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Joint Time-frequency Analysis of Angular Rate of Launch Tubes’ Cluster During Launching(PDF)

《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

Issue:
2002年03期
Page:
267-269
Research Field:
Publishing date:
2002-06-30

Info

Title:
Joint Time-frequency Analysis of Angular Rate of Launch Tubes’ Cluster During Launching
Author(s):
XuQiang ZhangFuxiang
School of Mechanical Engineering,NUST,Nanjing 210094
Keywords:
launch tubes;  angular rate;  g yroscope;  joint time-frequency analysis
PACS:
TJ760
DOI:
-
Abstract:
Angular rate is selected to represent the vibrat ion characterist ic. It was measured by using piezoelectric-jet-flow gyroscope w hen launching . The t ime history of angular rate includes three stag es w hich are rocket moving in tube, exhausted flow impact ing and f ree vibrat ion after impact ing. T he angular rate sig nal w as processed by using joint time-frequency analysis algorithm. The time-history-dependent vibrat ion frequency of launch tubes cluster w as ca-l culated.

References:

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Memo

Memo:
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Last Update: 2002-06-30