Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/75002
Title: Damage identification of supporting structures with a moving sensory system
Authors: Zhu, XQ
Law, SS 
Huang, L 
Zhu, SY 
Keywords: Damage identification
Homotopy iteration algorithm
Interaction force
Moving sensor
Issue Date: 2018
Publisher: Academic Press
Source: Journal of sound and vibration, 2018, v. 415, p. 111-127 How to cite?
Journal: Journal of sound and vibration 
Abstract: An innovative approach to identify local anomalies in a structural beam bridge with an instrumented vehicle moving as a sensory system across the bridge. Accelerations at both the axle and vehicle body are measured from which vehicle-bridge interaction force on the structure is determined. Local anomalies of the structure are estimated from this interaction force with the Newton's iterative method basing on the homotopy continuation method. Numerical results with the vehicle moving over simply supported or continuous beams show that the acceleration responses from the vehicle or the bridge structure are less sensitive to the local damages than the interaction force between the wheel and the structure. Effects of different movement patterns and moving speed of the vehicle are investigated, and the effect of measurement noise on the identified results is discussed. A heavier or slower vehicle has been shown to be less sensitive to measurement noise giving more accurate results.
URI: http://hdl.handle.net/10397/75002
ISSN: 0022-460X
EISSN: 1095-8568
DOI: 10.1016/j.jsv.2017.11.032
Appears in Collections:Journal/Magazine Article

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