@ARTICLE{Lindstedt_Paweł_Model_2011, author={Lindstedt, Paweł and Grądzki, Rafał}, volume={vol. 58}, number={No 3}, journal={Archive of Mechanical Engineering}, pages={305-318}, howpublished={online}, year={2011}, publisher={Polish Academy of Sciences, Committee on Machine Building}, abstract={This paper presents the bases of a new method of monitoring technical condition of turbomachine blades during their operation. The method utilizes diagnostic models such as a quotient of amplitude amplification and a phase shift of diagnostic signal y(t) which is a result of blade operation as well as a signal x(t) of blade environment while a blade tip approaches a sensor, amplitude amplification and phase shift of these signals while the blade tip moves away from the sensor. The adopted diagnostic models indirectly take into account the existing environment of a blade, represented by the signal x(t), without the need to measure it. Thus, the model is sensitive to the changes in technical condition of blades and practically intensive to a change in environment. The suggested method may prove very important in diagnostics of rotor blades during turbomachines operation (compressors, turbines etc.).}, type={Artykuły / Articles}, title={Model for blade diagnosis in a working rotor machine employing the method of virtual elimination of stochastic environment}, URL={http://www.czasopisma.pan.pl/Content/84496/PDF/03_paper.pdf}, doi={10.2478/v10180-011-0020-8}, keywords={diagnostics, rotor blades, amplification, phase shift}, }