I.S. EN 15433-4:2007
Current
The latest, up-to-date edition.
TRANSPORTATION LOADS - MEASUREMENT AND EVALUATION OF DYNAMIC MECHANICAL LOADS - PART 4: DATA EVALUATION
Hardcopy , PDF
English
01-01-2007
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.
Dates of withdrawal of national standards are available from NSAI.
Foreword
Introduction
1 Scope
2 Normative references
3 Measured signals
3.1 Instantaneous values
3.2 Average values
3.2.1 General
3.2.2 Instruments and software
3.2.3 Types of averaging
3.2.4 Averaging time and sampling errors
3.3 Synchronous averaging
3.3.1 General
3.3.2 Instruments and software
3.3.3 Triggering procedures
3.3.4 Signal-to-noise enhancement
3.4 Filtered signals
3.4.1 General
3.4.2 Analogue filtering
3.4.3 Digital filtering
4 Data classification
4.1 General
4.2 Time dependence
4.2.1 General
4.2.2 Stationary or steady-state data
4.2.3 Non-stationary data
4.2.4 Transient data
4.2.5 Physical considerations
4.3 Randomness
4.3.1 General
4.3.2 Identification of periodic components
4.3.3 Separation of random and periodic components
4.4 Normality
4.4.1 General
4.4.2 Test for normality
4.4.3 Spurious deviations from normality
5 Single channel spectral analysis/periodic and random data
5.1 FFT algorithms
5.1.1 General
5.1.2 Number of data values
5.1.3 Redundant components
5.1.4 Leakage and tapering
5.1.5 Spectral bandwidth
5.2 Periodic data
5.2.1 General
5.2.2 Instruments and software
5.2.3 Anti-aliasing filters
5.2.4 Leakage and tapering
5.2.5 Frequency resolution
5.2.6 Resolution error corrections
5.2.7 Statistical sampling errors
5.2.8 Plotting
5.3 Stationary random data
5.3.1 General
5.3.2 Instruments and software
5.3.3 Anti-aliasing filters
5.3.4 Leakage and tapering
5.3.5 Frequency resolution
5.3.6 Resolution error corrections
5.3.7 Statistical sampling errors
5.3.8 Overlapped processing
5.3.9 Zoom transforms
5.3.10 Plotting
5.4 Non-stationary data
5.4.1 General
5.4.2 Random signals
5.4.3 Time codes
5.5 Proportional bandwidth spectra
5.5.1 General
5.5.2 1/3-octave band spectra
5.5.3 Other proportional bandwidth spectra
6 Single channel spectral analysis/transient data
6.1 General
6.2 Fourier spectra
6.2.1 General
6.2.2 Instruments and software
6.2.3 Anti-aliasing filters
6.2.4 Leakage and tapering
6.2.5 Frequency resolution
6.2.6 Resolution error corrections
6.2.7 Statistical sampling errors
6.2.8 Plotting
6.3 Energy spectra
6.3.1 General
6.3.2 Instruments and software
6.3.3 Anti-aliasing filters
6.3.4 Leakage and tapering
6.3.5 Frequency resolution
6.3.6 Resolution error corrections
6.3.7 Statistical sampling errors
6.3.8 Plotting
6.4 Shock response spectra (SRS)
6.4.1 General
6.4.2 Interpretation of SRS results
6.4.3 Presentation of SRS results
6.4.4 Instruments and software
6.4.5 Anti-aliasing filters
6.4.6 Sampling rate
6.4.7 Truncation error
6.4.8 Initial conditions
6.4.9 Frequency resolution
6.4.10 Resolution error corrections
6.4.11 Statistical sampling errors
6.4.12 Plotting
6.4.13 Other SRS computations
7 Dual channel analysis
7.1 General
7.2 Cross-spectra
7.2.1 General
7.2.2 Instruments and software
7.2.3 Anti-aliasing filters
7.2.4 Leakage and tapering
7.2.5 Frequency resolution
7.2.6 Resolution error corrections
7.2.7 Time delay bias error
7.2.8 Multiple path (reverberation) bias error
7.2.9 Statistical sampling errors
7.2.10 Overlapped processing
7.2.11 Zoom transforms
7.2.12 Plotting
7.3 Coherence
7.3.1 General
7.3.2 Instruments and software
7.3.3 Anti-aliasing filters
7.3.4 Leakage and tapering
7.3.5 Frequency resolution
7.3.6 Time delay bias errors
7.3.7 Multiple path (reverberation) errors
7.3.8 Statistical sampling errors
7.3.9 Overlapped processing
7.3.10 Zoom transforms
7.3.11 Plotting
7.4 Frequency response
7.4.1 General
7.4.2 Instruments and software
7.4.3 Anti-aliasing filters
7.4.4 Leakage and tapering
7.4.5 Frequency resolution
7.4.6 Statistical sampling errors
7.4.7 Overlapped processing
7.4.8 Zoom transforms
7.4.9 Plotting
7.5 Cross-correlation
7.5.1 General
7.5.2 Instruments and software
7.5.3 Anti-aliasing filters
7.5.4 Leakage and tapering
7.5.5 Time resolution
7.5.6 Time delay bias error
7.5.7 Statistical sampling errors
7.5.8 Overlapped processing
7.5.9 Plotting
7.6 Correlation coefficient
7.7 Unit impulse response
8 Other analysis
8.1 General
8.2 Probability density
8.2.1 General
8.2.2 Instantaneous probability density
8.2.3 Peak probability density
Bibliography
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.