本文選題：高速角接觸球軸承 + 潤(rùn)滑油　； 參考：《軸承》2017年11期

【摘要】：在4109,4106和4050航空潤(rùn)滑油油膜拖動(dòng)特性試驗(yàn)基礎(chǔ)上,給出了3種潤(rùn)滑油油膜拖動(dòng)系數(shù)計(jì)算公式,并建立了高速角接觸球軸承非線性動(dòng)力學(xué)微分方程組,采用預(yù)估-校正的GSTIFF變步長(zhǎng)積分算法對(duì)其動(dòng)力學(xué)微分方程組進(jìn)行求解。研究了3種航空潤(rùn)滑油對(duì)高速角接觸球軸承保持架運(yùn)動(dòng)平穩(wěn)性的影響,結(jié)果表明:對(duì)于這3種航空潤(rùn)滑油,過(guò)小或過(guò)大的軸承軸向載荷都不利于保持架運(yùn)動(dòng)平穩(wěn)性,且隨著軸向載荷的增加,保持架質(zhì)心軌跡由混亂到單圓渦動(dòng)再到多圓渦動(dòng);當(dāng)軸承承受1 000 N的軸向載荷時(shí),低溫工況下優(yōu)選4109潤(rùn)滑油,高溫工況下優(yōu)選4106潤(rùn)滑油;當(dāng)軸承潤(rùn)滑油溫度為130℃時(shí),軸承不適合承受過(guò)小的軸向載荷,在重載的工況下優(yōu)選4106潤(rùn)滑油,在輕載的工況下優(yōu)選4050潤(rùn)滑油,4050潤(rùn)滑油在輕載的情況下較4109潤(rùn)滑油適用范圍廣。
[Abstract]:On the basis of the experiments on the film drag characteristics of 4109 and 4050 aviation lubricating oils, three formulas for calculating the drag coefficients of lubricating oil film are given, and the nonlinear dynamic differential equations of high speed angular contact ball bearings are established. A predictor-corrector GSTIFF variable step integral algorithm is used to solve the dynamic differential equations. The effect of three kinds of aviation lubricating oils on the stability of the cage motion of high speed angular contact ball bearings is studied. The results show that the axial loads of the bearings too small or too large are not conducive to the stability of the cage motion for these three kinds of aviation lubricating oils. With the increase of axial load, the cages' centroid trajectory changes from chaos to single circle vortex to multi-circle vortex, when bearing bears 1 000 N axial load, 4109 lubricating oil is selected at low temperature condition and 4106 lubricating oil is selected under high temperature condition. When the temperature of bearing lubricating oil is 130 鈩，

本文編號(hào)：1897619