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Vibrations, shocks and constant acceleration

Vibration, shock and constant acceleration tests are part of environmental testing used to assess the reliability, endurance and accelerated ageing of products from various sectors such as defence, energy, aeronautics, and railways. These tests evaluate the mechanical behaviour of products under normal or intensified usage conditions. They are integrated into comprehensive equipment qualification and characterisation programmes, alongside EMC, climatic and electrical tests.

Proposed services

LNE offers a wide range of mechanical tests to evaluate the resistance of your equipment subjected to demanding vibratory environments.

Sinusoidal and random vibration tests (COFRAC*),
Shock tests (half-sine, trapezoidal, SRC...) (COFRAC*),
Combined climatic vibration tests (heat, cold, humidity, VRT) (COFRAC*),
Constant acceleration tests,
Consulting, expertise and support.

New latest-generation shaker

To meet your needs, LNE has expanded its capabilities with the acquisition of a new 125 kN latest-generation electrodynamic shaker. Thanks to its unique modularity on the market, it enables testing on all types of products, from the lightest to the most voluminous.

Key technical features of our new shaker:

Force: 125 kN in sine/random and up to 375 kN in shock
Acceleration up to 200 g (3.5 m/s max)
Maximum displacement: 4'' (100 mm)
Two table sizes available: 900 x 900 mm and 1,400 x 1,400 mm (with guided head expander)

Resources available

To meet your vibration, shock and constant acceleration testing needs, we have the following equipment available at our laboratories in Trappes (78) and Nîmes (30) :

Instrumentation

Specifications

Instrumentation use

Vibrators

Frequency range: 3 - 2,000 Hz
Peak-to-peak displacement: 50 to 100 mm
Speed: 3.5 m/s max
Force: 35 to 125 kN
Load compensation: 300 to 2000 kg

Vibrations

Hydraulic jack

Frequency range : 0,1 - 300 HZ
Peak-to-peak displacement : 70 mm max
Speed : 0,4 m/s max
Force : 80 kN
Load compensation : 2 000 kg

Vibrations

Combined climate chamber

Temperature range : 70 to 150°C
Temperature variation : 10°C/min
Relative humidity : 10 to 95 RH
Volume : 0,8 m³

Enables combining
vibrational and climate tests

Shock table

Acceleration : 1 500 g / 20 kg
Load : 500 kg max
Minimum shock duration : 0.5 ms

Shocks

Centrifuge

Acceleration : 100 g max
On-board load : 100 kg max
Speed : 20 rotating contacts

Constant acceleration

Applicable regulations

The proposed tests can meet multiple standards, including:

NF EN 60068-2-6, 60068-2-64, 60068-2-27 (COFRAC*),
IEC 60068-2-6, 60068-2-64, 60068-2-27 (COFRAC*),
RTCA DO 160 / EUROCAE ED-14,
MIL STD 810,
NF EN 61373 / IEC 61373,
ETSI 300 019-2-xx,
STANAG 2895 and 4370,
NF EN 2591-401/402/403,
ISTA,
Customer-specific specifications.

Accreditations

Services performed under COFRAC Testing accreditation n° 1-0606

*List of accreditations, sites and scopes available at www.cofrac.fr

Products covered

All products such as aeronautical actuators, inertial units, embedded measuring instruments, electrical cabinets, portable electro-medical devices, railway electronic equipment...