|Table of Contents|

Study on predicting thermal fatigue life for throat structure of LRE thrust chamber(PDF)

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

Issue:
2014年05期
Page:
24-28
Research Field:
研究与设计
Publishing date:

Info

Title:
Study on predicting thermal fatigue life for throat structure of LRE thrust chamber
Author(s):
Study on predicting thermal fatigue life for throat structure of LRE thrust chamber
1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, China； 2. Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
-
PACS:
V434-34
DOI:
-
Abstract:
In order to accurately predict thermal fatigue life for the throat structure of LRE thrust chamber, thermal-mechanical coupling numerical analysis is carried out to simulate the process of thermal deformation for the thrust chamber throat structure in the whole circulation. Some points of the maximum temperature and deformation are taken as the investigated objects to analyze the numerical calculation result and predict the thermal fatigue life of the throat structure under the condition of cyclic loading by means of the theory of cyclic fatigue and the quasi-static fatigue life. The results show that the fatigue life predicted by using the circulation with the single cycle is the safest. Therefore, it is recommended for

References:

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