I.S. EN 15610:2009
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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RAILWAY APPLICATIONS - NOISE EMISSION - RAIL ROUGHNESS MEASUREMENT RELATED TO ROLLING NOISE GENERATION
Hardcopy , PDF
30-11-2019
English
01-01-2009
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Measuring system requirements
5.1 General
5.2 Accuracy of the output signal
5.3 Dimensions of the probe
5.4 Tracking of the probe
5.5 Sampling interval
5.6 Record length
6 Data acquisition
6.1 General
6.2 Test section requirements
6.2.1 Track structure
6.2.2 Localized geometric features
6.3 Reference surface choice
6.4 Data sampling
6.4.1 General
6.4.2 Longitudinal sampling
6.4.3 Lateral sampling
6.5 Preparation of the rail head surface
6.6 Acoustic roughness acquisition
7 Data processing
7.1 Principle
7.2 Spike removal technique
7.3 Curvature processing
7.4 Spectral analysis
7.4.1 Method A: Fourier analysis
7.4.2 Method B: digital filtering
7.5 Procedure for extending the wavelength range
7.6 Averaging process
8 Acceptance criteria
9 Presentation of the data
10 Report
Annex A (informative) - Examples of rail defects
Annex B (informative) - Example of program code to
implement acoustic roughness processing
B.1 Purpose
B.2 Conditions of use
B.3 List of Matlab program files
B.4 Input data file requirements
B.5 Processing options
B.6 Spectral analysis
B.7 1/3 octave reporting
B.8 Output
B.9 Listing
B.9.1 file RoughProcess.m
B.9.2 21
B.9.3 file ruw_curve_rp.m
B.9.4 file noct_rp.m
Annex C (normative) - Algorithm used to synthesize a
one-third octave band spectrum from a
corresponding narrow band spectrum
Annex ZA (informative) - Relationship between this European
Standard and the Essential Requirements of EU
Directive EU 2008/57/EC
Bibliography
Describes a direct method for characterizing the surface roughness of the rail associated with rolling noise ("acoustic roughness"), in the form of a one-third octave band spectrum.
| DocumentType |
Standard
|
| Pages |
36
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| EN 15610:2009 | Identical |
| ISO 266:1997 | Acoustics — Preferred frequencies |
| EN 13848-1:2003+A1:2008 | Railway applications - Track - Track geometry quality - Part 1: Characterisation of track geometry |
| EN 13231-3:2012 | Railway applications - Track - Acceptance of works - Part 3: Acceptance of reprofiling rails in track |
| EN ISO 266:1997 | Acoustics - Preferred frequencies (ISO 266:1997) |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
| EN 61260:1995/A1:2001 | ELECTROACOUSTICS - OCTAVE-BAND AND FRACTIONAL-OCTAVE-BAND FILTERS |
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