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1. 发明授权

US4874292A Apparatus for damping helicopter rotor blade oscillations 失效
标题翻译：用于阻尼直升机转子叶片振荡的装置
公开(公告)号：US4874292A
公开(公告)日：1989-10-17
申请号：US272967
申请日：1988-11-18
申请人： David G. Matuska , Donald L. Ferris
发明人： David G. Matuska , Donald L. Ferris
IPC分类号： B64C27/51
CPC分类号： B64C27/51
摘要： A major design consideration in helicopters is that of compensating for ssses on blades resulting from air forces during blade revolutions. Spinning rotor blades are severely stressed. To some degree conventional articulated helicopter rotor hubs overcome vibration difficulties, but high maintenance is a problem. Hingeless helicopter rotor assemblies, generally employing composite materials, were developed to overcome these obstacles. Such hingeless helicopter rotor assemblies usually include a rigid central hub member, and radial flexbeams rigidly attached to the hub member. Flexbeam rotors do not completely eliminate the dynamic instability difficulty. Even using these designs energy must be absorbed by damping means. The shear principle of damping is utilized in this invention.
摘要翻译：直升机的主要设计考虑是补偿叶片转速期间由空气引起的叶片上的应力。旋转叶片受到严重压力。在某种程度上，传统的铰接式直升机转子毂克服了振动的困难，但高维护是一个问题。通常使用复合材料的无绳直升机转子组件被开发以克服这些障碍。这种无铰链式直升机转子组件通常包括刚性中心轮毂构件和刚性地附接到轮毂构件的径向挠性梁。 Flexbeam转子不能完全消除动态不稳定性难度。即使使用这些设计，能量必须被阻尼装置吸收。在本发明中使用了阻尼的剪切原理。

2. 发明授权

US4645423A Tension/compression rod arrangement for damping helicopter rotor blade oscillations 失效
标题翻译：用于阻尼直升机转子叶片振动的张力/压缩杆布置
公开(公告)号：US4645423A
公开(公告)日：1987-02-24
申请号：US760232
申请日：1985-07-29
申请人： Donald L. Ferris , David G. Matuska
发明人： Donald L. Ferris , David G. Matuska
IPC分类号： B64C27/35 , B64C27/51 , F03D7/04
CPC分类号： B64C27/51
摘要： Apparatus for damping blade lead/lag motion on a hingeless helicopter rotor assembly, including a hub, blades and flexbeam(s) interposed between the root end of the blades and the hub. Rigid, radial links extend the length of the flexbeams for attachment to the outboard ends thereof. Lead/lag motion at the outboard end of the flexbeam causes flexbeam bending, which is converted to radial translation of the links. This radial translation of the links and likewise the blade lead/lag motion is damped by damper means connected between the inboard ends of the links and the hub.
摘要翻译：用于在无铰链直升机转子组件上阻尼叶片引导/滞后运动的装置，包括插入在叶片的根端和轮毂之间的轮毂，叶片和挠性束。刚性的径向连接件延伸柔性梁的长度以附接到其外侧端部。在柔性梁的外侧的引导/延迟运动导致弯曲弯曲，其被转换成链节的径向平移。连杆的径向平移以及叶片的前进/后退运动被连接在连杆的内侧端和轮毂之间的阻尼装置阻尼。

3. 发明授权

US4804315A Composite helicopter swashplate 失效
标题翻译：复合直升机斜盘
公开(公告)号：US4804315A
公开(公告)日：1989-02-14
申请号：US80369
申请日：1987-07-30
申请人： Donald L. Ferris , Francis E. Byrnes , Lawrence N. Varholak, Jr.
发明人： Donald L. Ferris , Francis E. Byrnes , Lawrence N. Varholak, Jr.
IPC分类号： B64C27/605 , B64C27/74
CPC分类号： B64C27/605
摘要： A helicopter composite swashplate ring that has a triaxial braided tubular ring that withstands both forces in-plane and normal to the plane of the swashplate. The triaxial braided tubular ring comprises substantially circumferential fibers interwoven with angled fibers oriented at a predetermined angle to the circumferential fibers. The tubular ring contains a composite circumferential spacer ring that comprises an upper ring plate connected to a lower ring plate by a plurality of first tubular support members. The upper ring plate and lower ring plate are adjacent the inside upper and insider lower surfaces of the tubular ring, respectively. The upper and lower plates have openings in alignment with the first tubular support members. The ring plates have a plurality of sections extending radially outward. The sections have lug openings that are in alignment with a plurality of second vertical support members to form channels therethrough for accepting servo or control rod lugs.

