GB/T 38206.1-2019 English PDF

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GB/T 38206.1-2019: Methods to assess the reliability of pneumatic components -- Part 1: General procedures
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Basic data

Standard ID: GB/T 38206.1-2019 (GB/T38206.1-2019)
Description (Translated English): Methods to assess the reliability of pneumatic components -- Part 1: General procedures
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J20
Classification of International Standard: 23.100.01
Word Count Estimation: 42,491
Date of Issue: 2019-10-18
Date of Implementation: 2020-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38206.1-2019: Methods to assess the reliability of pneumatic components -- Part 1: General procedures

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Methods to assess the reliability of pneumatic components--Part 1. General procedures ICS 23.100.01 J20 National Standards of People's Republic of China Pneumatic component reliability assessment method Part 1. General procedure Part 1. Generalprocedures [ISO .19973-1.2015, Pneumaticfluidpower-Assessmentof componentreliabilitybytesting-Part 1.Generalprocedures,MOD] Published on.2019-10-17 2020-05-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 symbols and units of measure 2 5 Reliability Overview 3 6 Test plan 3 7 Statistical Analysis 4 8 Test conditions 4 9 sample size and selection criteria 5 10 Test termination 5 11 Evaluation of reliability characteristics from test data 5 12 Test Report 7 13 Labeling instructions 7 Appendix A (informative) Handling outliers in test data 8 Appendix B (Normative Appendix) Determination of Termination Life 14 Appendix C (informative) Determination of the leakage threshold 18 Appendix D (informative) Minimum life verification under specified reliability and one-sided confidence 23 Appendix E (informative) Procedure for estimating the censored test data without shelf components 27 Appendix F (informative) Procedure for estimating the censored test data of the shelving unit 29 Appendix G (informative) Example of test results 32 Reference 37

Foreword

GB/T 38206 "Pneumatic component reliability assessment method" is divided into five parts. --- Part 1. General procedures; --- Part 2. Reversing valve; ---Part 3. Cylinders with piston rods; --- Part 4. Pressure regulating valve; --- Part 5. Check valves, shuttle valves, dual pressure valves (and valves), one-way throttle valves and quick-discharge valves. This part is the first part of GB/T 38206. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This section uses the redrafting method to modify the use of ISO .19973-1.2015 "Pneumatic Transmission Components Reliability Test Evaluation Part 1 Points. General Procedures. The technical differences between this part and ISO .19973-1.2015 and their reasons are as follows. ---About the normative reference documents, this part has made technical adjustments to adapt to China's technical conditions, adjustments The situation is reflected in Chapter 2, “Regulatory Citations”, and the specific adjustments are as follows. ● Replace IEC 60050-191 with GB/T 2900.13 equivalent to the international standard (see Chapter 3); ● Replace ISO 3534-1 with GB/T 3358.1 equivalent to the international standard (see Chapter 3); ● Replace ISO 5598 with GB/T 17446, which is equivalent to the international standard (see Chapter 3). --- Modified some terms and definitions (see 3.2, 3.5, 3.7, 3.8, and 3.11). This section also made the following editorial changes. --- Change the standard name to "Pneumatic Components Reliability Assessment Method Part 1. General Procedures"; --- Change the name of the quantity to the sign of the quantity [see formula (A.3), formula (A.5)]. This part was proposed by the China Machinery Industry Federation. This part is under the jurisdiction of the National Hydraulic and Pneumatic Standardization Technical Committee (SAC/TC3). This section drafted by. National Pneumatic Product Quality Supervision and Inspection Center, Wuxi Pneumatic Technology Research Institute Co., Ltd., Ningbo Xingjian Aerospace Machinery Co., Ltd., Beijing University of Aeronautics and Astronautics, Shanghai Jiaotong University, Zhejiang Yiri Pneumatic Technology Co., Ltd., Ningbo Jiaerling Pneumatic Machinery Company, Xingyu Electronics (Ningbo) Co., Ltd., Ningbo Lida Pneumatic Complete Set Co., Ltd., Yueqing Hengyi Pneumatic Co., Ltd., Ningbo Huayi Pneumatic Engineering Co., Ltd., Zhejiang Xingchen Pneumatic Co., Ltd. The main drafters of this section. Lu Bo, Ren Zhisheng, Yang Yuran, Gao Zepu, Shi Yan, Ye Wei, Ren Cheli, Shan Junbo, Cao Jianbo, Xia Jiayong, Zhu Lefei, Jiang Haodi, Qian Cunliang.

