The invention relates to a method for measuring the interfacial shear strength of a contact disc and flat plate of the device, which comprises the following steps: A disk, static, flat at speed u relative to the disk slide, slide roll ratio is 2; B, to supply the measured line contact area of lubricating oil, the line contact zone formation fluid dynamic pressure lubrication in the disc and plate between the applied load, the line contact maximum Hertzian contact pressure is greater than 0.4GPa, respectively; C detected two loading disc contact surface or flat on the contact surface friction coefficient, two on solving contact surface friction coefficient of linear equation group. Method and device of the invention, effect of the technique of lubricating oil pressure test has large, simple and compact structure, easy implementation, manufacturing cost and low use cost, easy measurement and the measurement accuracy is relatively high, and can simultaneously measure two interface shear strength parameters, and has remarkable practical value. The device of the invention can replace a measuring device of a high-pressure cavity and other measuring devices.
【技术实现步骤摘要】
本专利技术涉及的参考文献如下 Jacobson，B.O.，High-pressure chamber measurements.Proc.Instn.Mech.Engrs.Part JJ.Eng.Trib.，2006，Vol.220，199-206. Kleemola，J.and Lehtovaara，A.，An approach for determination oflubricant properties at elliptical elastohydrodynamic contacts using atwin-disc test device and a numerical traction model.Proc.Instn.Mech.Engrs.Part JJ.Eng.Trib.，2008，Vol.222，797-806. Workel，M.F.，Dowson，D.，Ehret，P.and Taylor，C.M.，Measurements of the coefficients of friction of different lubr...
【技术保护点】
一种圆盘与平板弹性接触下测量界面剪切强度的方法，其特征在于，包括以下步骤：Ａ、圆盘静止，平板以速度ｕ相对于圆盘作滑动，滑滚比为２，无量纲滚动速度ｕη↓［ａ］／（２Ｅ′Ｒ）应满足１．０Ｅ－１１≤ｕη↓［ａ］／（２Ｅ′Ｒ）≤１．０Ｅ－９，其中η↓［ａ］是大气压下润滑油粘度，Ｅ′是圆盘和平板的综合杨氏弹性模量，Ｒ是圆盘半径；Ｂ、往线接触区供应被测润滑油，使线接触区形成流体动压润滑，在圆盘和平板间施加载荷，使线接触最大赫兹接触压力大于０．４ＧＰａ，而使无量纲载荷ｗ／（Ｅ′Ｒ）＜２．５７４（ＨＲＤ／Ｅ′）↑［２］，其中，ｗ为载荷线密度即单位接触长度上的载荷，Ｅ′是圆盘和平板的综合杨氏...
【技术特征摘要】
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