ISO 7626-5

Experimental Modal Analysis Using Impact Excitation

This test method characterises the dynamic properties of structures through experimental modal analysis using impact hammer excitation. The method measures natural frequencies, damping ratios, and mode shapes by striking the structure and recording the resulting vibration response. It is widely used in aerospace, automotive, civil engineering, and mechanical equipment development to validate structural designs and identify potential vibration issues. Accreditation ensures proper instrumentation calibration, correct measurement methodology, and reliable data interpretation for safety-critical applications.

What it measures

  • Natural frequencies (modal frequencies)
  • Damping ratios (modal damping)
  • Mode shapes (displacement patterns)
  • Frequency response functions (FRF)
  • Coherence and data quality metrics
🇩🇪 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 7626-2 🇬🇧 BS EN ISO 7626-2 🇫🇷 NF EN ISO 7626-2 🇮🇹 UNI EN ISO 7626-2 🇪🇸 UNE EN ISO 7626-2 🇳🇱 NEN EN ISO 7626-2
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LEGNOLEGNO S.C.

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ACCREDIA 01379 Correggio, IT
DIN EN ISO 10140-2 DIN EN ISO 10077-1 DIN EN ISO 10077-2 DIN EN ISO 717-1 DIN EN 12208 + 3 more
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LGA Bautechnik GmbH Bautechnisches Prüflabor

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DAkkS D-PL-11117-01-00 Nürnberg, DE
DIN EN 62196-1: 2015 DIN EN 196-3 DIN EN 413-2 DIN EN 1308 DIN EN 300 132-3: 2005 + 3 more
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LGA Immissions- und Arbeitsschutz

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DAkkS D-PL-17126-01-00 Nürnberg, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN 45645-2 DIN ISO 12884 + 3 more
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LGAI TECHNOLOGICAL CENTER, S.A. (APPLUS+)

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ENAC LE894 Bellaterra, ES
UNE-EN 12015 UNE-EN 50065-1 UNE-EN IEC 61000-6-4 UNE-EN IEC 61000-6-3 UNE-EN 61000-6-3 + 3 more
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LIFEANALYTICS

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ACCREDIA 00113 Oderzo, IT
ISO 15705 DIN EN ISO 10705-2 ISO 15923-1 DIN EN ISO 10304-1 DIN EN ISO 9377-2 + 3 more
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LILANO

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COFRAC 1-2080 Saint Lo, FR
DIN EN ISO 4833-1 based on ISO 13366-2:2006 DIN EN ISO 5534 ASTM D 7238 ISO BS EN 3727-1:2002 + 3 more
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LINDE GAS ESPAÑA, S.A. (Unipersonal)

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ENAC LC10.040 Rubí, ES
10 · 10-6 mol/mol  C  20 · 10-6 mol/mo 10 · 10-6 mol/mol  C  5000 · 10-6 mol/ 1 · 10-6 mol/mol  C  10 · 10-6 mol/mol 1 · 10-6 mol/mol  C  5 · 10-6 mol/mol 10 · 10-6 mol/mol  C  100 · 10-6 mol/m + 3 more
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LNE - Laboratoires de Trappes

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COFRAC 1-0606 Trappes Cedex, FR
DIN EN ISO 2505 ISO 18553 AMD 1 DIN EN 12099 ISO 13480 ISO 6964 + 3 more
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LNE - Site de Nîmes

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COFRAC 1-5638 Nimes, FR
IEC 60068-2-6 DIN EN-60068-2-6
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LRQA Nederland

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RvA I081 Rotterdam, NL
NEN 3650-2 NEN 3650-1 NEN 3650-3 NEN 3651 NPR 3659
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Labor 28 MVZ

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Labor Augsburg MVZ

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Thrombozytenaggregation a-Hexachlorcyclohexan 2-Butanon Aceton Benzol + 3 more
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Labor Becker MVZ e

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Drogenscreening-Qualitativer Anti-HCV-Bestätigungstest Benzodiazepine, Kokain, Opiate, Buprenor Organische Säuren Neuroleptika, Antidepressiva + 3 more
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Labor Berlin - Charité Vivantes

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Thrombozytenaggregation (ADP, ASPI, TRAP) Oligosaccharide Aceton Ethanol + 3 more
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Labor Berlin - Charité Vivantes Services

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DAkkS D-ML-19677-01-01 Berlin, DE
Thrombozytenaggregation (ADP, ASPI, TRAP) Oligosaccharide Aceton Ethanol + 3 more
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Labor Brunner, Labormedizinisches Versorgungszentrum Konstanz

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Ampicillin Cefepim Ceftazidim HbA1c Katecholamine + 3 more
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Labor Fenner und Kollegen Medizinisches Versorgungszentrum für Labormedizin und Humangenetik

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qualitative Bestimmung von Antidepressiva, Cocain, Designerdrogen u Mitogenen, Medikamenten 5-Hydroxyindolessigsäure HbA1c + 3 more
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Labor Heidrich & Kollegen MVZ

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Thrombozytenfunktion Cyclosporin A Everolimus Lacosamid Lamotrigin + 3 more
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Labor Krause & Kollegen MVZ

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10-Hydroxy-Carbamazepin 9-Hydroxyrisperidon Amiodaron, Desmethylamiodaron Amisulprid Aripiprazol + 3 more
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hCG (qualitativ) Freie Fettsäuren gamma-Linolensäure, Arachidonsäure (AA) Katecholamine VMS, 5-HIES, HVS + 3 more
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Labor von Froreich

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Labor G. Enders MVZ Gesellschaft bürgerlichen Rechts

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Industries

Aerospace and aviation Automotive and rail vehicles Civil engineering and structures Mechanical equipment manufacturing Wind energy systems

Related Standards

  • ISO 7626-1 Vibration and shock — experimental modal analysis — Part 1: fundamentals and overview
  • ISO 7626-2 Vibration and shock — experimental modal analysis — Part 2: instrumentation for impact excitation
  • ISO 9614-1 Acoustics — determination of sound power levels of noise sources using sound intensity — Part 1: measurement at discrete points

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