GB/T 40519-2021 English PDF

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GB/T 40519-2021: Design requirements for atomic oxygen protection of spacecraft
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GB/T 40519-2021	199	Add to Cart	3 days	Design requirements for atomic oxygen protection of spacecraft	Valid

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Basic data

Standard ID: GB/T 40519-2021 (GB/T40519-2021)
Description (Translated English): Design requirements for atomic oxygen protection of spacecraft
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: V70
Word Count Estimation: 10,185
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40519-2021: Design requirements for atomic oxygen protection of spacecraft

---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.
Design requirements for atomic oxygen protection of spacecraft ICS 49.020 CCSV70 National Standards of People's Republic of China Spacecraft Atomic Oxygen Protection Design Requirements Released on 2021-08-20 2022-03-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

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. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed and managed by the National Aerospace Technology and Application Standardization Technical Committee (SAC/TC425). Drafting organizations of this document. Beijing Satellite Environmental Engineering Research Institute, Beijing Space Vehicle General Design Department, Shandong Xinnuo New Materials Co., Ltd. Division, China Academy of Space Technology, China Aerospace Standardization Institute. The main drafters of this document. Li Tao, Jiang Haifu, Cai Zhenbo, Liu Guoqing, Jiang Lixiang, Qu Shaojie, Zheng Huiqi, Jiao Zilong, Tang Zhenyu, Liu Xiangpeng, Zhai Ruiqiong, Wu Xianpeng, Zheng Wenxia, Xu Dongyan. Spacecraft Atomic Oxygen Protection Design Requirements

1 Scope

This document specifies the general requirements, design process and work instructions for the design of atomic oxygen protection for spacecraft. This document is applicable to the protection design of the spacecraft's atomic oxygen oxidation and erosion effect.

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 32452 Spacecraft Space Environment Terminology

3 Terms and definitions

The following terms and definitions defined in GB/T 32452 apply to this document. 3.1 Atomic oxygen effect In the atomic oxygen environment, the material and structural properties change. 3.2 Atomic oxygen incident angle of attack The angle between the incident direction of atomic oxygen and the surface normal of the structured object. 3.3 Windwardside The surface where the angle between the incident direction of the residual atmosphere in the space and the surface normal is between ±90°.

4 General design requirements

4.1 Basic principles 4.1.1 The principle of comprehensiveness The atomic oxygen protection design should fully cover the exposed products and materials of the spacecraft that are sensitive to the atomic oxygen environment, and the materials should be within the lifetime Meet the functional requirements of orbital atomic oxygen ablation, electricity, mechanics, optics, and heat. 4.1.2 Hierarchical principles In the whole process of spacecraft development, the basic principles should be developed from the three levels of system, sub-system/equipment (such as solar arrays, thermal control components, etc.), and materials. Sub-oxygen protection design. 4.1.3 Economic principles The design of atomic oxygen protection should consider economic cost, avoid over-design, and reduce protection cost. ......

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