发明名称 |
Self-tuning impact damper for rotating blades |
摘要 |
A self-tuning impact damper is disclosed that absorbs and dissipates vibration energy in the blades of rotors in compressors and/or turbines thereby dramatically extending their service life and operational readiness. The self-tuning impact damper uses the rotor speed to tune the resonant frequency of a rattling mass to an engine order excitation frequency. The rattling mass dissipates energy through collisions between the rattling mass and the walls of a cavity of the self-tuning impact damper, as well as through friction between the rattling mass and the base of the cavity. In one embodiment, the self-tuning impact damper has a ball-in-trough configuration with tire ball serving as the rattling mass.
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申请公布号 |
US6827551(B1) |
申请公布日期 |
2004.12.07 |
申请号 |
US20000498794 |
申请日期 |
2000.02.01 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
DUFFY KIRSTEN P.;BROWN GERALD V.;BAGLEY RONALD L. |
分类号 |
F01D5/16;F01D5/26;(IPC1-7):F03B11/04 |
主分类号 |
F01D5/16 |
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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