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
1,817 Accredited labs
19 Countries

Showing 951–961 of 961 labs

mib Medizinisches Infektiologiezentrum Berlin

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DAkkS D-ML-13067-01-00 Berlin, DE
Basophile Eosinophile Erythrozyten Hämatokrit Leukozyten (Zellzahl) + 3 more
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qbig

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DAkkS D-K-21619-01-00 Leer, DE
Durchflussmess- 13 m³/h - Hochspannungsmessgrößen > 25 m³/h Volumendurchfluss > 40 m³/h + 3 more
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seca

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DAkkS D-K-22590-02-01 Hamburg, DE
nichtselbsttätige elektronische Waagen − Waagen
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steep GmbH EMV-Zentrum

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DAkkS D-PL-12064-01-01 Bonn, DE
DIN EN 55016-1-4 VDE 0877-16-1-4 DIN EN 55016-2-1 VDE 0877-16-2-1 DIN EN 55016-2-2 + 3 more
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synlab Medizinisches Versorgungszentrum Labor München Zentrum

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DAkkS D-ML-13149-01-00 München, DE
Blutungszeit 5-Hydroxyindolessigsäure Aminosäuren Carbohydrate-Deficient-Transferrin Everolimus + 3 more
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tech-team Kalibrierlabor

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DAkkS D-K-15210-01-00 München, DE
Gleichspannung 0,01 V Messgeräte 0,33 V 3,3 V 330 V Gleichstromstärke 30 µA + 3 more
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velotech.de

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DAkkS D-PL-17439-02-00 Schweinfurt, DE
DIN EN ISO 4210-1 DIN EN 15194: 2018 DIN 33946 DIN EN 15918 DIN EN ISO 11243 + 3 more
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wfp Institut für Wellpappenforschung und -prüfung

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DAkkS D-PL-17881-01-01 Darmstadt, DE
ISO 534 ISO 536 rs11887534 HABP2-Gen (c.1601G>A) rs7080536 ISO 1974 + 3 more
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Labor Wisplinghoff

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DAkkS D-ML-13062-01-00 Köln, DE
Liste aller Untersuchungsverfahren Webpräsenz des Medizinischen Laboratoriu Cannabinoide (Cannabinol, Cannabidiol) Cannabinoide (THC) Cannabinoide (THC-COOH) + 3 more
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Überörtliche Berufsausübungsgemeinschaft Fachärzte für Laboratoriumsmedizin und Mikrobiologie

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DAkkS D-ML-19859-01-00 Bochum, DE
Adrenalin Amiodaron, Desmethylamiodaron CDT Amiodaron, Desethylamiodaron Dopamin + 3 more
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Überörtliche Berufsausübungsgemeinschaft MVZ Eberhard & Partner Dortmund

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DAkkS D-ML-13403-01-00 Dortmund, DE
11-Desoxycortisol Acylcarnitine Agomelatin Albendazolsulfoxid a-Hydroxy-Alprazolam + 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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