CE / ISO Electrodynamic Vibration Exciter Modal shaker Table For Laboratory Test

Dynamic Shaker Vibration Testing Machine simulates the vibration environment under the laboratory condition, and test the impact strength as well as reliability of various vibration test applications. In the laboratory, with the aid of vibration testing system, model simulation of reproduction of sinusoidal, random, resonant search and dwell, classical shock and road simulation, etc. can be achieved. It is essential for product quality assurance, new product research and development.

Force = Mass x Acceleration (F = MA)

In general, the selection of a vibration system requires application of Newton’s Second Law of Motion: Force = Mass x Acceleration (F = MA). But this basic formula is only a starting point. It may be instructive to describe one example of an incorrect approach to estimating the required system force rating.

Example: “I have a 50 lb test specimen that must be tested @ 10 g. Therefore, I need a vibration system rated at 50 x 10 = 500 lbs force.”

After reviewing the following technical discussion you will have a better understanding of why this estimate of system force is incorrect

System Force Rating

Vibration systems have output force ratings typically expressed in terms of:

• Sine force: lbs (kN) pk
• Random Force: lbs (kN) rms
• Shock Force: lbs (kN) pk

The stated random force rating assumes a certain spectrum shape (usually flat) over a given frequency range (usually 20 Hz – 2,000 Hz) and a certain minimum mass load on the shaker. If these conditions are different from your test requirements, a new calculation of the effective random force rating may be necessary. These output force ratings provide a starting point for the Force (F) parameter in F = MA.

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

Applicable Industries: Automotive, Electronics, Aerospace, Vessel, Telecommunication, Photoelectronics, Instrument etc.

Features:

• Rugged suspension system and linear motion guiding, strong carrying capacity, good guiding functions, high stability
• Load center airbag has high static stiffness and low dynamic stiffness, strong carrying capacity, perfect performance on amplitude variation
• High efficiency D class power switching, 3-sigma peak current, provide finest power consumption and minimize harmonic distortion
• Quick self-diagnosis with safety interlock, high safety reliability
• Airbag shock isolation device for vibration platform without the need of additional foundation, perfect reproduction of vibrational wave and reduce vibration transmittance
• Provide horizontal and vertical expansion platform for different application
• Simple controller operation

Use Scenarios

• Qualification testing of automotive parts and systems, including industry standards like ISO/TS 16949, Squeak and Rattle tests, and Road Load Data applications
• Electronic assembly and computer equipment testing
• Avionics and military hardware testing, such as Mechanical Environmental Tests AECTP 400, ISO 9000, MIL-STD and AS9000 standard tests
• Telecommunication and satellite component testing
• General stress screening, including ISO 5344, HALT, ALT and HASS
• Product and package testing, such as ISTA and ASTM 4169 tests
• Shock test applications, including Shock Response Spectrum (SRS)
• Environmental testing with AGREE chambers, Combined Environmental Reliability Test (CERT) and others

Working Principle:

Specifications: