GB/T 21116-2007Hydraulic vibration generator systems (English PDF)
液压振动台
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 11, 2007
Implementation date
December 1, 2007
Scope
GB/T 21116-2007 is the English-translated version of 液压振动台.
GB/T 21116-2007 covers hydraulic vibration generator systems, which the draft calls hydraulic shakers.
Clause 1 states that the standard specifies the basic parameters, technical requirements, test methods and inspection rules of the hydraulic shaker, and that it applies to hydraulic vibration tables whose rated sinusoidal excitation force is not more than 1000 kN, called shakers for short.
The draft shows clause 1 Scope, clause 2 Normative references and clause 3 Terms and Definitions and breaks off at the end of clause 3, so none of the parameter, requirement or test clauses the scope announces appear on the page.
Clause 2 cites GB/T 2298, GB/T 2611-2007, GB/T 10179-1988 and JB/T 6147-2007.
Clause 3 carries seven definitions whose term names the draft does not print: the maximum test load specified in the relevant technical documentation; the maximum sinusoidal excitation force under rated test load; the maximum acceleration at rated excitation force and rated load; the acceleration limit as it varies with frequency under rated test load, usually given as a limit curve; the range of that limit characteristic curve from its lowest to its highest frequency; the maximum control accuracy measured at each scanning point at 80 percent of the rated fixed vibration acceleration at a scanning speed of one octave per minute; and, at rated load, the maximum centrifugal force reachable at a set uniform acceleration power spectral density, a definition the draft leaves unfinished.
The foreword records that the standard is not equivalent to IEC 60068-2-6 1995 as regards test equipment, that hydraulic shakers manufactured in accordance with it meet the vibration test equipment requirements of MIL-STD-810F, and that it was developed on the basis of the machinery industry standard JB/T 8288-2001, which expires automatically once this standard is implemented.
It also records that some of the content may involve patents for which the issuing body assumes no identification responsibility, that the standard was proposed by the China Machinery Industry Federation, that it is administered by SAC/TC122, and that GB/T 13309-2007 and GB/T 13310-2007 are the related national standards for other types of shaker.
The foreword states that this is the first release of the standard, so it replaces no earlier edition; it was issued on 11 October 2007 and has applied since 1 December 2007.
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Document preview — GB/T 21116-2007
National Standard of the People's Republic of China
- ICS
- 19.060
- Classification
- N 73
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions GB/T 2298 and established the following
Foreword
This standard is not equivalent to IEC 60068-2-6:1995 "Environmental testing - Part 2. Test methods Test Fc. Vibration (sinusoidal)" in Test equipment.
Manufactured in accordance with this standard hydraulic shakers meet MIL-STD-810F "Environmental Engineering considerations and laboratory tests" on the vibration test set Equipment requirements.
This standard is JB/T 8288-2001 "hydraulic shaker" as the basis to develop.
The national standards and standards-related other types of shakers are.
--- GB/T 13309-2007 "mechanical vibration generator";
--- GB/T 13310-2007 "electrodynamic vibration."
Since the implementation of this standard, the machinery industry standard JB/T 8288-2001 "hydraulic shaker" automatically expires.
Please note that some of the content of this standard may involve patents. The standard release mechanism should not bear the responsibility to identify these patents.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee tester (SAC/TC122) centralized.
This standard is the first release.
1 Scope
This standard specifies the basic parameters of the hydraulic shaker, technical requirements, test methods and inspection rules.
This standard applies to not more than the rated sinusoidal excitation force 1000kN hydraulic vibration table (hereinafter referred to as shaker).
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 2298 Mechanical vibration and shock term (GB/T 2298-1991, neq ISO 2041:1990)
GB/T 2611-2007 General requirements for testing machines
GB/T 10179-1988 hydraulic servo vibration test equipment Method of describing characteristics
JB/T 6147-2007 test machine packing, packaging and marking, storage and transportation technology requirements
3 Terms and Definitions
GB/T 2298 and established the following terms and definitions apply to this standard.
3.1
The relevant technical documentation specified maximum test load.
3.2
Rated maximum sinusoidal excitation force test under load.
3.3
Rated exciting force and the nominal maximum acceleration under load.
3.4
Rated test load varies with frequency acceleration limit, usually with the limit curve.
3.5
Range limit characteristic curve of the lowest frequency to the highest frequency.
3.6
Under a scanning speed octave per minute, each scanning point of 80% of the rated fixed vibration acceleration were measured by the control accuracy Maximum.
3.7
At rated load conditions, setting uniform acceleration power spectral density can reach the maximum centrifugal force. On the force and frequency, the lower limit of Corresponding to a uniform acceleration power spectral density between.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 2298Mechanical vibration, shock and condition monitoring -- Vocabulary
- GB/T 2611-2007Testing machines - General requirements
- GB/T 10179-1988Servo-hydraulic test equipment for generating vibration -- Method of describing characteristics
- JB/T 6147-2007echnical specification for the packaging, packaging marking and handling of testing machine products
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