cqu_455+ATTACHMENT03+ATTACHMENT03.4.pdf (888.41 kB)

Improving wagon running safety : predicting wagon instability in normal freight operations

Download (888.41 kB)
conference contribution
posted on 2017-12-06, 00:00 authored by Fujie XiaFujie Xia, Colin ColeColin Cole, Peter WolfsPeter Wolfs
The Cooperative Research Centre for Railway Engineering and Technologies has a research project focused upon developing low cost vehicle ride quality detection systems. This paper presents the development of a device which gives indications of wheel unloading and L/V offering both warnings and the opportunity for prevention of derailment. A vehicle based instability prediction system has been developed using measured accelerations of the wagon body as inputs to an inverse wagon model. Numerical integration of the system is then used to get the kinematic quantities of wheelsets. The vertical wheel-rail interface force can be determined by the sum of Hertzian spring and damping forces between wheel and rail. The lateral wheel rail force is then determined by Kalker’s theory. A laboratory test was designed to compare the results between inverse model and measurement. Results show the estimated results match well with the results from laboratory test. Additional validation was also achieved by comparison with wagon simulations developed using VAMPIRE.


Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)


Parent Title

Proceedings of the Conference On Railway Engineering : Rail Achieving Growth.

Start Page


End Page


Number of Pages


Start Date





Melbourne, Vic.



Place of Publication

Melbourne, Vic.

Peer Reviewed

  • Yes

Open Access

  • No

External Author Affiliations

Centre for Railway Engineering; TBA Research Institute;

Era Eligible

  • Yes

Name of Conference

Conference on Railway Engineering