GB/T 13310-2007 English PDF (GBT13310-2007)

This Standard specifies the general requirements, basic parameters, technical requirements, inspection methods, inspection rules and others of electrodynamic vibration generator systems.

GB/T 13310-2007
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 19.060
N 73
Replacing GB/T 13310-1991
Electrodynamic vibration generator systems
ISSUED ON. OCTOBER 11, 2007
IMPLEMENTED ON. DECEMBER 01, 2007
Issued by.
General Administration of Quality Supervision, Inspection
and Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Vibration-generator-systems’ composition ... 6
5 Basic parameters and parameter series ... 7
6 Technical conditions ... 7
7 Inspection rules ... 11
8 Inspection rules ... 21
9 Mark and packaging ... 21
10 Accompanying technical documents ... 22
Foreword
This Standard is a revision to GB/T 13310-1991 Specification for electrodynamic vibration generator systems.
This Standard non-equivalently adopts the requirements for test equipment in IEC 60068-2-6.1995 Environment test - Part 2. Test method - Test Fc. Vibration (sinusoidal). The electrodynamic vibration generator systems that are manufactured according to this Standard shall also meet the requirements for vibration test equipment in MIL-STD-810F Environmental engineering consideration and laboratory test.
This Standard replaces GB/T 13310-1991 Specification for electrodynamic vibration generator systems. Compared with GB/T 13310-1991, the main differences of this Standard are as follows.
- Change the Standard name to be electrodynamic vibration generator systems; - Compile the Standard according to the requirements of structure and format in GB/T1.1-2000 Directives for Standardization - Part 1. Rules for the structure and drafting of Standards; adjust the structure;
- Add an foreword;
- The applicable scope of this Standard is changed to be “apply to vibration generator systems for test with rated excitation force under sinusoidal conditions or random excitation force being not more than 200 kN.” (Chapter 1 in version 1991; Chapter 2 in this version) from “apply to vibration generator systems for test with rated excitation force under sinusoidal conditions being 50 kN or less than 50 kN”; - Add terms and definitions (see Chapter 3);
- Add rated random excitation forces in basic parameters [see 5.1 b)];
- Add parameter series for vibration generator systems in basic parameters [see 5.2)]; - Technical requirements are divided into sinusoidal vibration and random vibration for vibration generator systems; in sinusoidal vibration, the table-surface transverse movement ratio, acceleration distortion and table-surface acceleration amplitude uniformity are all increased with vibration generator system indicators being more than 50 kN. Add technical requirements to random vibration for vibration generator systems (see 6.2 and 6.3);
- Add requirements to electrical safety, safety protection and auxiliary cooling devices of vibration generator systems (see 6.4);
Electrodynamic vibration generator systems
1 Scope
This Standard specifies the general requirements, basic parameters, technical requirements, inspection methods, inspection rules and others of electrodynamic vibration generator systems (hereinafter referred to as vibration-generator-systems). This Standard applies to vibration-generator-systems for test with rated excitation force under sinusoidal conditions or random excitation force being not more than 200 kN. For vibration-generator-systems with excitation force being more than 200 kN, an agreement shall be made by the user and manufacturer or the supplier through negotiation according to this Standard.
2 Normative references
The articles contained in the following documents have become part of this document when they are quoted herein. For the dated documents so quoted, all subsequent modifications (including all corrections) or revisions made thereafter do not apply to this Standard. However, the parties who reach an agreement according to this Standard are encouraged to study whether the latest versions of these documents may be used. For the undated documents so quoted, the latest versions (including all modification sheets) apply to this document.
GB/T 2298 Mechanical vibration and shock - Terminology (GB/T 2298-1991, neq ISO 2041.1990)
GB/T 2611-2007 General requirements for testing machines
JB/T 6147-2007 Requirements for the packaging marking and handling of testing machine products
3 Terms and definitions
For the purpose of this document, the terms and definitions established in GB/T 2298 shall apply.
