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Damping Prediction Technique of the Bolted Joint Structure Considering Pretension Force

Auteur(s):

Médium: article de revue
Langue(s): en 
Publié dans: The Open Civil Engineering Journal, , n. 1, v. 9
Page(s): 622-626
DOI: 10.2174/1874149501509010622
Abstrait:

At the initial phase of the mechanical product development, it is very important to effectively obtain the modal damping ratio of the bolted joint structure for accurately predicting dynamic response. The energy dissipation has been estimated using a finite element model incorporating the effect of pretension force of the bolted joint. First, the modal damping ratios of the first four modes are extracted by experimental method. Secondly, the lap joint finite element model with pretension force parameter is constructed and based on which, modal analysis of the structure is conducted. The modal shape scaling results are used as the boundary conditions of the finite element model and the energy dissipations and modal damping ratios of the lap joint under different pretension forces are calculated out. By comparing the numerical calculation result and the experimental result, the validation of the damping prediction approach proposed in this paper is proved.

Copyright: © 2016 Delin Sun and Ridong Liao
License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution 4.0 (CC-BY 4.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original.

  • Informations
    sur cette fiche
  • Reference-ID
    10175531
  • Publié(e) le:
    30.12.2018
  • Modifié(e) le:
    03.08.2019