Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Paweł, Lindstedt"'
Publikováno v:
Shock and Vibration, Vol 2018 (2018)
In this work, an innovative diagnosis method of rotor blades is presented. A measurement signal of blade tip displacement is divided into two observation zones, in which two peaks of an additional template signal are introduced. Cross-correlation and
Externí odkaz:
https://doaj.org/article/831d568d22c342aa95e21803e4b97fb6
Autor:
Hieronim Karbowiak, Jerzy Kotkowski, Jerzy Perczyński, Jarosław Spychała, Edward Rokicki, Paweł Lindstedt
Publikováno v:
Journal of KONBiN, Vol 51, Iss 2, Pp 63-78 (2021)
The aim of the study is to propose a diagnostics method based on blade’s vibration model in frequency domain. Amplitude spectrum A(ω) and phase spectrum φ(ω) have been experimentally identified which define transfer function G(jω) = P(ω) + jQ(
Publikováno v:
Journal of KONBiN, Vol 49, Iss 4, Pp 363-381 (2019)
Proposed method of leakage identification uses a parametric model in the form of signals phase shift (φ). Signals from the test stand will be used: r1, r2 - signals from the corrective elements connected to the tested pipeline, pressure signals x, m
Theory and Practice of Decision Making in Regulation, Diagnostics and Reliability of Machines provides a guide to decision-making in the areas of regulation, diagnostics and reliability of machines. Outlining the theoretical foundations that support
Publikováno v:
2020 International Conference Mechatronic Systems and Materials (MSM).
In the process of gas pipeline operation, one of the most important activities is to identify the gas leakage. The most difficult is to locate and estimate particularly small outflows. The proposed method uses a model in the form of a difference of p
Publikováno v:
2020 International Conference Mechatronic Systems and Materials (MSM).
In the process of diagnosing of machines, due to their universality and efficiency, vibroacoustic methods become more important. The basic signals of these methods are: time courses, amplitude and phase spectra. Time courses and amplitude spectra are
Publikováno v:
Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference.
Publikováno v:
Shock and Vibration, Vol 2018 (2018)
In this work, an innovative diagnosis method of rotor blades is presented. A measurement signal of blade tip displacement is divided into two observation zones, in which two peaks of an additional template signal are introduced. Cross-correlation and
Publikováno v:
Journal of KONBiN, Vol 44, Iss 1, Pp 159-175 (2017)
An important problem in the operation of gas pipelines is the identification of accidental gas leakage from the damaged pipeline. It is the hardest when the leakage is small. A disadvantage of prior methods is that with their use is only possible to
Publikováno v:
Journal of KONBiN, Vol 44, Iss 1, Pp 389-412 (2017)
The paper presents the basis of a new method for monitoring the technical condition of rotating blades during their operation. Utilizing the measurement of blade tip instantaneous speed under subsequent sensors, enables direct determination of the bl