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dc.contributor.authorXia, F.
dc.contributor.authorCole, C.
dc.contributor.authorWolfs, Peter
dc.identifier.citationXia, Fujie and Cole, Colin and Wolfs, Peter. 2007. An inverse railway wagon model and its applications. Vehicle System Dynamics. 45 (6): pp. 583-605.

An inverse wagon model was developed to estimate wheel-rail contact forces using only measurements of wagon body responses as inputs. The purpose of this work was to provide mathematical modelling to embed in low-cost devices that can be mounted on each freight wagon in a large wagon fleet. To minimize cost, complication, and the maintenance inconvenience of these devices, the constraint is imposed that transducers and connections are limited to locations on the wagon body. Inputs to the inverse model developed include only vertical and lateral translational accelerations and angular accelerations of roll, pitch, and yaw of the wagon body. The model combines the integration and partial modal matrix (PMM) techniques together to form an IPMM method. Besides wheel-rail contact forces some motion quantities such as the lateral and yaw displacements of wheelset are also predicted. Results from the inverse model were compared with data from full scale laboratory suspension tests for vertical suspension excitations. The inverse model was also compared with results from simulations completed in VAMPIRE for more complicated track input profiles. The model results and the applications of the model are discussed.

dc.publisherTaylor & Francis
dc.subjectInverse wagon model
dc.subjectWagon body accelerations
dc.subjectWheel-rail contact forces
dc.subjectForward wagon model
dc.titleAn inverse railway wagon model and its applications
dc.typeJournal Article
dcterms.source.titleVehicle system Dynamics
curtin.accessStatusFulltext not available
curtin.facultyDepartment of Electrical and Computer Engineering
curtin.facultySchool of Engineering
curtin.facultyFaculty of Science and Engineering

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