ISO 7626-5

Experimental Modal Analysis Using Impact Excitation

This test method characterises the dynamic properties of structures through experimental modal analysis using impact hammer excitation. The method measures natural frequencies, damping ratios, and mode shapes by striking the structure and recording the resulting vibration response. It is widely used in aerospace, automotive, civil engineering, and mechanical equipment development to validate structural designs and identify potential vibration issues. Accreditation ensures proper instrumentation calibration, correct measurement methodology, and reliable data interpretation for safety-critical applications.

What it measures

  • Natural frequencies (modal frequencies)
  • Damping ratios (modal damping)
  • Mode shapes (displacement patterns)
  • Frequency response functions (FRF)
  • Coherence and data quality metrics
🇩🇪 DIN EN ISO 7626-1 🇬🇧 BS EN ISO 7626-1 🇫🇷 NF EN ISO 7626-1 🇮🇹 UNI EN ISO 7626-1 🇪🇸 UNE EN ISO 7626-1 🇳🇱 NEN EN ISO 7626-1 🇩🇪 DIN EN ISO 7626-2 🇬🇧 BS EN ISO 7626-2 🇫🇷 NF EN ISO 7626-2 🇮🇹 UNI EN ISO 7626-2 🇪🇸 UNE EN ISO 7626-2 🇳🇱 NEN EN ISO 7626-2
1,591 Accredited labs
17 Countries

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VEGA Environmental Consultants

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UKAS 1634 Whitley Bay, GB
(HSG 248) – 2021 ASB/10 based on HSG 248 (PCM) based on HSG 248 ASB/6 based on HSG 248 BS EN ISO 14644-1:2015 + 3 more
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VERIFICACIÓN Y CALIBRACIÓN

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ENAC LC10.251 Hospitalet de Llobregat, ES
CEM ME009
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VHT Institut für Leichtbau Trockenbau Holzbau

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DAkkS D-PL-19465-01-00 Darmstadt, DE
Myopathie, Nemaline (TyP1, 3-10: ASTM E 23-18 ASTM D 1322 Toxizität UGT1A1-Gen rs3064744, rs414832 DIN EN 1789 + 3 more
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VIBRATESTING, S.L. (Unipersonal)

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ENAC LC10.179 Pontevedra, ES
5 a 18 mm/s (Valor pico) (frecuencias en 5 a 12 mm/s (RMS) (frecuencias entre 8 H
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VIRLAB

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ENAC LE131 Asteasu, ES
IEC 60068-2-6 UNE-EN 60068-2-6 UNE-EN 60068-2-27 IEC 60068-2-27 UNE-EN 60068-2-57 + 3 more
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VITESS

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COFRAC 1-5871 Dolomieu, FR
IEC 60529: 1989 IEC 60068-2-2 IEC 60068-2-30 IEC 60068-2-1 DIN EN 60529 + 3 more
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VSL

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RvA K999 Delft, NL
HCS LF 1 1 HCS LF 2 1 HCS LF 1 3 HCS LF 12 HCS LF 22 + 3 more
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VWR International

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UKAS 0593 Lutterworth, GB
TEMPERATURE parameters and ranges) indicators or recorders WEIGHING INSTRUMENTS
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Vantify

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UKAS 7892 Stoke Prior, GB
Appendix 5 of HSG 227 (2004) (HSG 264, 2012)
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VdS Schadenverhütung GmbH Prüflaboratorien

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DAkkS D-PL-11149-01-01 Köln, DE
DIN EN 61466-1 DIN EN 61466-2 DIN 14678 DIN EN 54-2/A1 DIN EN 543 + 3 more
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Vectoflow

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DAkkS D-K-21643-02-00 Gilching, DE
am Standort Vectoflow Windtunnel A, Frie Strömungsgeschwindigkeit von Gasen 15 m/s bis > 38 m/s
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Versuchs- und Lehranstalt für Brauerei in Berlin (VLB) e. V.

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DAkkS D-PL-14173-01-03 Berlin, DE
DIN EN ISO 7458 DIN EN ISO 7459 DIN EN ISO 8106 DIN EN 29008 DIN EN 29009 + 3 more
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Vibtec GmbH Engineering and Testing

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DAkkS D-PL-17716-01-00 Zuzenhausen, DE
VDE 0468-2-2 IEC 60068-2-2 VDE 0468-2-6 IEC 60068-2-6 DIN EN 60068-2-14 + 3 more
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Vincentius-Diakonissen-Kliniken gemeinnützige AG Zentrallabor

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DAkkS D-ML-13393-01-00 Karlsruhe, DE
Blutbild, kleines (Erythrozyten, Leukozy Erythrozyten Leukozyten Retikulozyten Thrombozyten + 3 more
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Vine Consultant Services

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UKAS 10213 Bishops Stortford, GB
(HSG 264:2012) 5 of HSG 227 (2004))
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Vintec Laboratories

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UKAS 1249 Garston, GB
(HSG 248) – 2021 (PCM) based on HSG 248 P052 based on HSG 248
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Vistec Electron Beam

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DAkkS D-K-18737-01-01 Jena, DE
− Permanentes Laboratorium Positionen und Abstände gleichgerichteter Kanten positionen von Strukturen (Hartschichtmasken) + 3 more
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Vitesco Technologies GmbH Qualification Laboratory Schwalbach

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DAkkS D-PL-21928-02-00 Schwalbach, DE
VDE 0468-2-1 IEC 60068-2-1 VDE 0468-2-2 IEC 60068-2-2 DIN EN IEC 60068-2-11 + 3 more
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Vitis Lab Genova di Liberti Stefano

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ACCREDIA 00962 Palermo, IT
IEC 60512-17-1 ISO 712-1
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Volke Entwicklungsring SE

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DAkkS D-PL-20870-01-01 Wolfsburg, DE
DIN 72781-2 DIN EN 60068-2-53 DIN EN 60068-2-64 DIN EN-60068-2-27 DIN EN-60068-2-6 + 3 more
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Voltavision

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DAkkS D-PL-20464-01-01 Bochum, DE
IEC 62660-1 DIN EN-60068-2-1 ISO 12405-4: 2018 DIN EN 60068-2-14 IEC 60068-2-14 + 3 more
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W H Stephens

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UKAS 7855 Belfast, GB
(HSG 264, 2012)
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WENZEL Metrology

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DAkkS D-K-17723-01-00 Wiesthal, DE
Koordinatenmessgeräte von <7000 mm under-Edge, UK INCA3D, Software von Inspect 3D, Cholet, F + 3 more
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WESTINGHOUSE NUCLEAR SPAIN, S.A. (Unipersonal)

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ENAC LE1474 San Sebastián de los Reyes, ES
UNE 73109 IEC 60780 (1998) UNE 73109 (2001) ISO 28218 ISO 27048
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WIKA Alexander Wiegand SE &

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DAkkS D-K-15105-01-00 Klingenberg, DE
Positiver und −1 bar bis −0,03 bar Positiver und negativer (ein- oder mehrgängige > −0,03 bar bis > 0,15 bar bis + 3 more
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Industries

Aerospace and aviation Automotive and rail vehicles Civil engineering and structures Mechanical equipment manufacturing Wind energy systems

Related Standards

  • ISO 7626-1 Vibration and shock — experimental modal analysis — Part 1: fundamentals and overview
  • ISO 7626-2 Vibration and shock — experimental modal analysis — Part 2: instrumentation for impact excitation
  • ISO 9614-1 Acoustics — determination of sound power levels of noise sources using sound intensity — Part 1: measurement at discrete points

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