Vibration testing is simulating the vibration environment by the shaker in the laboratory, introducing force function into the UUT to test the response of the UUT to a defined vibration environment. Vibration testing is performed to test the product's durability, integrity, fatigue life, and resonant frequencies.
As one of the most professional vibration shaker manufacturers in China, CME offers mechanical vibration shakers worldwide.
Vibrations testing is one of the most important reliability tests for a variety of industries. Many industries require their own standards to access the damages caused by vibrations and qualify the product. Following are the standards categorized by CME.
Our vibration testing shakers are designed to help you meet rigorous industry and military standards, including:
MIL-STD-810G/H (Environmental Engineering)
IEC 60068-2-6/64 (Vibration & Shock)
ISTA Series (Packaging Testing)
ASTM D999 (Container Vibration)
ISO 16750 (Road Vehicles)
There are three types of shaker systems—electrodynamic (ED) shaker, servo-hydraulic (hydraulic) shaker, and mechanical shaker. CME offers hydraulic vibration shaker for sale. The major specifications to consider are frequency range, displacement, acceleration, tested axes, payload and vibration/shock levels, and force rating. Since mechanical shaker can only test sine and was out of date, we discuss the other two types.
For relatively low-frequency vibration (typically less than 200 Hz), the servo-hydraulic shaker is adopted. An electrodynamic shaker is used for higher frequencies (typically 5 Hz to 2500 Hz). ED shaker's displacement is under 51mm (P-P), while hydraulic shaker can be up to 100mm (P-P). Moreover, if it’s a significant force test, the hydraulic shaker will be the cost-effective choice.
There are three types of mechanical vibration shaker systems—electrodynamic (ED) shaker, servo-hydraulic (hydraulic) shaker and mechanical shaker. The major specifications to consider are frequency range, displacement, acceleration, tested axes, payload and vibration/shock levels, and force rating. Since mechanical shaker can only test sine and was out of date, we discuss the other two types.
For relatively low-frequency vibration (typically less than 200 Hz), servo hydraulic shaker is adopted. Electrodynamic shaker is used for higher frequencies (typically 5 Hz to 2500 Hz). ED shaker’s displacement is under 51mm (P-P), while hydraulic shaker can be up to 100mm (P-P). Moreover, if it’s a significant force test, the hydraulic shaker will be the cost-effective choice.
Sine
Random
Resonant search & dwell
Sine on Random
Random on Random
Sine & Random on Random
SRS (Shock Response Spectrum) Analysis
To select a suitable shaker to do a vibration test, we should know the following parameters:
-UUT Size & Weight (including fixture)
-Frequency Range and Waveforms
-Displacement and Acceleration
-Test Direction
-Target Vibration Test Profile
Yes, for certain low-acceleration, long-duration shock pulses, a vibration testing shaker is an efficient and cost-effective solution.
CME's servo-hydraulic shakers can achieve frequencies as low as 0.1 Hz, ideal for ultra-low frequency fatigue and motion simulation.
Vibration test using the 1-inch fixed displacement method, peak-to-peak, at a predetermined frequency for the ISTA 1A and 1B procedures.
The 1C, 1D, and 1E procedures require a vibration test using two alternative methods: fixed linear vertical displacement or random vibration.
Instead, for procedures 1G and 1H, the testing sequence requires a random vibration test. For the 2A and 2B procedures, the testing sequence outlines two testing procedures: the fixed-displacement vibration test and the random vibration test. However, the ISTA 2C procedures require a random vibration test under dynamic load. The ISTA 3A procedure is composed of different types of tests depending on the package to be tested (standard, small, flat, or elongated) and its characteristics. In the case of vibration tests, the performance of a random vibration test with or without top load is required for all types of packages. Optionally, a random vibration test at low pressure may be performed.
The ISTA 3B procedure requires the performance of a random vibration test with the top load. However, protocols ISTA 3E and 3H also require the performance of a random vibration test, but without a top load in this case.
Project 3K requires a random vibration test. A random vibration test with or without top load.
