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Identification of Vibration Causes Based on Spectrograms During the Straightening Process

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU109389" target="_blank" >RIV/00216305:26210/14:PU109389 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Identification of Vibration Causes Based on Spectrograms During the Straightening Process

  • Original language description

    This paper deals with dynamic analysis of straightening machine loading during straightening process. During it, a crooked bar passing through the machine and the rollers and holders are subjected to the dynamic loadings. The rollers moment amplitudes depend, among others, on straightening speed, size of the bar curvature, bars diameter, and on friction between the bar and the rollers. The loading is time-varying and knowledge of the frequencies of the moment is important; it can be used for verification of the numerical simulation or for the straightening machine design. Machine operation close to resonance state can cause excessive vibration which can subsequently cause noise and adversely affect the life of the machine and also straightening accuracy. This paper is aimed to analyze frequency spectra of the moments, which are obtained from the computational simulation and find the possible causes of vibration. Although, the straightening process is complex, it was possible to identif

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JR - Other machinery industry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2014

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    ENGINEERING MECHANICS 2014

  • ISBN

    978-80-214-4871-1

  • ISSN

  • e-ISSN

  • Number of pages

    762

  • Pages from-to

    368-371

  • Publisher name

    Neuveden

  • Place of publication

    Neuveden

  • Event location

    Svratka

  • Event date

    May 12, 2014

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article