ISO 7626-2

Experimental Modal Analysis – Single-Point Excitation

ISO 7626-2 describes procedures for experimental modal analysis using single-point, single-axis excitation to characterise the dynamic properties and natural frequencies of structures and machines. This test method captures frequency response functions and mode shapes essential for structural design validation, vibration control, and fault diagnosis. Aerospace, automotive, civil engineering, and machinery manufacturers use modal analysis to refine designs and understand dynamic behaviour under operational loads. Accreditation ensures rigorous application of measurement protocols and data quality standards supporting engineering confidence in structural performance predictions.

What it measures

  • Frequency response functions (FRF) over specified frequency range
  • Natural frequencies (resonances) and modal damping ratios
  • Mode shapes and structural deflection patterns
  • Coherence and measurement quality indicators
  • Dynamic stiffness and impedance characteristics
🇩🇪 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 7626-5 🇬🇧 BS EN ISO 7626-5 🇫🇷 NF EN ISO 7626-5 🇮🇹 UNI EN ISO 7626-5 🇪🇸 UNE EN ISO 7626-5 🇳🇱 NEN EN ISO 7626-5
1,817 Accredited labs
19 Countries

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UKAS 2437 Udaipur 313 003, IN
DIN EN 55022: 2011 CISPR 22 (1997/2006/2008) IEC/CISPR 16-2-1 CISPR 32 (2015) + A1 (2019) AS/NZS CISPR 11:2004 + 3 more
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ACCREDIA 01046 Cerea, IT
DIN EN ISO 11546-1 UNI EN ISO 9295 DIN EN ISO 11957 ISO 354 ISO 3741 + 3 more
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DAkkS D-ML-18420-01-00 Lübeck, DE
HbA1c Basophile Eosinophile Thrombozyten Lymphozyten + 3 more
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DAkkS D-K-15103-01-01 Königswinter, DE
0,05 V - Gleichstromstärke dreiphasig 60 V; 120 V; 240 V > 240 V einphasig 0,002 V + 3 more
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DAkkS D-K-22359-01-00 Oberursel, DE
Wechselstromstärke 5 mA 5 mA, 10 mA, 20 mA 40 mA, 80 mA, 150 mA 240 mA, 300 mA, 480 mA 600 mA, 720 mA, 960 mA + 3 more
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UKAS 0332 Solihull, GB
ISO 7637-3: 2016 ISO 11452-4: 2020 ISO 11452-2: 2019 IEC/CISPR 25 ISO 11452-5: 2002 + 3 more
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DAkkS D-K-23094-01-01 Eisingen, DE
Außengewinde Nenndurchmesser zylindrische Innengewinde − Längenmessgeräte Längenmessmittel Länge + 3 more
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DAkkS D-PL-22057-01-01 Ludwigsburg, DE
DIN EN ISO 4210-1 DIN EN ISO 11243 ISO 5775-1 DIN EN 16054 DIN EN 1371-1 + 3 more
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DAkkS D-ML-13013-01-00 Chemnitz, DE
Thrombozytenfunktion Ristocetin) Thrombozytenaggregation Arachidonsäure, Epinephrin, Kollagen, Ri 17-alpha-Hydroxy-Progesteron + 3 more
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DAkkS D-ML-13117-01-00 Regensburg, DE
angeborener Chromosomensatz 22q11.2-Mikrodeletionssyndrom (22q11.2) Kopienzahlveränderungen (Regionen laut MLPA-Kit) + 3 more
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DAkkS D-K-15186-01-01 Bitterfeld-Wolfen, DE
- Gleichspannung Railway vehicles — specific test require Quellen - Gleichstromstärke / Messgeräte + 3 more
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DAkkS D-K-15186-01-02 Bitterfeld-Wolfen, DE
Masse oder Konventioneller Wägewert/ Massenormale* Massenormale* > 100 g + 3 more
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DAkkS D-ML-13153-01-00 Jena, DE
Angelmann-Syndrom (15q11-q13 Region) Prader-Willi-Syndrom (15q11-q13 Ausschluss/ Nachweis mütterlicher Zellen im pränatalen + 3 more
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DAkkS D-K-18080-01-00 Friedrichshafen, DE
Parallelendmaße 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße * 0,5 mm Parallelendmaße Parallelendmaße > 100 mm + 3 more
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DAkkS D-K-19937-01-02 Losheim am See, DE
Railway brake — anti-slide device (UIC 5 Messgeräte im Kraftfahrwesen − Rollenbremsprüfstände − Plattenbremsprüfstände − Scheinwerfer-Einstell-Prüfsystem + 3 more
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ZwickRoell

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DAkkS D-K-18351-01-00 Ulm, DE
Absolutdruck p * Kraftmesseinrichtungen von Werkstoffprüfmaschinen Acoustics — tonality assessment (DIN 456 Auflagekraft von Fallmassen + 3 more
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DAkkS D-ML-13280-01-00 Hamburg, DE
Thombozyten-Funktionstest 10-OH-Carbazepin 11-Deoxycorticosteron 11-Deoxycortisol 21-Deoxycortisol + 3 more
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DAkkS D-ML-13432-01-00 Würzburg, DE
Automatisches Blutbild Erythrozytenzahl Hämatokrit Hämoglobin Hb im einzelnen Erythrozyten + 3 more
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DAkkS D-ML-13131-02-01 Hannover, DE
HbA1c Basophile Eosinophile Basophile Granulozyten Lymphozyten + 3 more
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DAkkS D-ML-13131-01-01 Göttingen, DE
Homovanillinsäure Vanillin-Mandelsäure 5-Hydroxyindolessigsäure VLCFA Phytansäure + 3 more
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DAkkS D-ML-20928-01-01 Jena, DE
Albumin Alkalische Phosphatase Alpha-Amylase AT3 Bilirubin, direkt + 3 more
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DAkkS D-ML-13318-01-00 Halle (Saale), DE
HbA1c CDT Vitamin B1 Vitamin B6 Vitamin A + 3 more
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DAkkS D-ML-18746-01-01 Fürstenfeldbruck, DE
HbA1c Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Hämoglobin + 3 more
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DAkkS D-ML-20700-01-00 Hamburg, DE
Thombozyten-Funktionstest 10-OH-Carbazepin 11-Deoxycorticosteron 11-Deoxycortisol 21-Deoxycortisol + 3 more
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DAkkS D-PL-12130-01-00 Regensburg, DE
IEC 60068-2-2 IEC 60068-2-14 DIN EN 60068-2-14 IEC 60068-2-20 IEC 60068-2-58: 2015 + 3 more
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Industries

Aerospace and defence engineering Automotive design and validation Civil engineering and bridge design Heavy machinery and equipment development Vibration and noise control consulting

Related Standards

  • ISO 7626-1 Vibration and shock—Experimental determination of mechanical mobility—Part 1: Basic definitions and transducers
  • ISO 7626-5 Vibration and shock—Experimental determination of mechanical mobility—Part 5: Coupling of mechanical mobility measurement instrumentation
  • ISO 6954 Mechanical vibration and shock—Acceleration transducers—Specifications for laboratory standard instruments

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