|Table of Contents|

Design of spacecraft propulsion platform with main structure and tank bearing together(PDF)

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

Issue:
2020年04期
Page:
67-73
Research Field:
研究与设计
Publishing date:

Info

Title:
Design of spacecraft propulsion platform with main structure and tank bearing together
Author(s):
CHEN Jia; GU Chengzhang; LIN Renbang; LIU Tao; ZHAO Xuecheng; CHEN Cheng
(Aerospace System Engineering Shanghai,Shanghai 201109,China)
Keywords:
bearing together;  propulsion platform;  tank;  variable stiffness;  optimal design
PACS:
V19
DOI:
-
Abstract:
The lightweight design of the spacecraft propulsion platform is crucial to improve the spacecraft mission efficiency and optimize the system performance.At present, the tank of the typical propulsion platform rarely participates in the load bearing, so an auxiliary bearing structure is used to transfer the tank load to the main structure, which reduces the bearing efficiency of the propulsion platform.For the lightweight design requirement of spacecraft, a propulsion platform with main structure and fuel tank bearing together is presented.The new developed surface tension tank is installed on the sidewall of the bearing cylinder by embedded installation, and the load level of the tank is controlled reasonably through the variable stiffness design of the bearing cylinder.Basis on the example of a satellite development, structural design parameters of the propulsion platform was optimized based on Nastran software, and simulation analysis and experimental verification were carried out.The research results show that the mechanical properties of propulsion platform with main structure and fuel tank bearing together is equivalent to that of a general propulsion platform, but the dry weight proportion of propulsion platform can be reduced to 13.6%, which can improve the system efficiency remarkably.The research results can be a reference for the propulsion platform design of large spacecraft.

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Last Update: 2020-07-30