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GB/T 29716.1-2013: Mechanical vibration and shock -- Signal processing -- Part 1: General introduction
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Mechanical vibration and shock -- Signal processing -- Part 1: General introduction
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GB/T 29716.1-2013
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Basic data | Standard ID | GB/T 29716.1-2013 (GB/T29716.1-2013) | | Description (Translated English) | Mechanical vibration and shock -- Signal processing -- Part 1: General introduction | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J04 | | Classification of International Standard | 17.160 | | Word Count Estimation | 20,218 | | Quoted Standard | ISO 2041-1990 | | Adopted Standard | ISO 18431-1-2005; IDT | | Regulation (derived from) | National Standards Bulletin No. 19 of 2013 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies: including physical units, including mathematical transformations, these transformations will impact all kinds of vibration data is converted into a room suitable for quantitative description and quantitative comparison of differen | GB/T 29716.1-2013: Mechanical vibration and shock -- Signal processing -- Part 1: General introduction
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Mechanical vibration and shock Signal processing Part 1. General introduction
ICS 17.160
J04
National Standards of People's Republic of China
Mechanical vibration and shock Signal Processing
Part 1. Introduction
Part 1. Generalintroduction
(ISO 18431-1.2005, IDT)
Issued on. 2013-09-18
2014-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 29716 "Mechanical vibration and shock Signal Processing", to be divided into the following sections.
--- Part 1. Introduction;
--- Part 2. Fourier transform of the time domain analysis window;
--- Part 3. bilinear joint time-frequency analysis methods;
--- Part 4. Shock response spectrum analysis;
--- Part 5. Time scale analysis.
This part of GB/T 29716 Part 1.
This section drafted in accordance with the rules of GB/T 1.1-2009 and GB/T 20000.2-2009 given.
This section uses the translation method identical with ISO 18431-1 "Mechanical vibration and shock - Signal processing - Part 1. Introduction."
This part of the National mechanical vibration, shock and condition monitoring Standardization Technical Committee (SAC/TC53) and focal points.
This section is drafted. Shanghai Jiaotong University, China Shipbuilding Industry Corporation seventh eleven Institute.
The main drafters of this section. Rao pillar, Chen Jin, Zhang Quannan, Dong Guangming, Zhou Ying.
Introduction
In recent years, with the widespread use of digital signal acquisition systems and computerized data processing equipment, almost all of the data analysis are through
Digitized data through mathematical operations to complete. Thus, data analysis is mainly digital signal processing.
Shock and vibration test data analysis should be considered as part of the experimental program staff. This process includes data from experimental design to comment
Assessment and understanding of all the steps.
Consider the effect of instrument sensitivity, this section assumes that the data has been sufficiently reduced. The data in this section are considered to be related to a physical
The amount of time sequence of samples as velocity, acceleration, displacement or force component. Experimental methods to obtain these data do not fall within the scope of this section.
Mechanical vibration and shock Signal Processing
Part 1. Introduction
1 Scope
This section GB/T 29716 defines the mathematical transformation include physical units, including, these transformations will impact various types of vibration data conversion
Into a room suitable for quantitative description and comparison of different experiments to quantify the form. It can be used for deterministic or random signals, transients or continuous signal
Vibration analysis. Various categories of signals are defined in Chapter 6.
We should attach great importance to correctly distinguish the type of signal being analyzed, so that the correct conversion and units, especially in terms of frequency domain analysis.
Data can be obtained on the mechanical structure of experimental measurements can be obtained from the numerical simulation of the mechanical structure. Due to the mechanical structure types
Diverse, such as microscopic instruments, musical instruments, cars, machinery, building and civil engineering structures, etc., so the data types involved are very extensive. through these
Data can be sure that the machine or a human response to mechanical vibration and shock.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member, undated references, the latest edition (including any amendments) applies to this document.
ISO 2041.1990 Vibration and shock - Vocabulary (Vibrationandshock-Vocabulary)
3 Terms and Definitions
As defined in ISO 2041 and the following terms and definitions apply to this document.
3.1
Diego Mixed aliasing
Misrepresented by spectral energy above the Nyquist frequency, and spectral components below the Nyquist frequency mixing caused.
3.2
Confidence Interval confidenceinterval
At a given probability, the true value range statistics exist.
3.3
Data data
A sampling of the physical measured value.
3.4
Statistics freedom statisticaldegreesoffreedom
Statistical probability estimate the number of independent variables.
3.5
Frequency resolution frequencyresolution
The frequency difference between two adjacent lines.
3.6
Line number numberoflines
It displays the number of lines.
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