发明名称 |
Programmable jet blade excitation system |
摘要 |
System and method for characterizing the resonant responses of a plurality of rotating blades in a turbo machine. The system comprises a plurality of controllable fluid jets disposed about a blade row for exciting rotating blades with selectable frequencies of vibration. The sequential excitation of blades at a plurality of narrowly spaced frequencies and the simultaneous sensing of blade responses sufficiently resolves the resonant center frequencies and harmonics thereof in order to detect changes in characteristic blade resonances.
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申请公布号 |
US4776216(A) |
申请公布日期 |
1988.10.11 |
申请号 |
US19870018384 |
申请日期 |
1987.02.24 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
BARTON, SERGE P.;ROZELLE, PAUL F.;TWERDOCHLIB, MICHAEL |
分类号 |
G01H13/00;F01D25/00;G01H1/00;G01H17/00;G01M99/00;(IPC1-7):G01H11/00 |
主分类号 |
G01H13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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