|Table of Contents|

Effect of tolerance clearance on low-speed dynamic balance of turbopump rotor(PDF)

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

Issue:
2017年04期
Page:
14-17
Research Field:
研究与设计
Publishing date:

Info

Title:
Effect of tolerance clearance on low-speed dynamic balance of turbopump rotor
Author(s):
JIN Lu;  LI Aimin;  CHEN Hui;  LI Huimin;  HAN Fei
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
tolerance clearance;  turbopump;  rigid rotor;  dynamic balance
PACS:
TH113.1-34
DOI:
-
Abstract:
Low-speed dynamic balance of rigid rotor is a very important link in the process of turbopump assemble. Residual imbalance is one of the key influence factor of rotor vibration, as well as an important factor affecting the reliability of turbopump. During the development of turbopump in a certain engine, the amount of imbalance after hot test was 10~20 times higher than that appeared in assemble process. The theoretical model of the turbopump rotor was established to determine the effect of the tolerance clearance on dynamic balance. The influence of mass eccentricity and tolerance clearance on the residual imbalance was studied. Those components whose assemble accuracy and balance need to be independently strengthened were determined by comparing the influence level. The dynamic balance experiments were done several times for validation of the theoretical model.

References:

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Memo

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Last Update: 1900-01-01