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RISIdentification of Frequencies and Track Irregularities of Railway Bridges Using Vehicle Responses: A Recursive Bayesian Kalman Filter Algorithm
Publisher: ASCE
Abstract: On-board monitoring of track irregularities and bridge dynamic characteristics based on vehicle vibration responses provides basic data for the condition assessment of high speed railway bridges. However, the identification ...
Analytical Study on Response Power Spectral Density of Structures Subjected to Nonstationary Excitation Considering Transient Responses
Publisher: ASCE
Abstract: Computing the response power spectral densities (PSDs) of structures from the excitation PSDs has always been a classical problem in structural random vibration. Conventional analytical methods ignore the frequency ...
Multiobjective Optimization of Double-Wall Cooling Structure of Integrated Strut Flame Stabilizer and Sensitivity Analysis of Parameters
Publisher: ASCE
Abstract: The thermal environment behind the integrated strut of the afterburner is very harsh. A double-wall structure is set at the integrated strut flame stabilizer for cooling. The multiobjective optimization of the double-wall ...
Track Irregularity Monitoring on High-Speed Railway Viaducts: A Novel Algorithm with Unknown Input Condensation
Publisher: ASCE
Abstract: The inverse dynamic analysis of vehicle-bridge (VB) systems provides a superior scheme for track irregularity identification using the onboard measurement data of vehicle dynamic responses. However, available algorithms ...