发明名称 |
Dynamic two frequency vibration damper |
摘要 |
A damper, especially for a structural element of an aircraft and especially a propeller driven aircraft in which the propeller generates vibration in the structural element with a fundamental frequency and a frequency which is a harmonic of the fundamental frequency. The damper has a cantilever bar which can be flexed and a cup-shaped pendulum element affixed to the bar and tunable so that the mass of the pendulum defines a first eigenfrequency of vibration of the damper corresponding to the fundamental and the moment of inertia about an axis perpendicular to the axis of the bar is tuned to a second eigenfrequency corresponding to the fundamental.
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申请公布号 |
US5361878(A) |
申请公布日期 |
1994.11.08 |
申请号 |
US19930007138 |
申请日期 |
1993.01.21 |
申请人 |
ALENIA AERITALIA & SELENIA S.P.A. |
发明人 |
BORSATI, LUCIANO |
分类号 |
F16F7/10;F16F7/116;(IPC1-7):F16F15/00 |
主分类号 |
F16F7/10 |
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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