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

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DAkkS D-ML-19493-02-00 Krefeld, DE
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Differentialblutbild Kleines Blutbild (maschinell) Thrombozyten Unreife Thrombozyten (IPF) Urinsediment (maschinell) + 3 more
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HbA1c Großes Blutbild Kleines Blutbild Retikulocyten Natriumchlorid + 3 more
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Verschlußzeiten 10-Hydroxycarbamazepin + Oxcarbazepin Amiodaron + Desmethylamiodaron Amisulprid + 3 more
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IGF-1 (Somatomedin C) Lamotrigin HbA1c Aldosteron Albumin + 3 more
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17-OH-Progesteron Androstendion Everolimus Metanephrin, Normetanephrin Methylmalonsäure + 3 more
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Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Hämatokrit Leukozyten + 3 more
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Liste aller Untersuchungsverfahren im fl Webpräsenz des Medizinischen Laboratoriu HbA1c Basophile Basophile absolut + 3 more
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DAkkS D-ML-18493-01-00 Darmstadt, DE
HbA1c Großes Blutbild Kleines Blutbild Retikulocyten Natriumchlorid + 3 more
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DAkkS D-ML-13247-01-01 Sindelfingen, DE
Ristocetin Kofactor Aktivität Willibrand Faktors a-Hydroxy-Alprazolam Amilsulprid 7-amino-Flunitrazepam + 3 more
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DAkkS D-PL-14419-01-00 Karlsruhe, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN EN 14662-3 DIN EN 14211 + 3 more
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DAkkS D-PL-18547-02-03 Neumünster, DE
DIN EN 16174 DIN CEN ISO/TS 16179 DIN EN 15933 DIN ISO 15178 DIN EN 15936 + 3 more
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GPT GOT GGT Salmonellen Shigellen + 3 more
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DAkkS D-K-21171-01-01 Chemnitz, DE
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DAkkS D-K-21443-01-00 Schmalkalden, DE
(ein- und mehrgängige zylindrische Außen- und symmetrischem und unsymmetrischem Profil) Außengewinde + 3 more
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DAkkS D-PL-11240-01-01 Bremen, DE
DIN EN 60601-2-4 IEC 60512-4-1 DIN EN 124-2 IEC 60512-4-3 DIN EN 60601-2-44 + 3 more
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DAkkS D-ML-21457-02-00 Lehrte, DE
Aluminium Blei Eisen, Kupfer Ampicillin Cefepim + 3 more
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DAkkS D-K-21622-01-00 Unterschleißheim, DE
anteile Kohlenstoffmonoxid Kohlenstoffdioxid Methan Ethan + 3 more
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DAkkS D-K-15223-01-00 Wertheim, DE
Taupunkttemperatur Fixpunktzellen *) thermometer (SPRT) *) meter, direkt anzeigende thermometer und + 3 more
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DAkkS D-ML-14413-03-01 München, DE
Cryptococcus neoformans Cardiolipin AK Escherichia coli K1-AG Haemophilus influenzae Metromec Software AG + 3 more
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DAkkS D-ML-14413-01-01 München, DE
Gesamt IgG Albumin Treponema pallidum (Lues) Thrombozytäre Antikörper Treponema pallidum (Lues + 3 more
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DAkkS D-PL-12159-01-00 Krefeld, DE
DIN EN ISO 16484-5 DIN EN ISO 16484-6 IEC 62386-101 IEC 62386-102 IEC 62386-103 + 3 more
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DAkkS D-PL-19548-01-03 Waldkraiburg, DE
DIN EN 13018 DIN EN 50289-1-2 DIN EN 50289-1-3 DIN EN 50289-1-4 DIN EN 50289-1-5 + 3 more
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DAkkS D-ML-13341-01-01 Berlin, DE
17-OH-Carbazepin Amiodaron, Desmethylamiodaron Amitriptylin Clobazam Clomipramin + 3 more
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DAkkS D-K-20515-01-00 Filderstadt, 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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