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**Harvard**

Zhang, X. (2006) *2. Applying the TSI formulae together with the multiple-interpolations method to determine track decay rates using train pass-by measurements (in06_55*.

** BibTeX **

@conference{

Zhang2006,

author={Zhang, Xuetao},

title={2. Applying the TSI formulae together with the multiple-interpolations method to determine track decay rates using train pass-by measurements (in06_55},

booktitle={Inter-Noise 2006, 3-6 December 2006, Honolulu, Hawaii, USA},

abstract={In the TSI document a reliable method to determine track decay rates has been provided. The method consists of acquiring mechanical FRF data at a track site, post-processing the measured data, and the presenting the estimate. The calculation formulae of the TSI method assume that vibration waves in the rail can be measured as a single propagating vertical bending wave and a single propagating lateral bending wave of the rail acting as a simple beam.
This paper is to report the possibility to apply the TSI formulae to determine track decay rates using train pass-by measurements. The simulation calculations have shown that (1) the data interpolation can be done accurately provided that the assumptions behind the TSI formulae are good approximations; thus (2) the data interpolation can further be done as many times as the accuracy requires and the calculation error will then become any small. Using the measured train pass-by data, in which some other types of waves and/or the cross interactions between the different banding waves may have some effect but small, the track decay rates determined using the TSI formulae and the multiple-interpolations method seem to be trustworthy.
},

year={2006},

}

** RefWorks **

RT Conference Proceedings

SR Print

ID 25666

A1 Zhang, Xuetao

T1 2. Applying the TSI formulae together with the multiple-interpolations method to determine track decay rates using train pass-by measurements (in06_55

YR 2006

T2 Inter-Noise 2006, 3-6 December 2006, Honolulu, Hawaii, USA

AB In the TSI document a reliable method to determine track decay rates has been provided. The method consists of acquiring mechanical FRF data at a track site, post-processing the measured data, and the presenting the estimate. The calculation formulae of the TSI method assume that vibration waves in the rail can be measured as a single propagating vertical bending wave and a single propagating lateral bending wave of the rail acting as a simple beam.
This paper is to report the possibility to apply the TSI formulae to determine track decay rates using train pass-by measurements. The simulation calculations have shown that (1) the data interpolation can be done accurately provided that the assumptions behind the TSI formulae are good approximations; thus (2) the data interpolation can further be done as many times as the accuracy requires and the calculation error will then become any small. Using the measured train pass-by data, in which some other types of waves and/or the cross interactions between the different banding waves may have some effect but small, the track decay rates determined using the TSI formulae and the multiple-interpolations method seem to be trustworthy.

LA eng

OL 30