本文選題：軸向滑動(dòng)支承　切入點(diǎn)：溝槽型織構(gòu)　出處：《潤(rùn)滑與密封》2017年09期 　論文類(lèi)型：期刊論文

【摘要】：在車(chē)輛旋轉(zhuǎn)軸向滑動(dòng)支承表面加工不同槽型微米級(jí)的溝槽,包括橢圓形槽、圓弧槽、三角形槽、梯形槽和矩形槽,利用流體流經(jīng)淺槽表面產(chǎn)生流體動(dòng)壓力來(lái)減小摩擦。在考慮空化和流體慣性影響下,通過(guò)數(shù)值求解基于質(zhì)量守恒邊界條件的不可壓縮定常Reynolds方程,分析不同槽型的結(jié)構(gòu)參數(shù)(槽數(shù)、槽寬比、徑向?qū)挾?和工況參數(shù)(轉(zhuǎn)速、槽深比)對(duì)潤(rùn)滑性能的影響。結(jié)果表明:研究的5種槽型的承載力由大到小依次為三角形、圓弧形、梯形、橢圓形和矩形;增加槽寬比、槽深比、徑向?qū)挾扔欣诮档蜐?rùn)滑油溫升,而增加槽深比則有利于降低空化率;研究的5種槽型中,矩形槽的潤(rùn)滑油溫升最低且潤(rùn)滑流量最大,梯形槽的空化率較小。
[Abstract]:Machining different grooves of micron size on the surfaces of rotating axial sliding supports of vehicles, including elliptical grooves, circular grooves, triangular grooves, trapezoidal grooves and rectangular grooves, In order to reduce friction, fluid flow through the surface of shallow groove is used to reduce friction. Under the influence of cavitation and fluid inertia, the incompressible steady Reynolds equation based on mass conservation boundary condition is solved numerically. The effects of structural parameters (number of slots, ratio of groove width, radial width) and operating conditions (rotation speed, groove depth ratio) on lubricating performance are analyzed. The results show that the bearing capacity of the five grooves studied is triangle, arc shape, and so on. Trapezoid, ellipse and rectangle; increasing the ratio of groove width, groove depth, radial width is beneficial to reduce the temperature rise of lubricating oil, while increasing the ratio of groove depth is helpful to reduce the cavitation rate. The temperature rise of lubricating oil in rectangular grooves is the lowest and the lubricating flow is the largest, and the cavitation rate of trapezoidal grooves is small.
【作者單位】： 河北工程大學(xué)機(jī)械與裝備工程學(xué)院;
【基金】：河北省自然科學(xué)基金項(xiàng)目(E2014402047)
【分類(lèi)號(hào)】：TH117.2
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本文編號(hào)：1632272