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GB/T 40538-2021 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 40538-2021: Structural stiffness control requirements of space vehicle
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40538-2021	199	Add to Cart	3 days	Structural stiffness control requirements of space vehicle	Valid

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Basic data

Standard ID: GB/T 40538-2021 (GB/T40538-2021)
Description (Translated English): Structural stiffness control requirements of space vehicle
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: V70
Word Count Estimation: 10,120
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40538-2021: Structural stiffness control requirements of space vehicle

---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.
Structural stiffness control requirements of space vehicle ICS 49.020 CCSV70 National Standards of People's Republic of China Spacecraft structure stiffness control 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 Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 General requirements 1 5 Control flow 2 6 Control requirements 2 6.1 Stiffness control planning 2 6.2 Assignment of stiffness index 2 6.3 Closed-loop control of stiffness index 5 6.4 Verification of stiffness index 5

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 Institute of Aerospace System Engineering, Beijing Space Vehicle General Design Department, China Aerospace Standardization Institute. The main drafters of this document. Lin Hong, Wang Guohui, Chen Yi, Zhang Xinyu, Peng Huilian, Zhu Jiantao, Zhou Wenyong, Pan Zhongwen, Gao Feng, Liang Dongping, Liu Xin, Wang Xuemei, Xie Xuan, Hu Yong, Li Qing, Xu Yan. Spacecraft structure stiffness control requirements

1 Scope

This document specifies the general requirements, control procedures, and control requirements for the rigidity control of the spacecraft structure. This document is applicable to the rigidity control of the spacecraft structure.

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. document. GB/T 2298 Mechanical vibration, shock and condition monitoring vocabulary

3 Terms and definitions

The following terms and definitions defined in GB/T 2298 apply to this document. 3.1 Stiffness index A technical index describing the stiffness characteristics of the structure. Note. Generally refers to natural frequency, section stiffness, section flexibility, etc. 3.2 Primarystructure It is used to transmit and bear the main load and determine the cabin section, frame, rod system and other components of the overall modal characteristics of the structure. 3.3 Payload assembly assemblyofpayloads An assembly that connects multiple main structural components and payloads through series, parallel, or series-parallel combinations. Note. Generally refers to the multi-cabin series combination of the spacecraft, the multi-satellite adapter and satellite combination, the upper stage of the carrier and the satellite combination, etc. 3.4 Sub-structure frequency The overall transverse, longitudinal, and torsional modal frequencies of the payload assembly in the fixed support state. Note. Generally does not include the breathing mode frequency of the local structure.

4 General requirements

4.1 The rigidity control requirements should be throughout all development stages such as the plan, the initial sample, and the sample/proper sample, starting with the rigidity control planning in the plan stage. Point, end with the verification of the stiffness index of the sample/correction phase. 4.2 The stiffness distribution control should cover all working sections of the spacecraft, such as the ground operation section, launch section (solar windsurfing panels and large deployable The open parts are in the folded state), the on-orbit operation section (the large expandable parts are in the expanded state), the flight section of reentry into the atmosphere, and so on. 4.3 The stiffness index should be decomposed step by step according to the order of the whole machine/payload combination, compartment, and components, and confirm all levels in all development stages. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 40538-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 40538-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 40538-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 40538-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.