Wyniki wyszukiwania dla: STRING VIBRATIONS

• Application of Fast Cameras to String Vibrations Recording

  Publikacja

  • J. Kotus
  • P. Szczuko
  • M. Szczodrak
  • A. Czyżewski

  - Rok 2015

  A hardware and software solution for guitar string vibration measurement by fast cameras is described. Orthogonal setup for 3D image acquisition is proposed capable to capture several thousand image frames per second. Dedicated image processing algorithm was developed and described in the paper, aimed at tracking the movement of some selected points along the string. Fast and accurate tracking results provided a detailed information...

• Vibrations in Physical Systems

  Czasopisma

  ISSN: 0860-6897

• The reduction of vibrations in circular sawing machines

  Publikacja

  • K. Orłowski
  • P. Dudek

  - Annals of WULS, Forestry and Wood Technology - Rok 2017

  The presented in this paper the main objectives of the research were to explore vibrations signals of the main spindle system, the machine tool body and a circular saw to extract informative features for assessment of the designs of the panel saw Fx3 and its follower Fx550.Even though the main spindle of the new table sliding saw Fx550 has its rotational speeds larger about 20% in comparison to the Fx3, peak values of the vibrational...

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• JOURNAL OF SOUND AND VIBRATION

  Czasopisma

  ISSN: 0022-460X , eISSN: 1095-8568

• An Improved Method of Minimizing Tool Vibration during Boring Holes in Large-Size Structures

  Publikacja

  • K. J. Kaliński
  • M. Galewski
  • M. Mazur
  • N. Stawicka-Morawska

  - Materials - Rok 2021

  The paper presents a thoroughly modified method of solving the problem of vibration suppression when boring large-diameter holes in large-size workpieces. A new approach of adjusting the rotational speed of a boring tool is proposed which concerns the selection of the spindle speed in accordance with the results of the simulation of the cutting process. This streamlined method focuses on phenomenological aspects and involves the...

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• Road mortality of pond-breeding amphibians during spring migrations in the Mazurian Lakeland, NE Poland

  Publikacja

  • M. Brzeziński
  • G. Eliava
  • M. Żmihorski

  - EUROPEAN JOURNAL OF WILDLIFE RESEARCH - Rok 2012

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• Span's low damped vibrations and vibration's damping by modal disparity inducted by cable stays temporal addition

  Publikacja

  • K. Lipiński

  - Rok 2008

  W pracy przedstawiono problem obecności słabo tłumionych drgań przęseł mostów wraz z metodą ich aktywnego tłumienia. Badania przeprowadzono korzystając z analizy numerycznej. Analizowany mechanizm zamodelowano korzystając z metody elementów skończonych. W praco przedstawiono zwarty opis wykorzystanej metody. Następnie, zbudowano dwa alternatywne modele, różniące się liczbą odciągów usztywniających przęsło. Wyznaczono postaci i...

• THE INFLUENCE OF POLYMER STRIPS IN REDUCTION OF A STEEL GRANDSTAND VIBRATIONS

  Publikacja

  • N. Lasowicz
  • R. Jankowski

  - Rok 2014

  Grandstands are types of structures commonly used during sport events or music concerts. Dynamic loads generated by crowd movement may have significant influence on human perception as well as may lead to the destruction of a structure. Lighter and more slender structural steel members are more easily excitable by spectators. If the synchronized movement is tuned with the natural frequency of the affected part of the structure,...

• Experiment-aided virtual prototyping to minimize tool-workpiece vibration during boring of large-sized structures

  Publikacja

  • K. J. Kaliński
  • M. Galewski
  • M. Mazur
  • N. Stawicka-Morawska

  - Rok 2019

  The paper presents the author's method of solving the problems of vi-bration suppression during boring of large-sized workpieces by means of an in-novative method of adjusting the rotational speed of the boring bar. It consists in selecting the spindle speed in accordance with the results of the cutting process simulation. The method includes identification of the model of the finite element method of the boring bar. The Root Mean...

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• String Research Journal

  Czasopisma

  ISSN: 1948-4992