Introduction

In pneumatic systems, energy is transferred and controlled through compressed air in the circuit. The pneumatic system consists of a variety of components, which are machines and equipment. An important part of the preparation. Highly reliable machines and equipment are an important guarantee for efficient and economical production. Therefore, it is necessary for the producer to understand the reliability of the pneumatic components in the equipment. Through the test to grasp the reliability characteristics of the components, the producer Ability to build system models and make decisions on service intervals, spare parts inventory, and product optimization. There are three main stages in determining the reliability of components. a) preliminary design analysis. finite element analysis (FEA), failure mode and consequence analysis (FMEA); b) laboratory testing and reliability model establishment. physical mechanism of failure, reliability prediction, prenatal evaluation; c) On-site data collection. maintenance report, quality analysis report. It is used at every stage of the component's life. Preliminary design analysis facilitates identification of possible failure modes and eliminates failures Factors or reduce the impact of failure on reliability. At the sample stage, reliability tests are performed in the laboratory and initial reliability is determined. Throughout Reliability testing of components is required in the production process. In the component application phase, field failure data can be collected. For specific component test procedures and other matters, see Part 2 to Part 5 of GB/T 38206. Pneumatic component reliability assessment method Part 1. General procedure

1 Scope

This part of GB/T 38206 specifies the general procedures, general test conditions, calculation methods, and numbers used to evaluate the reliability of pneumatic components. According to the evaluation method and the preparation requirements of the test report. These procedures and methods are independent of the type of component and the design itself. Note 1. The service life of components is affected by many variables, so statistical analysis is needed to illustrate the test results. This section applies to the first failure of pneumatic components without maintenance. Note 2. Refer to Appendix A for the treatment method when the first time the abnormal value occurs.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2900.13 Electrotechnical terminology credibility and service quality (GB/T 2900.13-2008, IEC 60050-191.1990, IDT) GB/T 3358.1 Statistical terms and symbols Part 1. General statistical terms and terms used for probability (GB/T 3358.1- 2009, ISO 3534-1.2006, IDT) GB/T 17446 fluid drive system and component vocabulary (GB/T 17446-2012, ISO 5598.2008, IDT) ISO 6358 (all parts) Pneumatic transmission Determination of flow characteristics of components using compressible fluids (Pneumaticfluidpow- er-Determinationofflow-ratecharacteristicsofcomponentsusingcompressiblefluids) ISO 80000-1 quantities and units Part 1. General (Quantitiesandunits-Part 1. General)

3 Terms and definitions

The following terms and definitions as defined in GB/T 2900.13, GB/T 3358.1 and GB/T 17446 apply to this document. For the sake of For use, some terms and definitions in GB/T 2900.13 and GB/T 3358.1 are repeated below. 3.1 Mutation failure catastrophicfailure The product is completely unable to complete the sudden failure of all required functions. [GB/T 2900.13-2008, definition 191-04-12] 3.2 Confidence confidencelevel It reflects the proportion of the true value of the parameter in the large number of repeated random samples under the same conditions. Note. A note on this term and definition is given in GB/T 3358.1. 3.3 Confidence limit confidencelimit The bounds of the two-sided confidence interval, or the bounds of the one-sided confidence interval. Note. A note on this term and definition is given in GB/T 3358.1. ......

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