|Table of Contents|

Method of onboard propellant consumption calculation for Chang'e-3 propulsion system(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2015年01期
Page:
63-69
Research Field:
研究与设计
Publishing date:

Info

Title:
Method of onboard propellant consumption calculation for Chang'e-3 propulsion system
Author(s):
CAO Wei1;  XU Ying-qiao2;  WEI Yan-xiang1;  GUO Shang-qun1;  JIN Guang-ming1
1. Shanghai Institute of Space Propulsion, Shanghai 201112, China 2. China Academy of Space Technology, Beijing 100094, China
Keywords:
Chang’e-3;  propulsion system;  propellant consumption calculation
PACS:
V434-34
DOI:
-
Abstract:
The liquid propellant surplus in Chang’e-3 propulsion system is an important data for detector to affirm before each orbital transfer. Calculation error of the liquid propellant remaining can lead to mass miscalculation of Chang’e-3 detector, and cause deviation from the expectative target of orbit transfer, and result in an extra increase of liquid propellant consumption due to orbit correction. Therefore, it is very important to select a reasonable calculation method of onboard propellant consumption for Chang’e-3. According to the comparison results of detection accuracy, reliability and maturity of propellant remaining detection technology, the comprehensive estimation with both accelerometer method and bookkeeping method was adopted for liquid propellant consumption of Chang’e-3 after consideration of actual configuration, development and test of Chang’e-3 propulsion system. Accelerometer method is mainly used in orbit maneuver, and bookkeeping method is used for other period. Analysis of the flight test data shows that it is an effective method with high accuracy. This method can be applied to the onboard propellant consumption calculation of space propulsion system.

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Last Update: 1900-01-01