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 1,651–1,675 of 1,817 labs

DAkkS D-ML-13021-07-01 Münster, DE
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ZNS spez. Tau Protein ZNS spez. Beta-Amyloid Zellzahl- und Zelldifferenzierung Beschaffenheit des Liquors Glukose + 3 more
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Cyclosporin A Everolimus Sirolimus Cyclosporin A, Everolimus, Sirolimus, Ta alpha-Linolensäure + 3 more
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Treponema pallidum (RPR) Clostridioides difficile (Glutamatdehydrogenase 1 (Antigen) Streptococcus pneumoniae + 3 more
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DAkkS D-ML-13021-09-00 Münster, DE
anti-CMV IgG anti-CMV IgM CMV IgG Avidität Denguevirus Antigen Denguevirus IgG Antikörper + 3 more
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Azoospermie, Oligozoospermie (AZF) angeborener Chromosomensatz erworbener Chromosomensatz
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DAkkS D-ML-13021-01-00 Münster, DE
Cyclosporin A Everolimus Sirolimus Cyclosporin A, Everolimus, Sirolimus, Ta alpha-Linolensäure + 3 more
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DAkkS D-ML-13084-02-00 Regensburg, DE
Liste aller Untersuchungsverfahren Webpräsenz des Medizinischen Laboratoriu Cyclosporin A 25-Hydroxy Vitamin D Ethylglucuronid, Ethylsulfat + 3 more
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DAkkS D-ML-13084-03-00 Regensburg, DE
Rapid EDTA-Plasma Reagin Lipoid-Antikörper/Treponema Treponema pallidum Enteritiserreger (Salmonella Shigella spp., Yersinia spp.) + 3 more
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DAkkS D-ML-13069-04-01 Kiel, DE
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DAkkS D-ML-13069-06-00 Lübeck, DE
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DAkkS D-ML-13069-18-01 Lübeck, DE
angeborener Chromosomensatz erworbener Chromosomensatz Fra(X)-Syndrom, FXTAS (FMR1) Friedreich Ataxie (FXN) DRPLA (ATN1) + 3 more
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DAkkS D-ML-13069-02-01 Kiel, DE
10-OH-Carbazepin 9-OH-Risperidon Acebutolol Ajmalin Amiodaron, Desmethylamiodaron + 3 more
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DAkkS D-ML-13069-08-00 Kiel, DE
Sprosspilze, Schimmelpilze, Dermatophyte Staphylococcus aureus, MRSA Plasmodien (Malaria) (Plasmodium falciparum/vivax/ovale/malariae Legionella, Antigen + 3 more
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DAkkS D-ML-13130-02-00 Tübingen, DE
Phytansäure Behensäure Lignocerinsäure Cerotinsäure Adrenalin + 3 more
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DAkkS D-ML-13130-04-00 Tübingen, DE
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DAkkS D-ML-13130-01-00 Tübingen, DE
Urinsediment (Leukozyten) Legionella spp. Lipoid-AK (Treponema pallidum Aktivitätsparameter) Salmonella spp. + 3 more
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DAkkS D-ML-13130-03-01 Tübingen, DE
Herpes-simplex (IgM) Herpes-simplex (IgG) Herpes-simplex 1 (IgG) Herpes-simplex 2 (IgG) Varizella-Zoster-Virus (IgM) + 3 more
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DAkkS D-ML-13130-07-00 Tübingen, DE
Ataxien (FXN, SCA1, SCA2, SCA3, SCA6, SC Tumor-Prädispositionen: Brust- Hereditäres Magenkarzinom (CDH1) C9orf72 Chorea Huntington (HTT) + 3 more
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DAkkS D-ML-13130-05-00 Tübingen, DE
Basophile Granulozyten Allergenspezifisches IgE Gesamt IgE Tryptase anti-Cardiolipin-IgG + 3 more
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DAkkS D-ML-13294-08-00 Ulm, DE
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DAkkS D-ML-13294-03-01 Ulm, DE
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DAkkS D-ML-13294-07-00 Ulm, DE
Treponema pallidum (Cardiolipin Antikörper, Lues-Analytik) Cryptococcus neoformans Meningitiserreger (Streptococcus agalactiae, Haemophilus + 3 more
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DAkkS D-ML-13294-06-00 Ulm, 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 — 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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