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Fatigue experiment of turbo-pump rotor at over-speed and high temperature condition(PDF)

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

Issue:
2015年01期
Page:
15-22
Research Field:
研究与设计
Publishing date:

Info

Title:
Fatigue experiment of turbo-pump rotor at over-speed and high temperature condition
Author(s):
DOU Wei;  YAN Yu-long;  JIN Zhi-lei;  LIN Qi-yan
Beijing Aerospace Propulsion Institute, Beijing 100076, China
Keywords:
liquid-propellant rocket engineturbo-rotorhigh-temperature fatigue test
PACS:
V434-34
DOI:
-
Abstract:
In order to study the dynamic characteristics of turbo-pump rotor system in liquid- propellant rocket engine at high speed and high temperature condition, a finite element model for high temperature and over-speed test of turbo-pump rotor system in a liquid-propellant rocket engine was built by means of the finite element method to research the influence of temperature and critical speed on mode shape and dynamic characteristics of turbo-pump rotor system. The vibration state and bearing stress change rule in the startup process of rotor system in normal and high temperature are analyzed. The fatigue experiment of turbo-pump rotor in over-speed and high temperature was carried out. Based on simulation analysis, the influence rules of high temperature on the dynamic characteristics of turbo-pump rotor system have been mastered. The research result provided a basis for further research on dynamic performance of turbo-pump rotor system at high temperature.

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Last Update: 1900-01-01