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
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DGUV Test, Prüf- und Zertifizierungsstelle, Nahrungsmittel und Verpackung, Fachbereich Nahrungsmittel

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Institut für Arbeitsschutz der DGUV (IFA) Prüf- und Zertifizierungsstelle im DGUV Test

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DIN 58620: 2007-02 DIN 58621: 2011-10 DIN 58647-7: 1997-12 ID136 > 140 + 3 more
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Deutsche Wind Guard Consulting

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DAkkS D-PL-18020-01-01 Varel, DE
IEC 61400-12 IEC 61400-12-1 IEC 61400-12-2 IEC 61400-12-3 IEC 61400-12-5 + 3 more
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Deutscher Wetterdienst Geschäftsbereich Technische Infrastruktur und Betrieb Abteilung Service und Logistik, Fachgruppe Kalibrierung

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DAkkS D-K-11170-01-00 Hamburg, DE
Railway brakes — conditions for homologa − Durchfluss von Flüssigkeiten − Strömungsgeschwindigkeit von Gasen − Widerstandsthermometer − Temperatur-Transmitter, Datenlogger + 3 more
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Deutsches Herzzentrum der Charité Akutlabor

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DAkkS D-ML-13068-01-00 Berlin, DE
ADP ASPI TRAP Amiodaron, Desethylamiodaron Mycophenolsäure + 3 more
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Deutsches Zentrum für Luft- und Raumfahrt Institut für Raumfahrtsysteme

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DAkkS D-PL-11223-02-01 Bremen, DE
DIN EN 60068-2-64 DIN EN 61373 ECSS-E-ST-10-03C DIN EN-60068-2-27 DIN EN-60068-2-6
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Diagenom

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Diehl Metering

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Klinkner & Partner GmbH Kalibrierlabor

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Staber & Kollegen

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DAkkS D-ML-13252-01-01 München, DE
Blutbild groß Thrombozyten Urinsediment Natrium Kalium + 3 more
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med. rer. nat. Nils Janzen Screening-Labor Hannover Laborärztliche Facharztpraxis

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DAkkS D-ML-19642-02-00 Ronnenberg, DE
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Drägerwerk AG & Co. KGaA Product Qualification Kalibrierlabor

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Druck * Negativer und positiver Überdruck -0,01 bar Positiver Überdruck p e > 0,015 bar + 3 more
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Duravit

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DAkkS D-PL-21217-01-00 Hornberg, DE
*6095991, BAG3 [OMIM *6038831 (-13910T>C) rs4988235 - PiM rs6647, PiZ rs28929474, rs17580 DIN EN 997 DIN EN 13407 + 3 more
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E & C Testlab GmbH (Engineering & Certification Testlab GmbH)

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DAkkS D-PL-19366-01-01 Trossingen, DE
IEC 61000-3-2: 2014 IEC 61000-3-3 IEC 61000-3-11: 2017 IEC 61000-3-12: 2011 IEC 61000-4-2: 2008 + 3 more
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E-T-A Elektrotechnische Apparate

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DAkkS D-PL-12144-01-01 Altdorf, DE
VDE 0468-2-1 VDE 0468-2-2 VDE 0468-2-6 DIN EN IEC 60068-2-11 DIN EN IEC 60068-2-13 + 3 more
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E. ZOLLER GmbH & Co. KG Einstell- und Messgeräte

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DAkkS D-K-18994-01-00 Pleidelsheim, DE
optische 0 mm Werkzeugeinstell- und / Messgeräte verwendete Abkürzungen:
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EDAG Engineering

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DIN EN 60068-2 ISO 16750-3 IEC 60512-6-2 IEC 60512-6-3 IEC 60512-6-4 + 3 more
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EDAG Engineering GmbH ATC Fulda

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DAkkS D-PL-11061-02-02 Petersberg, DE
DIN 40633-2 DIN 40633-3 DIN 53482 DIN 72551-100 DIN 72551-6 + 3 more
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EDAG Engineering GmbH Versuch Böblingen

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DAkkS D-PL-11061-01-03 Böblingen, DE
DIN EN IEC 60068-2-5 DIN EN 60068-2-14 DIN EN 60068-2-30 DIN EN IEC 60068-2-38 DIN EN 60068-2-53 + 3 more
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EDAG Engineering GmbH Versuch Ingolstadt

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DAkkS D-PL-11061-06-00 Ingolstadt, DE
DIN EN 60068-2-14 DIN EN 60068-2-30 DIN EN ISO 6270-2 IEC 60512-1-1 IEC 60512-2-1 + 3 more
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EMCCons RASEK

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DAkkS D-PL-12067-01-02 Ebermannstadt, DE
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
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EMCCons RASEK

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DAkkS D-K-12067-01-01 Unterleinleiter, DE
- Gleichspannung > 0,12 V Vorverstärker > 1,2 V > 12 V > 120 V + 3 more
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EP EHRLER PRÜFTECHNIK ENGINEERING

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DAkkS D-K-21444-01-01 Niederstetten, DE
Railway brake — anti-slide device (UIC 5 Railway brake — magnetic track brakes (U Railway brakes — conditions for homologa Railway brakes — disc brake pads (UIC 54 − Durchfluss von Gasen + 3 more
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ERGO Umweltinstitut

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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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