Establishment Method of Rheological Model of Ultra-high Shear Strain Rate Grease
A technology of rheological model and establishment method, which is applied in the direction of flow characteristics, flow characteristics, instruments, etc. of non-Newtonian fluids, can solve the problem that the rheological characteristics have no reference significance, and achieve high accuracy, great applicability, and convenient construction Effect
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[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0027] The establishment method of the rheological model of ultra-high shear strain rate lubricating grease of the present invention, described rheological model is
[0028] The calculation formulas of parameters a, n and b are as follows:
[0029] a=3.079×10 -9 P 0 1.2586 (η 0 U / ER) -0.7801
[0030] n=0.8542 (P 0 / E) 0.0558 (η 0 U / ER) -0.0533
[0031] b=1.5879×10 -19 P 0 2.0355 (η 0 U / ER) -1.5738
[0032] P 0 is the maximum Hertz contact stress, E is the equivalent elastic modulus, E 1 ,E 2 are the elastic modulus of the two contact parts, such as balls and discs, E=E 1 E. 2 / (E 1 +E 2 ), R is the equivalent radius, R 11 and R 2 are the radii of the two co...
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