Generalised formulation of composite filters and their application to earthquake engineering test systems

David Paul Stoten*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

2 Citations (Scopus)
218 Downloads (Pure)

Abstract

This paper addresses the problem of generating unmeasured kinetic data-and/or providing improvements in existing data-for the enhancement of performance characteristics of earthquake engineering test systems, such as shaking tables, reaction walls and other custom-made test rigs. The approach relies upon the use of composite filters (CF), a method of data fusion that was originally conceived via transfer function formulation. The current work generalises the CF concept and extends its formulation into the state-space domain, thereby providing a wider basis for application to test systems and their controllers, including those of a multivariable (coupled, multi-axis) nature. Comparative simulation studies of shaking table control are presented that demonstrate the design techniques for state-space CF and also their effectiveness for signal synthesis, noise suppression and performance improvement. Specific examples include the use of CF for displacement demand signal generation, velocity feedback generation and acceleration control. In each case, the essential principles behind CF-output signals with zero bias and zero drift-are consistently upheld.

Original languageEnglish
Pages (from-to)2619–2635
Number of pages17
JournalEarthquake Engineering and Structural Dynamics
Volume46
Issue number14
Early online date20 Jun 2017
DOIs
Publication statusPublished - Nov 2017

Keywords

  • Advanced testing
  • Automatic control
  • Composite filters

Fingerprint

Dive into the research topics of 'Generalised formulation of composite filters and their application to earthquake engineering test systems'. Together they form a unique fingerprint.

Cite this