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
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COFRAC 1-2303 Thiant, FR
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DIN EN 27888 DIN EN ISO 10523 DIN EN ISO 7393-2 NF X 31-615 (Uniquement
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COFRAC 1-1249 Fraisses, FR
(BS EN ISO 6892-1: 2019) DIN EN 10002-1 ISO 6892-1 -2009 ASTM E8/E 8M ISO 6892-1 -2016 + 3 more
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IEC 60529: 1989 IEC 60068-2-2 IEC 60068-2-30 IEC 60068-2-1 IEC 60068-2-14 + 3 more
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COFRAC 1-6001 Riorges, FR
NF ISO 21438-3 NF X 43-269 NF ISO 21438-1 DIN EN ISO 16017-2 NF X 43-259 + 3 more
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COFRAC 1-6133 Cherbourg-En-Cotentin, FR
NF X 43-269 NF X 43-269 – NF X 43-050 NF ISO 22262-1 (parties utiles ISO 16000-7
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COFRAC 1-7464 Bellegarde, FR
DIN EN 17126 DIN EN 13624 DIN EN 13727 DIN EN ISO 11930 DIN EN 14476 + 3 more
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ACTALIA - CONTROLE ET QUALITE - SITE DE MAMIROLLE

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COFRAC 1-5576 Mamirolle, FR
NF V04-287 DIN EN ISO 19020 DIN 19662 ISO BS EN 3727-1:2002 ISO 8070 + 3 more
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COFRAC 1-5606 Brussieu, FR
NF X 43-269 NF X 43-050 NF X43-269 – Annexe NF X43-050 (parties utiles de la norme) NF X43-050 (useful parts of the standard + 3 more
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COFRAC 1-0905 Arzacq-Arraziguet, FR
0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 DIN ISO 16649-2 DIN EN ISO 6888-3 DIN ISO 11665-4 + 3 more
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COFRAC 1-0144 Quimper Cedex, FR
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COFRAC 1-1974 Egly, FR
NF EN 12469 Annexe H pour PSM NF X 44-201 (Octobre 1984) pour PSM NF EN 12469 Annexe G NF X 44-201 DIN EN 12469 + 3 more
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COFRAC 1-0196 Aurillac, FR
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COFRAC 1-6761 Clermont-Ferrand, FR
DIN 19662 DIN EN ISO 19020 DIN EN ISO 5534 NF V04-295 NF V08-059 + 3 more
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COFRAC 1-7447 Venelles, FR
NF X 43-269 ISO NF X 43-257 NF X 43-050 ISO 16000-7
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COFRAC 1-6043 Sainte Helene Du Lac, FR
NF X 43-269 NF X 43-050 NF X43-050 (parties utiles de ISO 16000-7
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COFRAC 1-5853 Saint-Pierre-De-Chandieu, FR
NF X 43-269 NF X43-050 (parties utiles de ISO 22262-1 NF X 43-257 NF X 43-050 + 1 more
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COFRAC 1-1364 Saint-Quentin-Fallavier, FR
DIN EN 14902 DIN ISO 16000-3 DIN EN ISO 16017-1 DIN EN ISO 16017-2 DIN ISO 16000-4 + 3 more
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COFRAC 1-5578 Villebon-Sur-Yvette, FR
NF T 90-412 0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 DIN EN ISO 16649-3 DIN EN ISO 6888-3 + 3 more
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COFRAC 1-5603 Petite-Foret, FR
DIN EN ISO 11546-1 prEN 16185-2 EN 15595 (hors essais au
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COFRAC 1-7298 Saint Etienne Du Rouvray, FR
NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de ISO 22262-1 NF X 43-050 + 1 more
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COFRAC 1-7202 Courbevoie, FR
DIN EN 14385 ETSI EN 301 489-1 V2.2.3 2019-11 NF X43-551 IS EN 1948-1:2006 2006 DIN EN 14789 + 3 more
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COFRAC 1-7428 Saint Germain Du Puch, FR
DIN ISO 17289 NF T 90-395 NF T 90-354 NF T 90-393 NF T 90-328 + 3 more
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COFRAC 1-2194 Plancy L'Abbaye, FR
NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 10304-1 DIN EN 12880 ISO 5815-1 + 3 more
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COFRAC 1-2044 Chateaubourg, FR
DIN EN IEC 60068-2-11 DIN EN 60068-2-14 DIN EN-60068-2-1 DIN EN-60068-2-2
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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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