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GB/T 16947-2009 English PDF

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GB/T 16947-2009: Helical spring fatigue testing standard
Status: Valid

GB/T 16947: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 16947-2009English369 Add to Cart 3 days [Need to translate] Helical spring fatigue testing standard Valid GB/T 16947-2009
GB/T 16947-1997English559 Add to Cart 4 days [Need to translate] Helical springs fatigue testing standard Obsolete GB/T 16947-1997

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Basic data

Standard ID GB/T 16947-2009 (GB/T16947-2009)
Description (Translated English) Helical spring fatigue testing standard
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J26
Classification of International Standard 21.160
Word Count Estimation 16,149
Date of Issue 2009-03-16
Date of Implementation 2009-11-01
Older Standard (superseded by this standard) GB/T 16947-1997
Regulation (derived from) National Standard Approval Announcement 2009 No.2 (Total No.142)
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 the fatigue test specification under variable load coil spring. This standard applies to the helical compression and tension springs (hereinafter referred to as the spring) to verify fatigue life and reliability assessment. For other spring products under variable loads can refer to use.

GB/T 16947-2009: Helical spring fatigue testing standard

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Helical spring fatigue testing standard ICS 21.160 J26 National Standards of People's Republic of China Replacing GB/T 16947-1997 The coil spring fatigue testing standard Posted 2009-03-16 2009-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is GB/T 16947-1997 "coil spring fatigue testing standard" amendments. Remains revising GB/T 16947-1997 "Coil spring fatigue testing standard" valid part, no longer meet the revised content. This standard has been revised with the main standards To differences are as follows. --- According to the original standard GB/T 1.1 were editorial changes; --- Delete the original standard table 2; --- Adjust the original criteria specified in Table 3 types of products as well as the role of the number of cycles, and as informative annex; --- Remove the original criteria specified in Table 4 according to the reliability of the fatigue life of the product classification; --- Adjust the original standard table 5 (now Table 2) the minimum number of samples recommended; --- Table B. Reliability R 1 meter valuations were checked and integration. This standard Annex A, Annex B and Annex C is informative appendix. The standard proposed by China Machinery Industry Federation. The standard spring by the National Standardization Technical Committee (SAC/TC235) centralized. This standard is drafted by. Changzhou Ming Kam Spring Co., Ltd., Beijing University of Technology. Participated in the drafting of this standard. Wuxi Sawane Spring Co., United Artists Shandong Automobile Spring Co., Ltd. Yangzhou spring, often State Spring Co., Ltd., the machine Productivity Promotion Center, Zhejiang Meili Spring Co., Ltd., Zhejiang Jinchang Spring Co., Ltd., Hangzhou Qianjiang bomb Reed Ltd., Hangzhou Fuchun Spring Co., Ltd., Wuxi STEEL SPRING CO. The main drafters. Zhang Ying will, Caohui Rong, Yang Weiming, Mayou Fang, Jiang Ying, Wang Shaoju, Hu Jia Wu Gang, Tu Shirun, Wang Wei, Zhangyong Sen, Shao Wenwu, Zhou Ping steel. This standard replaces the standards previously issued as follows. --- GB/T 16947-1997. The coil spring fatigue testing standard

1 Scope

This standard specifies the test specification for fatigue under variable load of the coil spring. This standard applies to helical compression and tension spring (hereinafter referred to as spring) verification of the fatigue life and reliability assessment. For variable loads for Other spring products by the following reference may be used.

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 23935 cylindrical coil spring design calculation GB/T 1805 spring term 3 Terms, definitions and symbols Basic terms of the spring according to GB/T 1805 regulations. And fatigue tests related terms, definitions, symbols and units are shown in FIG. 1 and Table 1. Figure 1 a schematic view of a load change Table 1 Symbol Definition Unit Fatigue life validation tests To determine the level of spring fatigue life or verify whether a given life Life test object is carried out Reliability Evaluation Test To determine the level of reliability of the spring or verify whether a given reliable The target value of the object of the test which was conducted Reliability R Sample spring (hereinafter referred to as the sample) under specified conditions and provisions for circulation Probability does not fail in the number of

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