BS EN 12299:2009
Current
The latest, up-to-date edition.
Railway applications. Ride comfort for passengers. Measurement and evaluation
Hardcopy , PDF
English
05-31-2009
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols, units and abbreviations
5 General description
5.1 General
5.2 Passenger exposure to vibrations
5.3 Application
5.4 Characteristics of railway vehicle motions
5.5 Ride comfort
5.6 Direct and indirect measurements
5.7 Summary table of procedures
5.8 Application of comfort indices
6 Mean Comfort and Continuous Comfort
6.1 General
6.2 Base of the method
6.3 Methodology
6.4 Test conditions
6.4.1 General
6.4.2 Selection of test sections
6.4.3 Test speed
6.4.4 Wheel-rail contact geometry
6.4.5 Vehicle condition
6.5 Parameters to be measured
6.5.1 General
6.5.2 Location of measuring points
6.5.3 Filtering
6.6 Definition of intermediate quantities
6.6.1 Symbols and indices
6.6.2 Rms-values of weighted accelerations
6.6.3 95th and 50th percentiles
6.7 Definition of comfort indexes
6.7.1 Continuous Comfort
6.7.2 Mean Comfort Standard Method
6.7.3 Mean Comfort Complete Method
6.8 Test report
7 Comfort on Curve Transitions
7.1 General
7.2 Base of the method
7.3 Methodology
7.4 Test conditions
7.4.1 General
7.4.2 Selection of test sections
7.4.3 Test speed
7.4.4 Wheel-rail contact geometry
7.4.5 Vehicle condition
7.5 Parameters to be measured
7.5.1 General
7.5.2 Location of measuring points
7.5.3 Filtering
7.6 Definition of intermediate quantities
7.6.1 Symbols and indices
7.6.2 Averaging procedure
7.6.3 Identification of transition periods
7.6.4 Intermediate quantities
7.7 Definition of comfort index P[CT]
7.8 Test report
7.9 Example diagrams
8 Comfort on Discrete Events
8.1 General
8.2 Base of the method
8.3 Methodology
8.4 Test conditions
8.4.1 General
8.4.2 Selection of test sections
8.4.3 Test speed
8.4.4 Wheel-rail contact geometry
8.4.5 Vehicle condition
8.5 Parameters to be measured
8.5.1 General
8.5.2 Location of measuring points
8.5.3 Filtering
8.6 Definition of intermediate quantities
8.6.1 Symbols and indices
8.6.2 Averaging procedure
8.6.3 Intermediate quantities
8.7 Definition of comfort index P[DE]
8.8 Test report
8.9 Example diagrams
9 Guide for the interpretation of the results (Informative)
9.1 General
9.2 Mean Comfort
9.3 Continuous Comfort
9.4 Comfort on Curve Transitions
9.5 Comfort on Discrete Events
Annex A (normative) Reference system
Annex B (normative) Measurement techniques
B.1 General
B.2 Measuring equipment
B.2.1 General
B.2.2 Accelerometers and processing amplifiers
B.2.3 Recording equipment
B.2.4 Fixing transducers to the floor
B.3 Seat measuring devices and their applications
Annex C (normative) Weighting curves
C.1 General
C.2 Filter functions
C.2.1 General
C.2.2 Band-limiting filter
C.2.3 Acceleration to velocity transition
C.2.4 Upward gradient
C.2.5 Overall frequency weighting
C.2.6 Reduction of the upper limit of the frequency
range in vertical direction
C.3 Tolerances
C.4 Diagrams
Annex D (informative) Presentation of test report
D.1 General
D.2 Aim of test
D.3 Test performer
D.4 References
D.5 Test conditions
D.5.1 General information
D.5.2 Vehicle
D.5.3 Seat (for Mean Comfort Complete Method)
D.5.4 Seat occupant (for Mean Comfort Complete Method)
D.5.5 Track
D.5.6 Speed profile
D.5.7 Test configurations
D.6 Measurements and processing
D.6.1 Measurements
D.6.2 Processing
D.7 Report on Mean Comfort and Continuous Comfort
D.7.1 General
D.7.2 Time series
D.7.3 Statistical results
D.7.4 Comfort evaluation
D.7.5 Spectral analyses
D.7.6 Examples of diagrams
D.8 Report on comfort in curve transitions
D.9 Reporting on Comfort on Discrete Events
Annex E (normative) Vehicle assessment with respect to Mean
Comfort Standard Method
E.1 General
E.2 Track geometric quality
E.3 Test conditions
E.3.1 Selection of test sections and test zones
E.3.2 Test speed
E.3.3 Wheel-rail contact geometry
E.3.4 Vehicle condition
E.4 Acceptable modifications of the methods for Mean
Comfort evaluation
E.5 Test report
Annex F (informative) Guideline for the application of direct
tests
Annex G (informative) Workflow for numerical integration
Annex H (informative) Determining quantities
Bibliography
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