... transversely isotropic materials elastohydrodynamic lubrication FFT Hamrock–Dowson equations Many researchers have worked on the contact mechanics of homogeneous materials, for example, Johnson [ 1 ] systematically introduced the contact responses of isotropic materials. Gradually, anisotropic...

..., multiple inhomogeneities, and functionally graded coatings are analyzed to reveal the influence of inhomogeneities on film thickness, pressure distribution, and subsurface stresses. elastohydrodynamic lubrication (EHL) inhomogeneous materials Equivalent inclusion method FFT Power...

... ,” ASME J. Tribol. 0742-4787 , 120 , pp. 310 – 318 . Gao , J. , Lee , S. C. , Ai , X. , and Nixon , H. , 2000 , “ An FFT-Based Transient Flash Temperature Model for General Three-Dimensional Rough Surface Contacts ,” ASME J. Tribol. 0742-4787 10.1115/1.555395 , 122 , pp...

...) is employed first to obtain the influence coefficients (ICs) from the frequency response function (FRF). The subsequent calculation of elastic deformation is performed using the efficient algorithm of discrete convolution and fast Fourier transform (DC-FFT). The coating EHL model is verified by the comparison...

... as Fig. 6 ; the code description based on this process is given in the Appendix. Resolving process of elastic-plastic contact The FFT is applied in the calculation of surface deflection to increase the speed of computation, which was introduced in Sec. 2 . In the calculation...