A method to analyze scattering from general periodic screens using Fast Fourier Transform and Conjugate Gradient method

1991 ◽  
pp. 145-160
Author(s):  
M. F. Cátedra ◽  
Rafael P. Torres ◽  
Jesús G. Cuevas
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Conjugate Gradient Method ◽  
Conjugate Gradient ◽  
Gradient Method

Contact Calculation for Rolling Bearings in Quarter-Spaces

2015 ◽  
Vol 642 ◽  
pp. 333-336
Author(s):  
Zhi Jian Wang ◽  
Xue Jin Shen ◽  
Xiao Yang Chen
Keyword(s):  
Fourier Transform ◽  
Free Surface ◽  
Fast Fourier Transform ◽  
Contact Pressure ◽  
Conjugate Gradient ◽  
Gradient Method ◽  
Analytical Method ◽  
Elastic Contact ◽  
Rolling Bearings ◽  
Modified Conjugate Gradient Method

An elastic contact solution considering the effect of free surface and code are developed using Hetenyi’s approach and semi-analytical method. Discrete convolution-fast Fourier transform (DC-FFT) is used to calculate elastic deformation. The modified conjugate gradient method is applied to solve surface contact pressure. By comparing with other literatures’ results, the program made by authors is proved valid.

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