What is an electrodynamic shaker?

An Electrodynamic Shaker converts electrical energy from the Power Amplifier to mechanical vibrations using the principles of electromagnetism as described by Maxwell’s Right Hand Rule and Fleming’s Left Hand Rule.

What is shaker vibration testing?

A shaker is a device used in vibration testing to excite the structure either for endurance testing or modal testing.

How does an electromagnetic shaker work?

Electromagnetic shakers operate on the principle of magnetism. Electric current in a wire will establish a magnetic field. When the wire is wound in a coil the effect of the magnetic field is multiplied because of the multiple windings of the coil.

Why vibration test is required?

There is a lot of influence from vibration in long term driving and off-road driving. Observation for durability and influence of vibration is an important process to obtain the reliability of products. All of the possible environments that a car will experience in its lifetime are reproduced during vibration testing.

What is a permanent magnet shaker?

Permanent magnet shaker. A permanent magnet, electrodynamic shaker for vibration testing of small components and assemblies, as well as for laboratory experiments, modal studies and structural analysis. It can impart maximum forces up to 196 N (44 lbf).

How do I choose a vibration shaker?

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.

How do I choose a shaker?

In order to choose the right shaker, there are a few major specifications to consider such as frequency range and waveform, displacement and velocity, the number of axes to be tested, payloads and vibration/shock levels, and force rating.

How much does vibration testing cost?

To set up for full-spectrum vibration analysis you can spend as little as about $20,000 to around $60,000. The higher cost is generally associated with the more feature-laden software, not significantly higher hardware costs.

What is G level in vibration?

Vibration can be expressed in metric units (m/s2) or units of gravitational constant “g,” where 1 g = 9.81 m/s2. An object can vibrate in two ways: free vibration and forced vibration. Free vibration occurs when an object or structure is displaced or impacted and then allowed to oscillate naturally.

Which motor is used in vibrating table?

The KM vibration motor series used for vibration tables are three-phase induction motors. An inverter can therefore be used to change frequency.

How do you size a shaker?

The equation Force = Mass x Acceleration is the basis for sizing shakers and determining if a shaker can perform a specific shock or vibration test. The more mass you put on your shaker, the less acceleration the shaker can produce. Conversely, the less mass you put on your shaker, the more acceleration it can produce.

How does a vibrating table work?

A vibrating table is used to aid the compaction of materials in containers, boxes, and bulk bags. The vibrating action helps materials and products nest closely and settle to reduce product volume to a minimum. This can reduce container size and therefore reduce the cost of transport.

What is PSD mean in vibration?

Power spectral densities
Vibration in the real world is often “random” with many different frequency components. Power spectral densities (PSD or, as they are often called, acceleration spectral densities or ASD for vibration) are used to quantify and compare different vibration environments.

What is SeV and sew series of electrodynamic shaker?

Sdyn’s SEV and SEW series of Electrodynamic Shaker produces vibration based on the principle of magnetism. The SEV series is air cooled and SEW series is water cooled, respectively.

What is the range of the Shaker?

The product portfolio covers all ranges of shaker, from 10 kgf up to 32000 kgf and beyond. read more… With the various demands and requirements of the clients, we are presenting an extensive range of Electrodynamic Shakers.

What is a vibration shaker used for?

They are ideally suited for general purpose vibration testing of small components and sub-assemblies, or as excitation transducers for modal, academic, biomedical, or laboratory research. The shakers feature extremely rugged suspension systems using carbon fiber composite leaf armature flexures.

What is included in a shaker test kit?

Shaker kits include an amplifier and accessory kit. A full line of testing accessories, such as Lateral Excitation Stands, AirRide TM Test Supports, Horizontal Tables, and Head Expanders, are also available.