GB/T 14527-2021Compound dampling isolator and compound damper (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 14527-2007 "Composite Damping Vibration Isolator and Compound Damper", compared with GB/T 14527-2007, except In addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) The normative references have been changed (see Chapter 2, Chapter 2 of the.2007 edition);

b) Delete the provisions related to airborne (see 4.1 in the.2007 edition);

c) The main dimensions of the intensive composite damping vibration isolator have been increased (see Table 3);

d) The basic parameters of the intensive composite damping isolator have been added (see Table 4);

e) Deleted the impact transmission rate (see 5.4.4 and 6.12 in the.2007 edition);

f) The installation requirements for vibration isolators have been changed (see 5.4.4, 5.4.6 of the.2007 edition);

g) The selection requirements for vibration isolators have been added (see 5.4.4);

h) The requirements of the test conditions are changed (6.1.2, 6.1.2 of the.2007 edition);

i) The description of the maximum service life of the vibration isolator has been changed (see 8.2.5, 8.2.5 of the.2007 edition).

1 Scope

This document specifies non-resonant peak nonlinear composite damping vibration isolators (hereinafter referred to as vibration isolators) and composite dampers (hereinafter referred to as dampers)

The classification and basic parameters, requirements, test methods, inspection rules, marking, packaging, transportation and storage, etc.

This document is applicable to the design, production and acceptance of vibration isolators and dampers used in electronic equipment, instrumentation, vibration isolation, and shock prevention.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 191 Packaging, storage and transportation pictorial signs

GB/T 528 Determination of tensile stress and strain properties of vulcanized rubber or thermoplastic rubber

GB/T 2298 Terminology for Mechanical Vibration and Shock

GB/T 2423.1-2008 Environmental testing of electric and electronic products Part 2: Test method Test A. Low temperature

GB/T 2423.2-2008 Environmental testing of electric and electronic products Part 2: Test method Test B. High temperature

GB/T 2423.5 Environmental Test Part 2: Test Method Test Ea and Guideline. Impact

GB/T 2423.10 Environmental Test Part 2: Test Method Test Fc. Vibration (Sine)

GB/T 2423.18 Environmental testing of electrical and electronic products Part 2: Test method Test Kb. Salt spray, alternating (sodium chloride soluble liquid)

GB/T 11211 Determination of bonding strength between vulcanized rubber and metal tensile method

3 Terms and definitions

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