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
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DIN EN ISO 7626-1
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BS EN ISO 7626-1
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NF EN ISO 7626-1
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UNI EN ISO 7626-1
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UNE EN ISO 7626-1
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NEN EN ISO 7626-1
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DIN EN ISO 7626-5
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BS EN ISO 7626-5
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NF EN ISO 7626-5
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UNI EN ISO 7626-5
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UNE EN ISO 7626-5
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NEN EN ISO 7626-5
Aerospace and defence engineeringAutomotive design and validationCivil engineering and bridge designHeavy machinery and equipment developmentVibration and noise control consulting
Related Standards
ISO 7626-1Vibration and shock—Experimental determination of mechanical mobility—Part 1: Basic definitions and transducers
ISO 7626-5Vibration and shock—Experimental determination of mechanical mobility—Part 5: Coupling of mechanical mobility measurement instrumentation
ISO 6954Mechanical vibration and shock—Acceleration transducers—Specifications for laboratory standard instruments
Scope