3.1
Rated mass
The maximum test mass specified in relevant technical documents.
3.2
Rated excitation force under sinusoidal conditions
The minimum value in all maximum excitation force under sinusoidal conditions under different test masses.
3.3
Rated sinusoidal acceleration
The maximum acceleration allowed by the table-surface under normal work. 3.4
Limit characteristic
The limit value of the displacement-speed-acceleration that changes along with different test masses; it is usually expressed by limit curve.
3.5
Rated frequency range
Limit characteristic curve range from the minimum frequency to the maximum frequency. 3.6
Rated random excitation force
The minimum value of random excitation force under any test mass. This force corresponds to the power spectral density of constant acceleration between the upper frequency limit and the lower frequency limit.
4 Vibration‐generator‐systems’ composition
One vibration-generator-systems is composed by the following parts.
a) vibration-generator-systems body;
b) Power amplifier;
c) Vibration control instrument (can be configured according to requirements of the user);
d) Cooling fan or heat exchanger and other auxiliary equipment.
c) The change of power supply voltage is within ±10% of the rated voltage. 6.2 Sinusoidal vibration
6.2.1 Frequency indication error
Within the specified frequency range, the frequency of the vibration-generator-systems can be adjusted continuously and the frequency indication error is.
- When 5 Hz ≤f≤50 Hz, the maximum allowable value is ±1 Hz;
- When f>50 Hz, the maximum allowable value is ±2% f.
f is the actual vibration frequency of vibration-generator-systems.
6.2.2 Indication errors of acceleration, speed and displacement
Within the specified frequency range, the acceleration of vibration-generator-systems can be adjusted. The maximum allowable error of acceleration indication is ±10% and the maximum allowable error of speed and displacement indications is ±15%.
6.2.3 Table-surface transverse movement ratio
When one vibration-generator-systems works, its table-surface transverse movement ratio shall meet requirements in Table 2.
Note. Transverse movement ratio is the ratio between transverse acceleration and axial acceleration.
Table 2 Table-surface transverse movement ratio
Excitation force is not more than 50 kN Excitation force is more than 50 kN Frequency range
Hz
Transverse movement ratio
Frequency range
Hz
Transverse movement ratio
5≤f< 500 ≤15 5≤f< 500 ≤15
500≤f≤2 000 ≤25 500≤f≤1 500 ≤25
Within the specified frequency range, it is allowed to have 1~2 frequency bands with large transverse movement. Within this frequency band, the maximum transverse movement ratio is not more than 50%; the maximum transverse movement ratio of one vibration-generator-systems with excitation force being more than 50 kN within this frequency band is not more than 100%, and the frequency bandwidth does not exceed ±10% of corresponding frequency of transverse movement ratio.
6.2.4 Acceleration waveform distortion
When the vibration-generator-systems works normally, the waveform distortion of the table-surface acceleration shall meet requirements of Table 3.
The signal-to-noise ratio of the table-surface acceleration of vibration-generator-systems shall be more than 60 dB.
6.2.8 Frequency sweep rate and frequency sweep accuracy
The vibration-generator-systems sweeps the frequency back and forth to data or displacement at certain speed and certain acceleration within specified frequency range; the frequency-sweep rate can be adjusted. The maximum allowable error of the frequency-sweep rate is ±10%; the accuracy of frequency sweep to determine the vibration is less than 2 dB.
6.3 Random vibration
6.3.1 Dynamic range of acceleration control spectrum for random vibration The dynamic range of random acceleration power spectrum control for
vibration-generator-systems (set the spectrum dynamic range 40 dB) shall not be less than 35 dB.
6.3.2 Root mean square value of acceleration indication error
The maximum allowable error of the root mean square value of random acceleration indication of vibration-generator-systems is ±10%.
6.3.3 The ratio R between the root mean square value of acceleration outside the work frequency...