|Table of Contents|

Analysis of effects of bellows in front of pump on thrust measurement(PDF)

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

Issue:
2015年04期
Page:
95-99
Research Field:
测控与试验
Publishing date:

Info

Title:
Analysis of effects of bellows in front of pump on thrust measurement
Author(s):
SHEN Jibin;  ZENG Xiaojun;  CAO Qinghong
Xi’an Aerospace Propulsion Test Technique Institute, Xi’an 710100, China
Keywords:
bellows;  thrust measurement;  negative thrust correction
PACS:
V434-34
DOI:
-
Abstract:
Thrust measurement in LRE test process is significant to estimate the LRE performance. To decrease the influence of test system on thrust measurement accuracy and improve thrust measurement accuracy in ground test of 120 t LOX/Kerosene engine, the forced state of two bellows before pump and the influencing of the bellows in low temperature and pressure status on thrust measurement were analyzed with theoretical analysis and test verification method. The longitudinal thrust loss, thrust local calibration coefficient at low/normal temperature, and negative thrust correction coefficient were achieved. The fixing requirements of the bellows was proposed to ensure the accuracy of thrust measurement data in test process of 120 t LOX/kerosene rocket engine.

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