4. 发明授权

US4676669A Tailoring tilt in an elastomeric high torque, constant velocity joint 失效
标题翻译：在弹性高扭矩恒速接头中裁剪倾斜
公开(公告)号：US4676669A
公开(公告)日：1987-06-30
申请号：US904792
申请日：1986-09-04
申请人： Francis E. Byrnes , Donald L. Ferris , Eric G. Olsen
发明人： Francis E. Byrnes , Donald L. Ferris , Eric G. Olsen
IPC分类号： B64C27/35 , B64C27/41 , F16F1/393 , F16C27/06
CPC分类号： F16F1/393 , B64C27/35 , B64C27/41
摘要： The tiltwise stiffness of an axially-lobed, nearly-spherical elastomeric joint is made uniform at all azimuths by contouring the axial height of the elastomer or by reducing the thickness or durometer of the elastomer at azimuths where the joint otherwise would be tiltwise stiffer, such as at the lobes. The improvement is useful in the application of the joint to a gimbal-like rotor system.
摘要翻译：通过对弹性体的轴向高度进行轮廓化，或通过减小弹性体在方位角处的厚度或硬度来使轴向裂片几乎球形的弹性体接头的倾斜刚度在所有方位角均匀化，其中接头将倾斜更硬，如在叶瓣处。该改进在将接头应用于万向节转子系统方面是有用的。

5. 发明授权

US4439106A Rotor blade shaft integrity monitoring system 失效
标题翻译：转子叶片轴完整性监控系统
公开(公告)号：US4439106A
公开(公告)日：1984-03-27
申请号：US388299
申请日：1982-06-14
申请人： Donald L. Ferris , Elliot F. Olster , Michael J. Marchitto
发明人： Donald L. Ferris , Elliot F. Olster , Michael J. Marchitto
IPC分类号： B64C27/00 , B64C27/48 , B64D45/00
CPC分类号： B64C27/48 , B64C27/006
摘要： A helicopter rotor blade to hub arm attachment configured to react centrifugal loads from the blade through a blade cuff, spindle, and elastomeric bearings utilizes a bolt in the bore of the spindle for secondary load path operation and a spindle integrity monitoring indicator to provide a visual showing of a deviation from the normal load path.
摘要翻译：直升机转子叶片到轮毂臂附件被构造成使来自叶片的离心载荷通过叶片箍，主轴和弹性轴承反作用，用于主轴的孔中用于二次负载路径操作的螺栓和主轴完整性监控指示器，以提供视觉显示与正常负载路径的偏差。

6. 发明授权

US4047838A Blade pitch control mechanism for helicopters 失效
标题翻译：直升机叶片桨距控制机构
公开(公告)号：US4047838A
公开(公告)日：1977-09-13
申请号：US669411
申请日：1976-03-22
申请人： Donald L. Ferris , Robert L. Faiz
发明人： Donald L. Ferris , Robert L. Faiz
IPC分类号： B64C27/72 , B64C27/605 , B64C27/10
CPC分类号： B64C27/605
摘要： Pitch control linkage for the upper rotor of coaxial counterrotating rotors utilizes conventional swashplate, control rod and servomotor elements for changing blade pitch but without the conventional rotating and non-rotating scissors for reacting swashplate torque. This is accomplished by the use of rotating and non-rotating walking beams and combination torque reacting control rods between the walking beams and the rotatable and non-rotatable swashplate elements. Means are also disclosed for shimming the rotatable walking beams to achieve pre-track adjustment of the pitch of individual blades.
摘要翻译：同轴反转转子上转子的间距控制联动使用传统的旋转斜盘，控制杆和伺服电机元件来改变叶片间距，但没有常规的旋转和非旋转剪刀用于使斜盘扭矩反应。这是通过在步进梁和可旋转和不可旋转的斜盘元件之间使用旋转和非旋转步进梁以及组合的扭矩反应控制杆来实现的。还公开了用于对可旋转的步进光束进行匀场以实现单个叶片间距的预跟踪调整的装置。

