Electrodynamic Vibration Test Equipment Meet MIL STD 810G and MIL STD 202H

Electrodynamic Vibration Test Equipment Meet MIL STD 810G and MIL STD 202H

How to select a Vibration Test System:

Before doing vibration testing, consider what type of test needs to be run. This will depend on the product being tested and the information needed. Consider as well how many samples are available, fixture types, parameters and breakpoints.

Finding a proper system to run a particular test on a particular specimen involves three distinct steps:

1. Determine the Frequency Range of the test and the extreme Peak motions (Acceleration, Velocity and Displacement) from the Test Specification. Depending upon the type of test (Swept Sine, Random, or Classical Shock for example) you will perform different calculations to accomplish this.
    
2. From the Device Specifications determine the mass of the device under test (DUT) and the dimensions of the mounting surface required to bolt the DUT to a shaker table with its center of gravity (CG) over the table’s center. This may require use of a head expander and/or other mounting fixture. Determine the mass of such additional hardware including all mounting fasteners.
    
3. Look at the Shaker Specifications of a trial system. Verify that the mass of the DUT and any mounting fixtures are less than the shaker’s rated Maximum Static Payload. Verify that the DUT (or its mounting hardware) can be bolted to the shaker’s armature or head expander. Add the Effective Armature Mass and head expander mass to the DUT mass and the mass of any mounting fixtures and fasteners and any accelerometers mounted to the DUT – this is the Total Moving Mass that must be moved by the shaker during the test. Multiply the Total Moving Mass by the Acceleration determined in step one to calculate the Force required. Verify the determined test Frequency Range, Force, Peak Acceleration, Peak Velocity and Peak Displacement required by the test and DUT are all less than the corresponding performance ratings of the selected shaker system. If this is true, the selected shaker is acceptable. If not, a more powerful shaker is called for.

Applicable Standards:

MIL-STD, DIN, ISO, ASTM, IEC, ISTA, GB, GJB, JIS, BS etc.

Applicable Industries:

utomotive, Electronics, Aerospace, Vessel, Telecommunication, Pptoelectronics, Instrument etc.

Features:

• Strength of the suspension system and linear motion guiding, strong carrying capacity, good guiding functions, high stability.
• Perfect performance on amplitude variation.
• High efficient on D Class power conversion, 3 - Sigma peak current, provide the optimization of power consumption and minimum harmonic distortion.
• Rapid self-test diagnostics and chain safeguard, high high safety and reliability
• Air gasbag isolation damping device realize the the vibration table with no need for special foundation. Perfect reappearance vibration waveform and the reduction of vibration transmission
• Different application on the vertical and horizontal tables.
• Simple operation for the controller.

Working Principle:

Specifications: EV103-EV220