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
1,591 Accredited labs
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HLK Stuttgart

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DAkkS D-PL-11026-01-01 Stuttgart, DE
DIN EN 442-2 DIN EN 16430-1 DIN EN 16430-2 DIN EN 16430-3 DIN 4703-3 + 3 more
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DAkkS D-K-21083-01-01 Neunkirchen-Heinitz, DE
Gleichspannung 0 µV Messgeräte > 20 mV Messgeräte > 200 mV > 2 V > 20 V + 3 more
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DAkkS D-K-17344-01-01 Hochdorf-Assenheim, DE
Härte *) 20 HRA Härtevergleichsplatten 20 HRB nach Rockwell Verfahren 20 HRC 40 HRD 60 HRF + 3 more
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DAkkS D-ML-13446-01-01 Wernigerode, DE
automatische Zelldifferenzierung Erythrozyten Leukozyten Retikulozyten Thrombozyten + 3 more
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DAkkS D-K-15122-01-00 Cunewalde, DE
Absolutdruck p abs > 41 bar Negativer und positiver Überdruck + 3 more
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DAkkS D-PL-12083-01-04 Bönnigheim, DE
DIN 53160 DIN 54034 DIN 54056 DIN EN 20105-A02 DIN EN 20105-N01 + 3 more
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DAkkS D-K-15198-01-00 Hanau, DE
Taupunkttemperatur thermometer, -80 °C bis Railway braking — urban guided transport > -35 °C bis Temperatur- −35 °C bis + 3 more
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DAkkS D-K-12029-02-02 Darmstadt, DE
Übertragungsmaß von Messmikrofonen oder Freifeld-Leerlauf- 20 Hz Freifeld -Übertragungsmaß Vorverstärker, nach IEC + 3 more
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Hydrotechnik

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DAkkS D-K-15045-01-01 Limburg a. d. Lahn, DE
Negativer und Positiver Überdruck p e > 0,015 bar Überdruck p (ein- oder mehrgängige + 3 more
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DAkkS D-PL-18818-02-02 Schwerin, DE
DIN EN ISO 10993-1 DIN EN ISO 10993-5 DIN EN ISO 17405 ISO 10993-23 DIN EN ISO 10993-18 + 3 more
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Hygiene Nord

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DAkkS D-PL-18411-01-04 Greifswald, DE
DIN EN ISO 10993-5 DIN EN ISO 10993-1 DIN EN ISO 11737-2 DIN EN 1040 DIN EN IEC 60601-2-75 + 3 more
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DAkkS D-K-15192-01-00 Oberrot, DE
Innen- und Tiefenmaße Konventioneller Wägewert/ Massenormale Festkörpervolumen + 3 more
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DAkkS D-PL-15179-08-01 Stollberg, DE
IEC 60068-2-1 IEC 60068-2-2 DIN EN 60068-2-30 IEC 60068-2-30 DIN EN IEC 60068-2-38 + 3 more
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DAkkS D-K-15179-01-01 Gifhorn, DE
Messgeräte 0,01 V Messgeräte 0,33 V 3,3 V 330 V Quellen 0,01 V + 3 more
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DAkkS D-PL-20737-01-00 Bayreuth, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN EN 61800-5-1: 2017
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DAkkS D-PL-19746-01-04 Deggendorf, DE
DIN EN ISO 17892-2 DIN EN ISO 17892-3 DIN EN ISO 17892-4 DIN 18121-2 DIN 18125-2 + 3 more
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DAkkS D-ML-13224-01-01 Berlin, DE
HbA1c Vitamin A Vitamin B1 Vitamin B2 Vitamin B6 + 3 more
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DAkkS D-PL-11086-01-00 Schwäbisch Gmünd, DE
ISO 2143 DIN EN 12143 DIN 53210 DIN EN 12373-4 DIN EN ISO 2812-1 + 3 more
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DAkkS D-ML-20687-01-00 Berlin, DE
Thrombozytenaggregometrie Drogen- und Medikamentenscreening Freie Fettsäuren Linolensäure, Eicosapentaensäure + 3 more
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DAkkS D-PL-13119-02-01 Dresden, DE
ASTM F1978 ASTM G195 DIN EN ISO 4287 DIN EN ISO 4288 DIN EN ISO 5470-1 + 3 more
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DAkkS D-ML-13142-01-01 Berlin, DE
Fettsäureprofil der Erythrozytenmembran Kurzkettige Fettsäuren MMA (Methylmethacrylat) Gesamtporphyrine + 3 more
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DAkkS D-ML-13142-02-01 Potsdam, DE
Hämoglobin A1c (HbA1c) Differenzialblutbild Erythrozyten Erythroblasten (NRBC) Hämatokrit + 3 more
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DAkkS D-ML-13089-01-00 Frankfurt (Oder), DE
HbA1c Eosinophile, Basophile, MCV, MCH) Retikulozyten Urinsediment Elektrolyte (Kalium, Natrium, Chlorid) + 3 more
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DAkkS D-PL-12071-01-01 Nordhausen, DE
DIN EN 60068-2-14 DIN EN 60068-2-30 DIN EN IEC 60068-2-38 DIN EN 60068-2-53 DIN EN 60068-2-64 + 3 more
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DAkkS D-K-15027-01-00 Düsseldorf, DE
Plasma, Serum, Plasma 0,5 mmol/L Plasma, Serum, Plasma 50 mmol/L Plasma, Serum, Plasma Material Urin + 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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