QUT ePrints

A MOM-based algorithm for moving force identification: Part II - Experiment and comparative studies

Yu, Ling , Chan, Tommy H.T., & Zhu, Jin-hua (2008) A MOM-based algorithm for moving force identification: Part II - Experiment and comparative studies. Structural Engineering and Mechanics, 29(2), pp. 155-169.

[img] Published Version (PDF 1MB)
Administrators only | Request a copy from author

View at publisher

Abstract

A MOM-based algorithm (MOMA) has been developed for moving force identification from dynamic responses of bridge in the companion paper. This paper further evaluates and investigates the properties of the developed MOMA by experiment in laboratory. A simply supported bridge model and a few vehicle models were designed and constructed in laboratory. A series of experiments have then been conducted for moving force identification. The bending moment and acceleration responses at several measurement stations of the bridge model are simultaneously measured when the model vehicle moves across the bridge deck at different speeds. In order to compare with the existing time domain method (TDM), the best method for moving force identification to date, a carefully comparative study scheme was planned and conducted, which includes considering the effect of a few main parameters, such as basis function terms, mode number involved in the identification calculation, measurement stations, executive CPU time, Nyquist fraction of digital filter, and two different solutions to the ill-posed system equation of moving force identification. It was observed that the MOMA has many good properties same as the TDM, but its CPU execution time is just less than one tenth of the TDM, which indicates an achievement in which the MOMA can be used directly for real-time analysis of moving force identification in field.

Impact and interest:

7 citations in Scopus
Search Google Scholar™
6 citations in Web of Science®

Citation countsare sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 18951
Item Type: Journal Article
Keywords: moving force identification, method of moments (MOM), bridge loads, time domain method (TDM), dynamic responses, BRIDGE STRAINS, REGULARIZATION;
ISSN: 1225-4568
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2008 Techno-Press
Deposited On: 25 Mar 2009 15:44
Last Modified: 29 Feb 2012 23:52

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page