GB/T 29545-2013 English PDF

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GB/T 29545-2013: Numerical control system of machine tools -- Reliability design
Status: Valid

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Basic data

Standard ID: GB/T 29545-2013 (GB/T29545-2013)
Description (Translated English): Numerical control system of machine tools -- Reliability design
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J50
Classification of International Standard: 25.040.20
Word Count Estimation: 46,426
Quoted Standard: GB/T 7828-1987; GJB 913-1990
Regulation (derived from): National Standards Bulletin 2013 No. 9
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 CNC system reliability design of the basic processes, methods, and review the content and procedures. This standard applies to CNC system (hereinafter referred to as " CNC "). Other industrial machinery CNC system reliability d

GB/T 29545-2013: Numerical control system of machine tools -- Reliability design

---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.
Numerical control system of machine tools.Reliability design ICS 25.040.20 J50 National Standards of People's Republic of China CNC system reliability design Issued on. 2013-06-09 2014-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Reliability Design 2 5 reliability design review 11 Appendix A (informative) Reliability distribution method 14 Appendix B (normative) Reliability Design 18 Selection and Screening Annex C (normative) components 29 Annex D (normative) Reliability Block 31 Appendix E (normative) Common Reliability Model 33 Annex F (informative) failure criterion 36 Annex G (informative) Reliability Prediction Method 37 Appendix H (informative) Table 40 Reliability Design Review References 41

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Machinery Industry Federation. This standard by the National Standardization Technical Committee of CNC machine tool system (SAC/TC367) centralized. This standard is mainly drafted by. Wuhan Huazhong Numerical Control Co., GSK, Huazhong University of Science and Technology. The main drafters of this standard. Jinjian, Zhanghang Jun, Zhang Yujie, Liu Hao, Zheng Xiao, the solution Chuan Ning, WANG Yi-qiang, Shao Guoan, Dai Yi, He Qingchuan.

Introduction

Reliability is an important attribute of CNC machine tools, CNC machine tools combined with this standard structure and performance characteristics are given a variety of Reliability design method, standardized basic design process reliability, and reliability assessment content and procedures. Through the implementation of standards, will promote the machine Bed CNC system reliability level of continuous improvement, to better meet market and customer needs. CNC system reliability design

1 Scope

This standard specifies the basic flow CNC system reliability design, content and methods, and review procedures. This standard applies to CNC system (hereinafter referred to as "NC system"). Other industrial machinery and equipment CNC system reliability design Referring to this standard.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 7828-1987 Reliability design reviews Establishment and reliability of the model is expected reliability GJB813-1990

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Reliability reliability CNC system under specified conditions and within the specified time interval to complete the required function capability. NOTE. rewrite GB/T 2900.13-2008, defined 191-02-06. CNC system is generally considered the beginning of the time interval is required to complete the function of shape state. In addition, although the magnitude of reliability objectively exist, but in fact is unknown, we can only use a limited sample observation data, after a certain Statistics calculated its estimated value. Reliability is also known as the magnitude of the reliability. 3.2 Reliability Design reliabilitydesign The use of methods to achieve specific design practices or procedures CNC system reliability goals. 3.3 The average time between failures meanoperatingtimebetweenfailures; MTBF Adjacent fault mathematical expectation of working hours, but also refers to the average working time between two adjacent failures or MTBF. NOTE. rewrite GB/T 2900.13-2008, defined 191-12-09. 3.4 Life sectional lifeprofile CNC system from manufacturing to end of life, or opt out of sequence during this time experienced the full description of the event and the environment. NC Department Event systems generally have experienced R & D, production, inspection, testing, packaging, transportation, storage, assembly (mounting), commissioning, operation (use), failure to stop Release, maintenance (maintenance), retirement and the like. CNC system environment may have experienced vibration, shock, electromagnetic interference, heat, cold, humidity (water spray), sand Dust (sand and dust), salt spray and the like. 3.5 Mission profile missionprofile Timing is described in the numerical control system complete the required tasks during this time experienced the events and the environment. ......

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