Theoretical and Numerical Examination of a Novel Method for Identifying Bridge Moving Force Using an Instrumented Vehicle

This study presents a novel and highly efficient technique to identify moving forces by utilising the acceleration response of an instrumented vehicle. The complex task determining is transformed into one solving linear equations, made easier through Newmark-β method. To overcome ill-conditioned problem improve recognition accuracy, Tikhonov regularisation employed. Uniquely, this approach necessitates placement sensors on vehicle alone record responses vehicle–bridge coupled system as it traverses bridge. Once are acquired, force quickly identified using proposed reliability method numerically verified case single degree-of-freedom crossing simply supported beam. performance further demonstrated examining several typical external factors. results indicate that high demonstrating good robustness even amidst substantial environmental noise interference. offers new perspective for identifying small- medium-span bridges.