Search results for: VIBRATION BASED METHODS

• Damage detection in turbine wind blades by vibration based methods

  Publication

  • Ł. Doliński
  • M. Krawczuk

  - Year 2009

  The paper describes results of numerical simulation for damage localization in the composite coat of a wind turbine blade usingmodal parameters and a modern damage detection method (wavelet transform).

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• THE VIBRATION BASED DIAGNOSTICS OF SHIP PROPULSION SYSTEMS

  Publication

  • Z. Korczewski
  • J. Rudnicki

  - Year 2015

  The article has been worked out on the basis of the report devoted to the conducted diagnostic investigations of the ship main propulsion unit’s mechanical system. Gdansk University of Technology has been ordered with such investigations by the repair Shipyard carrying out the ship’s overhaul. Diagnostic tests involved measurements and analyses of the vibration signals generated in selected constructional kinematic pairs of the...

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• Vibration based damage localization in non-homogeneous structures

  Publication

  • A. Tomaszewska

  - Year 2005

  Przedmiotem badań jest identyfikacja lokalnych uszkodzeń w konstrukcjach budowlanych. Przedstawione są trzy metody bazujące na teorii drgań. Są to metody badające: częstości własne, podatność i krzywizny postaci drgań układu. Skuteczność metod pokazana jest na przykładach symulacji komputerowych, wykonanych dla belki swobodnie podpartej, wspornikowej oraz podwieszonej kładki dla pieszych. Dodatkowo zaprezentowane są wyniki badań...

• Vibration Diagnostics of Rolling Mills Based on Nonlinear Effects in Dynamics

  Publication

  • P. Krot
  • V. Korennoy

  - Bulletin of the National Technical University «KhPI» Series: Dynamics and Strength of Machines - Year 2016

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• Spatiotemporal random field models in vibration-based diagnosis of structures.

  Publication

  • H. Walukiewicz

  - Year 2004

  W pracy przedstawiono nowe podejscie do diagnostyki dynamicznejkonstrukcji w zakresie modelowania stochastycznego.Glownymzalozeniem jest losowosc parametrow konstrukcji(wlasnoscimaterialowe,geometryczne i warunki brzegowe}.Wlasnosci te samodelowane jako czasoprzestrzenne pola losowe drugiego rzedu.Zdefiniowano stochastyczne indeksy uszkodzenia konstrukcji.

• Vibration-Based Investigation of a Historic Bell Tower to Understand the Occurrence of Damage

  Publication

  • A. Tomaszewska
  • M. Drozdowska
  • C. K. Szymczak

  - International Journal of Architectural Heritage - Year 2022

  ABSTRACT The paper presents a survey of the historic Arch-cathedral bell tower in Vilnius induced by the appearance of cracks in the structure after a new bell system installation. An attempt is undertaken to identify the reason for the crack occurrence and to check a possible crack influence on global structural behaviour. The research is based on dynamic measurements made in the tower during ambient vibrations and during vibrations...

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• A mechatronic design based on desired solutions for vibration surveillance of mechanical systems

  Publication

  • K. J. Kaliński

  - Year 2007

  Celem pracy jest pokazanie zamierzonych rozwiązań, których włączenie może stanowić bazę nowych projektów mechatronicznych. Rozwiązania te dotyczą zmodyfikowanej metody nadzorowania drgań za pomocą sterowania modalnego przy energetycznym wskaźniku jakości, nadzorowania drgań za pomocą zmiennej prędkości obrotowej wrzeciona, a także - dopasowania prędkości obrotowej do optymalnego kąta przesunięcia fazowego. Uzyskane rezultaty oraz...

• A study of cavitation erosion resistance of an ion nitrided titanium alloy by means of the vibration and rotating disk methods

  Publication

  • V. Safonov
  • A. Zykova
  • J. Steller
  • M. Szkodo
  • G. Gajowiec
  • J. Chmiel
  • A. Varhoshkov

  - Journal of Physics : Conference Series - Year 2024

  In this work, a comparative analysis of the cavitation erosion resistance of the Ti– 6.7Al–2.5Mo–1.8Cr–0.5Fe–0.25Si alloy (known as brand VT3-1) before and after lowtemperature ion nitriding is carried out. Two test methods were applied, using vibrative (ASTM G-32) and rotating disk rigs, respectively. The kinetic dependences of the erosive destruction of samples of titanium alloy VT3-1 in the initial state, after ion nitriding...

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• Free Vibration of Flexomagnetic Nanostructured Tubes Based on Stress-driven Nonlocal Elasticity

  Publication

  • M. Malikan
  • V. Eremeev

  - Year 2020

  A framework for the flexomagneticity influence is here considered extending the studies about this aspect on the small scale actuators. The developed model accommodates and composes linear Lagrangian strains, Euler-Bernoulli beam approach as well as an extended case of Hamilton’s principle. The nanostructured tube should subsume and incorporate size effect; however, for the sake of avoiding the staggering costs of experiments,...

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• Application of continuous wavelet transform in vibration based damage detection method for beams and plates

  Publication

  • M. Rucka
  • K. Wilde

  - Journal of Sound and Vibration - Year 2006

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