Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Luboš SMOLÍK"'
Autor:
Novák, Jiří
Publikováno v:
Český lid, 2012 Jan 01. 99(2), 251-252.
Externí odkaz:
https://www.jstor.org/stable/42640484
Publikováno v:
Sensors, Vol 24, Iss 7, p 2056 (2024)
This study utilizes neural networks to detect and locate thermal anomalies in low-pressure steam turbines, some of which experienced a drop in efficiency. Standard approaches relying on expert knowledge or statistical methods struggled to identify th
Externí odkaz:
https://doaj.org/article/096b814276a6453cbd3cadb24e039d0f
Publikováno v:
Nonlinear Dynamics. 111:9957-9970
Rotating machinery supported on journal bearings is affected by forces due to rotating unbalance and pressure gradients in the oil film. The interaction of these forces can evoke nonlinear behaviour, including asynchronous motion and even chaos. This
Publikováno v:
Nonlinear Dynamics. 111:8155-8171
The paper focuses on local phenomena modelling in the ball-and-socket pivot of tilting pad journal bearings. It provides an in-depth analysis of the influence of nonlinear normal force and friction forces generated in the pivot on the dynamic behavio
Publikováno v:
Nonlinear Dynamics. 105:2133-2156
This work brings an overview of the nonlinear dynamics of four-segment tilting pad journal bearings (TPJB) in load-between-pads configuration supported on flexible pivots. We focus primarily on analysing the sub-synchronous motion of statically unloa
Autor:
Luboš SMOLÍK, Michal HAJŽMAN
Publikováno v:
Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, Vol 59, Iss 1, Pp 93-98 (2013)
The common sizes and weights of rotors, which can be found e.g. in the energy production industry, allow to employ a standard methodology of an experimental modal analysis. However, certain applications with rotors of small weights lead to the usage
Externí odkaz:
https://doaj.org/article/00753804cbcd419888fc1695c00eb837
Publikováno v:
TRANSACTIONS ON ELECTRICAL ENGINEERING. 5:1-7
The article deals with establishing of natural frequencies at the stator endwinding in stage of design of the machine (generator) and then measurement of the mode shapes (modal analysis on a real machine).
Autor:
Luboš Smolík, Jan Rendl, Milan Omasta, Miroslav Byrtus, Petr Šperka, Pavel Polach, Martin Hartl, Michal Hajžman
Publikováno v:
Journal of Sound and Vibration. 546:117454
Publikováno v:
Mechanical Systems and Signal Processing. 179:109365
Impact-induced anomalies such as travelling waves can be found in many devices or structures. This article provides an experimental method to localize a point of impact in three-dimensional structures using an array of redundant sensors. Concurrent m