Bridge Frequency Scanning Using the Contact-Point Response of an Instrumented 3D Vehicle: Theory and Numerical Simulation
نویسندگان
چکیده
Scanning the bridge’s frequencies from passing vehicle’s vibration data has been frequently investigated recently. However, in previous studies, vehicles were typically simplified to quarter- or half-car models, and apparent disparity could be observed between models real vehicles. To make vehicle model more practical, this study, a 3D is built extract vibrations. For first time, equations for calculating contact-point (CP) response of are derived with tire damping. Furthermore, residual CP responses front rear wheels utilized eliminate inverse effects road roughness, making bridge outstanding frequency domain. The robustness proposed method tested under different influence factors, two possible measurement errors as follows: sensor position axle distance when applying engineering. Results show that performs stably roughness classes Bridge can identified travelling at highway speed (108 km/h study). Environmental noises submerge high-order but have little on low-frequency range. High damping will restrain transmission vehicle, less visible. In addition, introduced by body eliminated tires, thus not identification. avoid induced manual distance, novel cross-correlation function-based employed, which verified effective practical responses.
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ژورنال
عنوان ژورنال: Structural control & health monitoring
سال: 2023
ISSN: ['1545-2263', '1545-2255']
DOI: https://doi.org/10.1155/2023/3924349