Annotation
The pressure dependence of the coefficients of reflection of waves of the first and second harmonics from the surface of a pressed contact carries information on the statistical characteristics of the microprotrusion sizes. A model is proposed that represents the contact as an ensemble of springs of variable lengths. A method based on this model is suggested for processing experimental acoustic data. An estimate of the characteristic size is obtained for a surface roughness element, which corresponds to the surface finish class.
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
0.V. Rudenko, Ching Ang Wu
Department of Acoustics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Department of Acoustics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia