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轴承润滑膜厚度超声检测法的可检测范围研究
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东莞市高等院校科研机构科技项目经费资助(2011108102034)


Measurable Range of Ultrasonic Measurement Method for Bearing Lubricant Film Thickness
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    摘要:

    对于轴承润滑膜厚度的超声检测,分析了影响刚度模型检测法可检测范围与检测准确性的因素,对比了两种不同轴承材料时刚度模型法可检测厚度范围的变化情况,并进行了实验检测与分析。结果表明:检测轴承与轴颈的介质材料对刚度模型法可检测范围影响较大,不同材料时刚度模型法具有不同的可检测厚度范围。以水润滑轴承材料为例,轴承材料为不锈钢时,刚度模型法最大可检测厚度约为10 μm,并且亚微米级厚度的检测分辨率高于微米级;当轴承材料为石墨时,刚度模型法更适合于2~50 μm范围内润滑膜厚度的检测。

    Abstract:

    For the ultrasonic measurement of the bearing lubricant film thickness, the measurable range and accuracy of spring model method were analysed. The measurable range of spring model method for the two different bearing materials were compared and experimental measured. The results show that the materials of bearing and journal influence the measurable range of ultrasonic method greatly. The measurable range of spring model method is different when measuring the different bearing materials. Take the waterlubricated bearings for example, when the bearing material is stainless steel, the maximum measurable thickness is about 10 μm and the measurement resolution of submicron scale thickness is higher than micron scale. When the bearing material is graphite, spring model method is more suitable for the measurement of lubricant film thickness in the range of 2~50 μm.

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于剑锋,徐新平,丁度坤.轴承润滑膜厚度超声检测法的可检测范围研究[J].机床与液压,2016,44(11):128-131.
. Measurable Range of Ultrasonic Measurement Method for Bearing Lubricant Film Thickness[J]. Machine Tool & Hydraulics,2016,44(11):128-131

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  • 在线发布日期: 2016-07-07
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