Simulation table: Difference between revisions

Revision as of 12:59, 16 April 2012

Revision as of 03:07, 20 April 2012

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{{unrefunreferenced|date=December 2011}}

[[Image:Multi Axis Shaker Table.jpg|thumb|A modern Multi Axis Shaker table]]

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They can simulate acceleration and displacement outputs and reproduce key data collected on proving grounds, by providing a full six degrees of freedom (6 DOF).

These test systems consist of [[Stewart_platformStewart platform|hexapod]] platform with a low resonance table on top. The test system can be used to simulate any kind of vibration in all six degrees of freedom.

The movements of the test system are tightly controlled by a [[digital test controller]].

Simulation tables can be either electrical or hydraulical. Electric simulation table usually achieve a frequency range up to 25  Hz with a maximum payload of around 500 kilograms.

For higher payloads or frequencies [[hydraulic]] simulation tables are used.

Low frequency hydraulic simulation tables can easily reach 0.1Hz1 Hz to 120  Hz and test payloads up to 100tons, while specialized high frequency simulation tables can reach in excess of 100  Hz, with more than 14 g of vertical acceleration to payloads beyond 680  kg (1,500  lbs).

==References==

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*[http://www.european-test-services.net/services-mechanical-Hydra-Vibration.html HYDRA Multi-Axis Vibration Facility of the European Space Agency]

[[Category:Vibration engineering]]

{{Uncategorized|date=April 2012}}