Search results for: EXPERIMENTAL MODAL ANALYSIS

• Updating Finite Element Model of a Wind Turbine Blade Section Using Experimental Modal Analysis Results

  Publication

  • M. Łuczak
  • S. Manzato
  • B. Peeters
  • K. Branner
  • P. Berring
  • M. Kahsin

  - SHOCK AND VIBRATION - Year 2014

  This paper presents selected results and aspects of themultidisciplinary and interdisciplinary research oriented for the experimental and numerical study of the structural dynamics of a bend-twist coupled full scale section of awind turbine blade structure.Themain goal of the conducted research is to validate finite elementmodel of themodified wind turbine blade section mounted in the flexible support structure accordingly to the...

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• Mode shapes of a beam and plate with defects, obtained by experimental modal analysis

  Open Research Data

  open access

  • M. Rucka
  • K. Wilde

  The DataSet contains the experimental results of the first mode shape for a beam and a plate.

• Experimental study on plate modal parameters

  Publication

  • M. Hirsz
  • K. Wilde

  - Year 2005

  Test doświadczalny jest częścią systemu diagnostycznego. Autorzy badają wpływ dodatkowej masy na parametry modalne wolno popartej stalowej płytyi. Artykół przedstawia technikę wyznaczania parametrów modalnych dla systemów monitorowania konstrukcji.The experimental test introduced in the paper is the part of the diagnostic system. The authors investigate the influence of the additional mass on modal parameters of simply supported...

• Modal analysis of a steel grandstand

  Publication

  • N. Lasowicz
  • R. Jankowski

  - Technology and Art - Year 2012

  Among the issues related to the idea of sustainable society is the safety of civil engineering structures devoted to satisfy different needs of people. One of the types of structures devoted to satisfy recreational needs are grandstands, which are used during sport events or music concerts. It is obligatory to consider interaction between structure and crowd load especially when the crowd movement involves rhythmic jumping, dancing,...

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• Finite Element model updating on experimental modal parameters

  Publication

  • M. Hirsz

  - Year 2008

• Modal Reduction and Analysis of Gyroscopic Systems

  Publication

  • C. Orlikowski
  • R. Hein

  - Solid State Phenomena - Year 2010

  The paper introduces the method of the modal reduction of systems that experience the Coriolis acceleration or gyroscopic effect component. In such cases corresponding system equations are non-self-adjoined. To solve the problem modal reduced model is built up for the system without Coriolis acceleration or gyroscopic effect terms. These phenomena are included by application of any lumping technique. Hence, the final reduced model...

• Modal analysis of cylindrical steel tanks

  Publication

  • D. Burkacki
  • R. Jankowski

  - Year 2011

  Cylindrical steel tanks are very popular structures used for storage of products of chemical and petroleum industries. Their safety and reliability is crucial because any failure could have serious consequences. The aim of present paper is to show the results of the first phase of investigation of seismic behaviour such structures. Modal analysis using Finite Element Method (FEM) for three models of real tanks used in Poland has...

• Improvement of damage detection methods based on experimental modal parameters

  Publication

  • M. Radzieński
  • M. Krawczuk
  • M. Palacz

  - MECHANICAL SYSTEMS AND SIGNAL PROCESSING - Year 2011

  W pracy przedstwiono sposoby porawy czułości metod detekcji uszkodzeń wykorzystujacych eksperyentalne parametry modalne konstrukcji. Wykazano, że zastosowanie zawansowanych technik obróbki sygnałów pomiarowych pozwala zdecydowanie poprwaić skutecznośc znanych z literatury metod.

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• Modal FEM Analysis of Ferrite Resonant Structures

  Publication

  • M. Warecka
  • G. Fotyga
  • P. Kowalczyk
  • R. Lech
  • M. Mrozowski
  • A. Pacewicz
  • B. Salski
  • J. Krupka

  - IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS - Year 2022

  The finite-element method (FEM) is applied for modal analysis of ferrite-loaded spherical resonators. To improve the efficiency of the numerical calculations, the body-of-revolution (BOR) technique is utilized. Due to the frequency-dependent ferrite permeability, FEM leads to a nonlinear eigenvalue problem that is challenging to solve. To this end, Beyn’s method is proposed. The effectiveness of the proposed approach is confirmed...

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• Diagnosis of the Vilnius Cathedral Tower by modal analysis

  Publication

  • A. Tomaszewska
  • A. Jaras

  - Year 2004

  Praca dotyczy wstępnych badań diagnostycznych dzwonnicy katedralnej w Wilnie. Analiza oparta jest na pomiarach drgań obiektu, wykonanych podczas wymuszeń losowych (ruch uliczny, wiatr etc.) oraz podczas bicia dzwonów. Na ich podstawie określono kilka pierwszych częstości drgań swobodnych wieży. Zaobserwowano znaczne wzmocnienie amplitudy drgań z pierwszą częstością własną w wynikach pomiarów wykonywanych przy biciu dzwonów. Wskazuje...