7. 发明授权

US4797064A Composite helicopter rotor hub 失效
标题翻译：复合直升机转子轮毂
公开(公告)号：US4797064A
公开(公告)日：1989-01-10
申请号：US80370
申请日：1987-07-30
申请人： Donald L. Ferris , Francis E. Byrnes
发明人： Donald L. Ferris , Francis E. Byrnes
IPC分类号： B64C27/35 , B64C27/32 , B64C11/06
CPC分类号： B64C27/32
摘要： A fiber reinforced braided composite main helicopter rotor hub retention plate whose fiber orientation withstands forces both in the plane of the retention plate and normal to the plane. The retention plate comprises a fiber reinforced resin braided tubular ring having substantially circumferential fibers interwoven with angled fibers disposed about a central core. Arms extend inward from the braided ring for attachment to a driveshaft.

8. 发明授权

US4569629A Helicopter gimbal rotor 失效
标题翻译：直升机云台转子
公开(公告)号：US4569629A
公开(公告)日：1986-02-11
申请号：US655384
申请日：1984-09-27
申请人： Donald L. Ferris , Charles F. Niebanck , Thomas G. Campbell , Eric G. Olsen
发明人： Donald L. Ferris , Charles F. Niebanck , Thomas G. Campbell , Eric G. Olsen
IPC分类号： B64C27/32 , B64C27/33 , B64C27/35 , B64C27/41
CPC分类号： B64C27/32 , B64C27/33 , B64C27/35 , B64C27/41
摘要： Hub moment and driving torque is provided for a helicopter gimbal rotor by two-part flat springs that are in-plane with the rotor tilt point (P). The inboard end of an outward part of each spring is connected to the rotorshaft and the inboard end of an inward part of the spring is connected to the tiltable hub member. The outboard ends of the two spring parts are journaled together by an eccentric elastomeric joint that allows for spring foreshortening that accompanies rotor tilt.
摘要翻译：通过与转子倾斜点（P）处于平面的两部分平面弹簧为直升机万向转子提供轮毂力矩和驱动扭矩。每个弹簧的向外部分的内侧端部连接到转轴，并且弹簧的向内部分的内侧端部连接到可倾斜的毂部件上。两个弹簧部件的外侧端部通过一个偏心的弹性接头连在一起，该弹性接头允许伴随转子倾斜的弹簧缩短。

9. 发明授权

US4368006A Droop stop for fully articulated rotor 失效
标题翻译：完全铰接转子的下降停止
公开(公告)号：US4368006A
公开(公告)日：1983-01-11
申请号：US176151
申请日：1980-08-07
申请人： Donald L. Ferris , Robert C. Rybicki
发明人： Donald L. Ferris , Robert C. Rybicki
IPC分类号： B64C27/32 , B64C27/40
CPC分类号： B64C27/322
摘要： An improved droop stop for a fully articulated helicopter rotor is providedherein curved mating surfaces are employed between the spindle pad and the centrifugal droop stop static support arm to provide surface rather than line contact therebetween during centrifugal operation. The centers of the curved surfaces are coincident at the pivot point of the droop stop centrifugal arm to force the downward load of the blade to pass through this pivot point.
摘要翻译：提供了一种用于完全铰接的直升机转子的改进的下垂停止件，其中在主轴垫和离心下垂停止静力支撑臂之间采用弯曲配合表面，以在离心操作期间提供表面而不是线间接触。弯曲表面的中心在下垂停止离心臂的枢转点处重合，以迫使叶片的向下的载荷通过该枢转点。

10. 再颁专利

USRE30713E Cross beam rotor 失效
标题翻译：横梁转子
公开(公告)号：USRE30713E
公开(公告)日：1981-08-18
申请号：US62851
申请日：1979-08-01
申请人： Donald L. Ferris , Timothy A. Krauss
发明人： Donald L. Ferris , Timothy A. Krauss
IPC分类号： B64C27/33
CPC分类号： B64C27/33
摘要： A helicopter rotor having opposed blades interconnected by a common flexible spar which passes across the rotor axis is connected to the drive shaft by clamped hub plates. A spanwise extending torque tube having a pitch horn at its inner end forms a rigid connection with the spar and blade at its outboard end. A centering bearing assembly is positioned at the inner end of the torque tube and spar to react control loads, centralize the torque tube about the spar, and provide pitch, flap, and lead-lag decoupling.

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