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GB/T 18703-2021Mechanical vibration and shock - Hand-arm vibration - Measurement and evaluation of the vibration transmissibility of gloves at the palm of the hand (English PDF)

机械振动与冲击手传振动手套掌部振动传递率的测量与评价

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

August 20, 2021

Implementation date

March 1, 2022

Scope

GB/T 18703-2021 is the English-translated version of 机械振动与冲击手传振动手套掌部振动传递率的测量与评价.

GB/T 18703-2021 is the Chinese standard "Mechanical vibration and shock - Hand-arm vibration - Measurement and evaluation of the vibration transmissibility of gloves at the palm of the hand".

Its scope clause reads: This standard specifies the laboratory measurement and measurement of the vibration transmission rate of gloves with damping materials (covering the palm, fingers and thumb).

Evaluation method, that is, when the vibration is at the 1/3 octave band and the center frequency range is 25Hz~1250Hz, according to the vibration from the handle to the palm.

Transfer methods for laboratory measurement, data analysis and reporting of glove vibration transmission rate. The measurement method specified in this standard can also be used for the measurement of the vibration transmission rate of the vibration damping material that covers the handle of the machine or may be used in the glove. quantity.

However, when the material covering the handle meets this standard according to the measurement results of this standard, it cannot be used to determine that it is the anti-vibration covering.

With this If the measured material is used on gloves, in this case, the gloves need to be measured according to the measurement steps in this standard and meet this standard The quasi-vibration reduction performance requirements can be judged as anti-vibration gloves.

Note. GB/T 19739 [1] specifies a method for screening the materials used for machine handle vibration damping and gloves. Its clauses include terms and definitions; symbols and abbreviations.

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Document preview — GB/T 18703-2021

National Standard of the People's Republic of China

Classification: J 04

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Measuring principle and equipment
5.1 General principles and devices
5.2 Measuring equipment
5.3 Excitation system
6 Measurement conditions and procedures
6.1 Measurement conditions
6.2 Vibration signal
6.3 Measurement procedure
7 Evaluation of results
7.1 Calculation of transfer rate
7.2 Vibration transmission rate of bare adapter
7.3 Uncorrected glove vibration transmission rate
7.4 Corrected glove vibration transmission rate
8 Calculation of statistical values
8.1 Overview
8.2 Vibration transmission rate of 1/3 octave
8.3 Frequency weighted vibration transmission rate
9 Criteria for judging gloves as anti-vibration gloves
9.1 Overview
9.2 Vibration transmission rate of gloves
9.3 The structure of the glove
10 Measurement report
Appendix A (informative appendix) Example of handle with force and acceleration measurement system

1 Scope

This standard specifies the laboratory measurement and measurement of the vibration transmission rate of gloves with damping materials (covering the palm, fingers and thumb).

Evaluation method, that is, when the vibration is at the 1/3 octave band and the center frequency range is 25Hz~1250Hz, according to the vibration from the handle to the palm.

Transfer methods for laboratory measurement, data analysis and reporting of glove vibration transmission rate.

The measurement method specified in this standard can also be used for the measurement of the vibration transmission rate of the vibration damping material that covers the handle of the machine or may be used in the glove.

quantity. However, when the material covering the handle meets this standard according to the measurement results of this standard, it cannot be used to determine that it is the anti-vibration covering. With this

If the measured material is used on gloves, in this case, the gloves need to be measured according to the measurement steps in this standard and meet this standard

The quasi-vibration reduction performance requirements can be judged as anti-vibration gloves.

Note. GB/T 19739 [1] specifies a method for screening the materials used for machine handle vibration damping and gloves.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article

Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 2298 Mechanical vibration, shock and condition monitoring vocabulary (GB/T 2298-2010, ISO 2041.2009, IDT)

GB/T 3241 Electroacoustic Octave and Fractional Octave Filter (GB/T 3241-2010, IEC 61260.1995, MOD)

GB/T 14790.1 Mechanical vibration Measurement and evaluation of human exposure to hand-borne vibration Part 1.General requirements (GB/T 14790.1-2009, ISO 5349-1.2001, IDT)

GB/T 15619 Mechanical Vibration and Shock Human Exposure Vocabulary (GB/T 15619-2005, ISO 5805.1997, IDT)

GB/T 16252-1996 Adult hand size

GB/T 23716 Human body response to vibration measuring instrument (GB/T 23716-2009, ISO 8041.2005, IDT)

3 Terms and definitions

The following terms and definitions defined in GB/T 2298 and GB/T 15619 apply to this document.

3.1 Glovevibrationtransmissibility

The ratio of the acceleration measured on the gloved palm adaptor to the acceleration measured on the instrument handle.

Note. When the vibration transmission rate of the glove is greater than 1, it indicates that the glove has increased the vibration; the value is less than 1 indicates that the glove has reduced the vibration.

4 Symbols and abbreviations

The following symbols and abbreviations apply to this document.

GB/T 19348.1 | GB/T 18851.1 | GB/T 18851.2 | GB/T 18258 | GB/T 18707.2 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 51 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 2041.2009 · IEC 61260.1995 · ISO 5349 · ISO 5805.1997 · ISO 8041.2005

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