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eLibrary > BS ISO 10326-2:2022 - TC Tracked Changes. Mechanical vibration. Laboratory method for evaluating vehicle seat vibration - Application to railway vehicles >

BS ISO 10326-2:2022 - TC Tracked Changes. Mechanical vibration. Laboratory method for evaluating vehicle seat vibration - Application to railway vehicles, 2024

A-30380018.pdf [Go to Page]
undefined
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms [Go to Page]
3.1 Terms and definitions
3.2 Symbols and abbreviated terms
4 Direction of vibration
5 Characterization of vibration and of its transmission [Go to Page]
5.1 Characterization of vibration [Go to Page]
5.1.1 General
5.1.2 Root-mean-square acceleration, arms
5.1.3 Acceleration power auto spectral density, Gaa(f)
5.1.4 Acceleration cross spectral density, Gab(f)
5.2 Characterization of vibration transmission [Go to Page]
5.2.1 General
5.2.2 Frequency response function, H(f)
5.2.3 Coherence function,
5.2.4 Transmissibility, TR
5.2.5 Weighted transmissibility, TRw and SEAT factor
6 General observations
7 Measurement positions
8 Instrumentation
9 Safety requirements
10 Test seats and test persons [Go to Page]
10.1 Test seats
10.2 Test persons
11 Input test vibration [Go to Page]
11.1 General
11.2 Pseudo-random excitation [Go to Page]
11.2.1 Generation of the excitation signal
11.2.2 Power auto spectral density
11.2.3 Root-mean-square acceleration
11.2.4 Tolerances
11.2.5 Multi-axis excitation
11.3 Sinusoidal excitation
11.4 Realistic excitation representing the dynamic environment of the tested seat
12 Parameters adopted for characterizing the vibration transmission [Go to Page]
12.1 Pseudo-random and realistic excitations
12.2 Sinusoidal excitation
13 Test procedure [Go to Page]
13.1 Initial procedure
13.2 Tests under pseudo-random and realistic excitations
13.3 Tests under sinusoidal excitation
14 Test report [Go to Page]
14.1 Seat
14.2 Test persons
14.3 Measuring chain
14.4 Results
Annex A (informative) Example of excitation generating process
Annex B (informative) Realistic vibration excitation for seat testing
Bibliography [Go to Page]

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