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公开(公告)号:US4360337A
公开(公告)日:1982-11-23
申请号:US175022
申请日:1980-08-04
申请人: Hubert Frommlet , Ludwig Stangl
发明人: Hubert Frommlet , Ludwig Stangl
CPC分类号: B64C27/33 , B64C11/00 , B64C27/32 , B64C27/327
摘要: The wing blades of a helicopter rotor each are connected to the rotor hub a connection, e.g. a spar being .fwdarw..rarw. including a hinge which is at least fictitious to permit lead-lag movements of the blades . A rod, which is stiff in the lead-lag direction and yielding against torsion, is connected in parallel to the connection between the blade root and the rotor hub. One connection of the rod is rigid, for example the connection to the blade root. The other connection of the rod is elastically yielding substantially only in the plane of the rotor whereby a substantial damping of blade movements in the lead-lag direction is accomplished.
摘要翻译: 直升机转子的翼片每个都通过连接连接到转子毂,例如 翼梁是 - > < - 包括至少虚拟的铰链,以允许叶片的牵引滞后运动<相对于扭转产生以允许叶片角度调节>。 在牵引滞后方向上刚性并且抵抗扭转的杆与叶片根部和转子毂之间的连接平行地连接。 杆的一个连接是刚性的,例如与叶片根部的连接。 杆的另一个连接基本上仅在转子的平面中弹性地产生,从而实现叶片在超前滞后方向上的运动的实质性阻尼。