Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Lech Murawski"'
Influence of Added Water Mass on Ship Structures Vibration Parameters in Virtual and Real Conditions
Autor:
Do Van Doan, Lech Murawski, Adam Szeleziński, Tomasz Muchowski, Marcin Kluczyk, Adam Muc, Krzysztof Jasiński, Marek Chodnicki
Publikováno v:
Scientific Journal of Gdynia Maritime University, Iss 128 (2023)
Modeling of ship structures in a virtual environment is now standard practice. Unfortunately, many engineers forget about considering the influence of added water on the frequency values and the amplitude of natural vibrations. The article presents t
Externí odkaz:
https://doaj.org/article/72275cfc69674b009cbbf94f5d6a3454
Publikováno v:
Scientific Journal of Gdynia Maritime University, Iss 128 (2023)
This paper presents computer simulation results of kinematic and dynamic of two and three – wheeled mobile robot, conducted in the Matlab&Simulink packet environment. Models of kinematics and dynamics were developed with the aid of Jacobians and La
Externí odkaz:
https://doaj.org/article/81d15e0e3c4f4d2ca30397a976497767
Autor:
Krzysztof Jasiński, Lech Murawski, Marcin Kluczyk, Adam Muc, Adam Szeleziński, Tomasz Muchowski, Marek Chodnicki
Publikováno v:
Advances in Sciences and Technology, Vol 17, Iss 1, Pp 274-289 (2023)
The paper presents a synthetic characterization of modern methods of manufacturing or regenerating machine elements. Considered methods are machining and additive methods, in particular 3D printing in the FDM/FFF technique. For the study, the authors
Externí odkaz:
https://doaj.org/article/651dcb7f01dd42f5aaf2ca1d6618ab28
Comparison of Calculating Algorithms for Logarithmic Decrements Applied to Welded Joints Assessments
Autor:
Adam Szeleziński, Adam Muc, Lech Murawski, Tomasz Muchowski, Marcin Kluczyk, Krzysztof Jasiński, Romana Antczak-Jarząbska
Publikováno v:
Scientific Journal of Gdynia Maritime University, Iss 124 (2022)
There are numerous non-destructive methods in welded joints investigation, but the most promising, especially in applications with steady monitoring of the structure, is the vibro-diagnostic approach. In the course of the research work, the responses
Externí odkaz:
https://doaj.org/article/e738d2f0c57e43dc90b73b88cce4915a
Publikováno v:
Brodogradnja, Vol 69, Iss 3, Pp 43-59 (2018)
The paper presents two methods of crack detection in ship hulls. The methods are dedicated for structural health monitoring (SHM) of responsible welded joints. The system will be based on vibrodiagnostic - signals will be measured by piezoelectric ac
Externí odkaz:
https://doaj.org/article/8f9438e8b8cb4effaeb4f51bb695f96f
Publikováno v:
Sensors, Vol 21, Iss 3, p 895 (2021)
The paper presents the measurement process and test results for six thin-walled plates with different dynamic characteristics caused by different defects of welded joints. The tests were carried out using non-destructive testing (NDT). The authors ma
Externí odkaz:
https://doaj.org/article/5ee341018c8c4d6aa068879d875c78e6
Autor:
Lech Murawski
Publikováno v:
Brodogradnja, Vol 67, Iss 4, Pp 17-29 (2016)
The paper presents analysis of displacement of a crankshaft axis caused by temperature of marine, slow-speed main engine. Information of thermal displacement of a power transmission system axis is significant during a shaft line alignment and a crank
Externí odkaz:
https://doaj.org/article/f656cee6f3fe449bbcdb2288e62f190b
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 9, p 662 (2020)
Failures of marine propulsion components or systems can lead to serious consequences for a vessel, cargo and the people onboard a ship. These consequences can be financial losses, delay in delivery time or a threat to safety of the people onboard. Th
Externí odkaz:
https://doaj.org/article/47b9266f85c849fca1cf3bfbbc26b1e9
Publikováno v:
Przegląd Spawalnictwa, Vol 89, Iss 12 (2017)
In continuous monitoring systems of welded joints of thin- walled structures, a vibrodiagnostic method is the most promising. Its most important advantage is that it is effective and offers the greatest real-time research capabilities. It is used in
Externí odkaz:
https://doaj.org/article/d05357d763924e558fd048c4e01d4dae
Publikováno v:
Journal of KONBiN. 52:135-142
The article shows the results of the preparatory steps taken to create the artificial intelligence used in the automatic recognition of defects in ship thin-walled structures. The above steps are used to create a university private cloud and a comput
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::949daec0dbae9bae0e047eddb2aa3983
https://doi.org/10.2478/jok-2022-0045
https://doi.org/10.2478/jok-2022-0045