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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Mato Nagel Zentrum für Nephrologie und Stoffwechsel Molekulargenetisches Labor

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ACCREDIA 01523 Piossasco, IT
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UKAS 1780 Wickford, GB
M002based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
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First Environment

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UKAS 0166 Cannock, GB
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FlexSpect

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#EN ISO 5164:14 # EN 116-97 #ISO 12185 NEN 4400-2 # ISO 13736 + 3 more
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Fluke Precision Measurement

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UKAS 0183 Norwich, GB
Frequenc 220 mV range FREQUENCY 10 Hz to 100 kHz difference from 10 % to 100 % of the sta 6105A control 0° to 360° + 3 more
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Fogra Forschungsinstitut für Medientechnologien

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DAkkS D-PL-11164-01-00 Aschheim, DE
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ACCREDIA 00745 Corato, IT
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UKAS 9875 Benfleet, GB
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(HSG 248) – 2021 (PCM) based on HSG 248 DOC/002 based on HSG 248
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Framatome GmbH "Radiochemische Analyse", "Chemische Analyse", "Inkorporationsüberwachung"

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Framatome GmbH Kalibrierlaboratorium

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Franks Portlock Consulting

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UKAS 4155 Sunderland, GB
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Franz Wohl & Partner Prüfmaschinen

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Kraft (WPM) 30 N Vibration measuring instruments — test m maschinen nach DIN Kraft * 10 N Acoustics — tonality assessment (DIN 456 + 3 more
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Fraunhofer Institut für Chemische Technologie ICT Prüflaboratorium für Umweltsimulation und Produktqualifikation

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Fraunhofer Institut für Keramische Technologien und Systeme Dresden

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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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