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US 7,404,334 B2Granted
Testing system with soft reaction structure
AssigneeMTS Systems Corporation
InventorsByron J. Saari, Craig L. Campbell
Life of this patent
Estimating the term…
Abstract
A testing system includes a soft reaction structure formed by column assemblies, a base and a crosshead. Compliant devices are disposed between the column assemblies and the base and/or the crosshead to isolate interaction of these components and reduce structural vibration mode excitation.
Claims35
A material testing system comprising:
- a base;
- a pair of column assemblies, each column assembly having a column extending upwardly along a vertical axis, each column having a vertical outer surface about its vertical axis and along its length;
- a crosshead joined to ends of the pair of column assemblies remote from the base;
- a pair of specimen holders, wherein a first specimen holder is supported by the base and a second specimen holder is supported by the crosshead;
- a compliant coupling for each column configured to selectively engage and provide compliance between the vertical outer surface of the column and at least one of the base and the crosshead, said compliance being along an axis orthogonal to the vertical axis.
2 more elements
A testing system comprising:
- a base;
- a pair of column assemblies extending upwardly;
- a crosshead joined to ends of the pair of column assemblies remote from the base;
- a pair of specimen holders, wherein a first specimen holder is supported by the base and a second specimen holder is supported by the crosshead;
- a compliant coupling that is configured selectively to couple each of the column assemblies and at least one of the base and the crosshead with compliance so as to reduce box mode excitation of the base, pair of column assemblies and the crosshead.
2 more elements
A testing system comprising:
- a base;
- a pair of column assemblies extending upwardly;
- a crosshead joined to ends of the pair of column assemblies remote from the base;
- a pair of specimen holders, wherein a first specimen holder is supported by the base and a second specimen holder is supported by the crosshead;
- a mechanism configured to selectively rigidly join each column assembly to the base or the crosshead;
- a first compliant coupling disposed between each of the column assemblies and at least one of the base and the crosshead and configured to provide compliance along an axis orthogonal to a vertical axis of each column assembly when the mechanism is not rigidly joining each column assembly to the base or the crosshead;
- and
- a second compliant coupling configured to support at least the weight of the crosshead.
5 more elements
Dependencies are inferred from the claim text.