Antti Kärkkäinen Dynamic Simulations of Rotors during Drop on Retainer Bearings Lappeenranta, 2007 91 p. Acta Universitatis Lappeenrantaensis 279 Diss. Lappeenranta University of Technology ISBN 978-952-214-444-7; ISBN 978-952-214-445-4 (PDF) ISSN 1456-4491 The active magnetic bearings have recently been intensively developed because of noncontact support having several advantages compared to c...

Timely and effective feature extraction is the key for fault diagnosis of rolling element bearing (REB). However, will become very difficult in early weak stage REB due to interference strong background noise. To solve above difficulty, a two-stage method proposed, which mainly combines mode decomposition (FMD) with blind deconvolution (BD) method. Firstly, based on impulsiveness cyclostationar...

The nonlocal means (NL-Means) method that has been widely used in the field of image processing in recent years effectively overcomes the limitations of the neighborhood filter and eliminates the artifact and edge problems caused by the traditional image denoising methods. Although NL-Means is very popular in the field of 2D image signal processing, it has not received enough attention in the f...