On the coherency of dynamic load estimates for vehicles on flexible structures

This paper develops a novel form of a well-known signal processing technique, so as to be applicable to the interaction between a heavy truck and a supporting bridge structure. Motivated by the problem of structural health monitoring of bridges, a new modal coherency function is defined. This relates the input action of moving wheel loads to the dynamic response of the bridge, including the effects of unevenness of the road surface and the vertical dynamics of the truck suspension. The analysis here is specifically aimed at future experimental testing – the validation of axle load estimators obtained from sensors on the truck. It is applicable even when no independent ‘ground truth’ for the dynamic loads is available. The approach can be more widely used in the analysis of dynamic interactions involving suspended moving loads on deformable structures, e.g. for structural vibrations due to high-speed trains.

• Record URL:
  • https://doi.org/10.1080/00423114.2014.898778
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00423114
• Supplemental Notes:
  • Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Mitra, Mainak
  • Gordon, Timothy
• Conference:
  • 23rd Symposium of the International Association of Vehicle System Dynamics
  • Location: Qingdao , China
  • Date: 2013-8-19 to 2013-8-23
• Publication Date: 2014-5

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: pp 299-316
• Serial:
  • Vehicle System Dynamics
  • Volume: 52
  • Issue Number: sup1
  • Publisher: Taylor & Francis
  • ISSN: 0042-3114
  • EISSN: 1744-5159
  • Serial URL: https://www.tandfonline.com/toc/nvsd20/current

Subject/Index Terms

• TRT Terms: Dynamic loads; Flexible structures; Heavy vehicles; Highway bridges; Modal analysis; Motor vehicle dynamics; Signal processing; Trucks
• Subject Areas: Bridges and other structures; Motor Carriers; Vehicles and Equipment; I24: Design of Bridges and Retaining Walls; I90: Vehicles;

Filing Info

• Accession Number: 01527923
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 9 2014 1:22PM