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GB/T 34523-2017 English PDF

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GB/T 34523-2017: Estimating methods for the mass of remaining propellant of spacecraft
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Basic data

Standard ID GB/T 34523-2017 (GB/T34523-2017)
Description (Translated English) Estimating methods for the mass of remaining propellant of spacecraft
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard V09
Classification of International Standard 49.020
Word Count Estimation 18,113
Date of Issue 2017-11-01
Date of Implementation 2018-05-01
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

GB/T 34523-2017: Estimating methods for the mass of remaining propellant 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.
Estimating methods for the mass of remaining propellant of spacecraft ICS 49.020 V09 National Standards of People's Republic of China Estimation method of spacecraft residual propellant mass Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by China Aerospace Science and Technology Corporation. This standard by the National Aerospace Technology and Standardization Technical Committee (SAC/TC425) centralized. This standard was drafted by Beijing Institute of Control Engineering. The main drafters of this standard. Song Tao, Wei Yanming, Liang Junqiang, Li Yong, Sun Shisheng, Geng Yongbing, Ding Fenglin, Li Ze, Lin Zhen, Gao Jun, Yin Wenjuan, Zhang Lan.

Introduction

The remaining propellant quality determines the spacecraft's ability to work sustainably. For the return spacecraft, the remaining propellant mass is flight The spacecraft returns an important criterion before the implementation of the operation; for low-orbit spacecraft, the remaining propellant mass determines the spacecraft's subsequent orbital plane The number of operational tasks can be implemented; for high-orbit spacecraft, the remaining propellant quality determines the spacecraft orbital working life and end of life The timing of derailment is of great significance for making full use of GEO orbit resources and reducing the generation of space debris. For the purpose of providing on-orbit service merit For spacecraft, the mass of remaining propellants determines the range of services that can be provided. Therefore, the remaining propellant mass estimation is spacecraft As an important task of rail management, the estimation result is an important basis for the prediction of the remaining life of the spacecraft and the planning of subsequent tasks. The standard will be Estimating the remaining propellant mass of spacecraft plays a guiding role. Estimation method of spacecraft residual propellant mass

1 Scope

This standard specifies the spacecraft remaining propellant quality estimation method, estimation method selection and estimation accuracy assessment. This standard applies to spacecraft surface tension tank residual liquid propellant quality estimates, the use of other types of tank or propellant Spacecraft can refer to use.

2 symbol

The symbols listed in Table 1 apply to this document. Table 1 symbol No. Symbol Name Unit 1 a (measured by the accelerometer) acceleration m/s2 2 Is Orbit controlled engine specific impulse m/s 3 K Propellant mixing ratio - 4 Me Propellant remaining amount (final state of the event) kg 5 Mfe Burner remaining amount (event end state) kg 6 Mfi Residual fuel (initial state of the event) kg 7 Mi Propellant residual (initial state of the event) kg 8 Moe Oxidizer remaining (end of event) kg 9 Moi Oxidant remaining (initial state of the event) kg 10 mi Total spacecraft mass (initial state of the event) kg 11 n Number of cylinders - 12 nen Number of engines in operation - 13 Pen Engine inlet pressure Pa 14 Pge Cylinder Pressure (End of Event) Pa 15 Pfe Burner Tank Pressure (End of Event) Pa 16 Pfi Burner Tank Pressure (Initial Event) Pa 17 Pgi cylinder pressure (initial state of the event) Pa 18 Poe Oxidizer Tank Pressure (End of Event) Pa 19 Poi oxidant tank pressure (initial state of the event) Pa 20 Pte Propellant Tank Pressure (End of Event) Pa 21 Pti Propellant Tank Pressure (Initial Condition) Pa

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