實粗糙表面[7]。在滑動過程中,觸表面力的相互作用,產(chǎn)生一系列的變化,如黏著、摩擦磨損與力的變化都主要發(fā)生在摩擦副元件的形變、疲勞與犁溝等。這些相互作用的結(jié)果都與接表層,文中通過在界面引入黏著剪切強度,考慮材觸，

本文編號：1435776