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Stability and accuracy analysis of the central difference method for real‐time substructure testing

Wu, B. / Bao, H. / Ou, J. / Tian, S.

10.1002/eqe.451.abs

The central difference method (CDM) that is explicit for pseudo‐dynamic testing is also believed to be explicit for real‐time substructure testing (RST). However, to obtain the correct velocity dependent restoring force of the physical substructure being tested, the target velocity is required to be calculated as well as the displacement. The standard CDM provides only explicit target displacement but not explicit target velocity. This paper investigates the required modification of the standard central difference method when applied to RST and analyzes the stability and accuracy of the modified CDM for RST. Copyright © 2005 John Wiley & Sons, Ltd.

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Stability and accuracy analysis of the central difference method for real‐time substructure testing

Wu, B. / Bao, H. / Ou, J. / Tian, S.

10.1002/eqe.451.abs

The central difference method (CDM) that is explicit for pseudo‐dynamic testing is also believed to be explicit for real‐time substructure testing (RST). However, to obtain the correct velocity dependent restoring force of the physical substructure being tested, the target velocity is required to be calculated as well as the displacement. The standard CDM provides only explicit target displacement but not explicit target velocity. This paper investigates the required modification of the standard central difference method when applied to RST and analyzes the stability and accuracy of the modified CDM for RST. Copyright © 2005 John Wiley & Sons, Ltd.

Stability and accuracy analysis of the central difference method for real‐time substructure testing

Wu, B. / Bao, H. / Ou, J. / Tian, S.

10.1002/eqe.451.abs

The central difference method (CDM) that is explicit for pseudo‐dynamic testing is also believed to be explicit for real‐time substructure testing (RST). However, to obtain the correct velocity dependent restoring force of the physical substructure being tested, the target velocity is required to be calculated as well as the displacement. The standard CDM provides only explicit target displacement but not explicit target velocity. This paper investigates the required modification of the standard central difference method when applied to RST and analyzes the stability and accuracy of the modified CDM for RST. Copyright © 2005 John Wiley & Sons, Ltd.

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Title:

Stability and accuracy analysis of the central difference method for real‐time substructure testing

Contributors:

Wu, B. (author) / Bao, H. (author) / Ou, J. (author) / Tian, S. (author)

Published in:

Earthquake Engineering & Structural Dynamics ; 34 ; 705-718

Publication date:

2005-06-01

Size:

14 pages

ISSN:

1096-9845 , 0098-8847

DOI:

https://doi.org/10.1002/eqe.451

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

accuracy , stability , real‐time , substructure testing , central difference method

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