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
๐Ÿ‡ฉ๐Ÿ‡ช DIN EN ISO 7626-1 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN ISO 7626-1 ๐Ÿ‡ซ๐Ÿ‡ท NF EN ISO 7626-1 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN ISO 7626-1 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN ISO 7626-1 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN ISO 7626-1 ๐Ÿ‡ฉ๐Ÿ‡ช DIN EN ISO 7626-2 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN ISO 7626-2 ๐Ÿ‡ซ๐Ÿ‡ท NF EN ISO 7626-2 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN ISO 7626-2 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN ISO 7626-2 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN ISO 7626-2
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COFRAC 1-7174 Velaux, FR
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
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Mycobacterium tuberculosis Komplex Mykobakterien Obligat aerobe Aktinomyceten Interferon-gamma nach + 3 more
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SYNLAB Medizinisches Versorgungszentrum Humangenetik Mannheim

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SYNLAB Medizinisches Versorgungszentrum Weiden

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DAkkS D-ML-13014-01-00 Weiden, DE
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SYNLAB Medizinisches Versorgungszentrum Weiden GmbH Medizinisches Versorgungszentrum Thรผringen

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DAkkS D-ML-13014-03-01 Jena, DE
5-Fluorouracil Unvertrรคglichkeit: DPD Mutationen Exon 14 c.1905+1 G>A rs3918290, Exon 11 c.1236G>A rs56038477, Exon 13 c.1679T>G rs55886062, Exon 22 c.2846A>T + 3 more
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Safe Gas Cylinders

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UKAS 4430 Swansea, GB
BS EN 1440:2016 + A1:2018 + EN ISO 23088:2020 Cylinders EN ISO 10460:2018 EN 14208:2004
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UKAS 4103 Bangor, GB
M002based on HSG 248 (HSG 248) โ€“ 2021 (PCM) based on HSG 248
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Saliger Gruppe

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DAkkS D-K-15008-01-01 Gladbeck, DE
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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 โ€” experimental modal analysis โ€” Part 1: fundamentals and overview
  • ISO 7626-2 Vibration and shock โ€” experimental modal analysis โ€” Part 2: instrumentation for impact excitation
  • ISO 9614-1 Acoustics โ€” determination of sound power levels of noise sources using sound intensity โ€” Part 1: measurement at discrete points

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