Simulation table: Difference between revisions

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A simulation table is an automotive test system specifically designed for the high-frequency testing of vehicle components. It is sometimes also called a [[Multi-Axis Shaker Table]] or MAST.

[[Image:Multi Axis Shaker Table.jpg|thumb|A modern multi-axis shaker table]]

A '''simulation table''' or '''multi-axis shaker table''' ('''MAST''') is an [[Automotive industry|automotive]] test system specifically designed for the high-frequency testing of vehicle components. It is sometimes also called a [[Multi-Axis Shaker Table]] or MAST.

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).

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

These test systems consist of [[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.

These test systems consist of a [[Stewart 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 {{convert|500 kilograms|kg|lb}}.

For higher payloads or frequencies [[hydraulic]] simulation tables are used. Low frequency hydraulic simulation tables can easily reach 500.1 Hz to 120 Hz and test payloads up to 100 tons, while specialized high frequency simulation tables can reach in excess of 100  Hz, with more than 14 [[Gravitational gacceleration|G of vertical acceleration]] to payloads beyond {{cvt|680 |kg (1,500 lbs)|lb}}.

==References==

* {{cite web |author1=P. Sollogoub |author2=J.C Quéval |author3=Th Chaudat |url=https://www.ncree.org/ncree-jrc/CD/address/JC-Queval.pdf |title=Seismic Testing Capabilities of Cea Saclay Laboratory |access-date=13 November 2024}}

* {{cite journal |last1=Salles |first1=R. |last2=Thoma |first2=O. |last3=Dupuis |first3=P. E. |last4=Cozzani |first4=A. |title=New Control System Of HYDRA 6DOF Shaker |journal=12th European Conference on Spacecraft Structures |url=https://ui.adsabs.harvard.edu/abs/2012ESASP.691E..48S/abstract |access-date=16 October 2022 |pages=48 |date=1 July 2012 |volume=691 |bibcode=2012ESASP.691E..48S}}

==External links==

* [https://web.archive.org/web/20140306051308/http://www.european-test-services.net/services-mechanical-Hydra-Vibration.html HYDRA Multi-Axis Vibration Facility of the European Space Agency]

[[Category:Transport safety]]

{{automotive-tech-stub}}

For higher payloads or frequencies hydraulic simulation tables are used.

Low frequency hydraulic simulation tables can easily reach 50 Hz, 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).