发明名称 |
Hub spring moment isolation in underslung two-bladed teetering rotor |
摘要 |
A method and system which isolates two-per-rev hub spring moment vibrations while providing control power during zero-g flight in a two-bladed teetering rotor helicopter. Hub spring structure is connected between the rotor and the pylon to resist rotor flapping about the teeter axis and thus provide control during zero-g flight. To isolate from the fusilage the hub spring moment two-per-rev vibrations, the rotor is coupled to the pylon below the rotor center of gravity at a distance related to both the hub spring rates and the in-plane frequency of the helicopter blades.
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申请公布号 |
US4115031(A) |
申请公布日期 |
1978.09.19 |
申请号 |
US19740460353 |
申请日期 |
1974.04.12 |
申请人 |
TEXTRON, INC. |
发明人 |
DREES, JAN M.;SONNEBORN, WALTER G. O.;YEN, JING G. |
分类号 |
B64C27/00;B64C27/35;B64C27/43;(IPC1-7):B64C11/12 |
主分类号 |
B64C27/00 |
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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