NF EN ISO 10846-3

NF EN ISO 10846-3

October 2002
Standard Current

Acoustics and vibration - Laboratory measurement of vibro-acoustic transfer properties of resilient elements - Part 3 : indirect method for determination of the dynamic stiffness of resilient supports for translatory motion

This part of ISO 10846 specifies a method for determining the dynamic transfer stiffness for translations of resilient supports, under specific preload. The method concerns the laboratory measurements of vibration transmissibility and is called the indirect method. This method is applicable to test elements with parallel flanges.Measurements for translations normal and transverse to the flanges are covered in this part of ISO 10846. Annex A provides guidance for the measurement of transfer stiffnesses which include rotatory components.The method covers the frequency range from f2 up to f3. The values of f2 and f3 are determined by the test set-up and the isolator under test. The data obtained according to the method specified in this part of ISO 10846 can be used forproduct information provided by manufacturers and suppliers,information during product development,quality control, andcalculation of the transfer of vibration through isolators.

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National standards and national normative documents

Publication date

October 2002

Number of pages

47 p.

Reference

NF EN ISO 10846-3

ICS Codes

17.140.01   Acoustic measurements and noise abatement in general

Classification index

S31-030-3

Print number

1 - 07/12/2002

International kinship

ISO 10846-3:2002

European kinship

EN ISO 10846-3:2002
Sumary
Acoustics and vibration - Laboratory measurement of vibro-acoustic transfer properties of resilient elements - Part 3 : indirect method for determination of the dynamic stiffness of resilient supports for translatory motion

This part of ISO 10846 specifies a method for determining the dynamic transfer stiffness for translations of resilient supports, under specific preload. The method concerns the laboratory measurements of vibration transmissibility and is called the indirect method. This method is applicable to test elements with parallel flanges.

Measurements for translations normal and transverse to the flanges are covered in this part of ISO 10846. Annex A provides guidance for the measurement of transfer stiffnesses which include rotatory components.

The method covers the frequency range from f2 up to f3. The values of f2 and f3 are determined by the test set-up and the isolator under test.

The data obtained according to the method specified in this part of ISO 10846 can be used for

  • product information provided by manufacturers and suppliers,
  • information during product development,
  • quality control, and
  • calculation of the transfer of vibration through isolators.
Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    2
  • 3 Termes et définitions
    3
  • 4 Principe
    5
  • 5 Appareillage
    6
  • 5.1 Translations normales
    6
  • 5.2 Translations transversales
    10
  • 5.3 Suppression des vibrations parasites
    11
  • 6 Critères pour l'adéquation du dispositif d'essai
    15
  • 6.1 Bande de fréquences
    15
  • 6.2 Détermination de la fréquence limite supérieuref3
    16
  • 6.3 Transmission latérale
    20
  • 6.4 Vibrations parasites à l'entrée
    20
  • 6.5 Accéléromètres
    20
  • 6.6 Capteurs de force
    21
  • 6.7 Sommation des signaux
    21
  • 6.8 Analyseurs
    21
  • 7 Mode opératoire
    22
  • 7.1 Installation des éprouvettes
    22
  • 7.2 Montage et connexion des accéléromètres
    22
  • 7.3 Montage et connexions de l'excitateur de vibrations
    22
  • 7.4 Signal source
    22
  • 7.5 Mesurages
    23
  • 7.6 Essai de linéarité
    23
  • 8 Evaluation des résultats d'essais
    24
  • 8.1 Calcul de la raideur dynamique de transfert
    24
  • 8.2 Valeurs moyennes par bandes d'un tiers d'octave de la raideur dynamique de transfert
    25
  • 8.3 Présentation des résultats par bandes d'un tiers d'octave
    25
  • 8.4 Présentation des données de l'analyse à bande étroite
    26
  • 9 Informations à consigner
    27
  • 10 Rapport d'essai
    27
  • Annexe A (informative) Raideur de transfert pour les composants à vibration rotationnelle
    29
  • Annexe B (informative) Influence de la symétrie sur la matrice de raideur de transfert
    37
  • Annexe C (informative) Courbe charge statique-déformation
    38
  • Bibliographie
    39
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