Random Vibration Table Testing Equipment Simulate Real Life Environmental

Vibration Testing Equipment Simulate Real Life Environmental with Random Vibration


Vibration Shaker

This test system generates vibration according to the parameters such as arbitrary force, acceleration, and frequency. It can evaluate various industrial products by applying vibration load.

Vibration test system for evaluating industrial products against vibrations. The system consists of a vibration generator, a power amplifier, and a vibration control system. It can provide a vibration test to cope with various loads such as sine vibration, random vibration, mechanical shock pulse and replication of real-time trace.


Standard Models: EV203-EV220

Features:

• Well-designed dynamic circle skeleton, with a higher stage axial resonance frequency.
• Two-magnetic circuit, magnetic flux leakage low, compact structure and rational.
• Rocker Rod roller bearings straight and import-oriented composite body stiffness orientation, eccentric load capacity.
• Advanced technology move around the system to ensure that the dynamic circle of high reliability.
• New duct design and enhance the cooling effect.
• Provide horizontal and vertical expansion platform for different application.

How to select a Vibration Test System:

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:
Automotive, Electronics, Aerospace, Vessel, Telecommunication, Pptoelectronics, Instrument etc.


Working Principle: