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11. 发明授权

US5460487A Pitch adjustment assembly for bearingless main rotors 失效
标题翻译：无轴承主转子的间距调整组件
公开(公告)号：US5460487A
公开(公告)日：1995-10-24
申请号：US336460
申请日：1994-11-09
申请人： David N. Schmaling , Francis E. Byrnes
发明人： David N. Schmaling , Francis E. Byrnes
IPC分类号： B64C27/59 , B64C27/35 , B64C27/51 , B64C27/605
CPC分类号： B64C27/51 , B64C27/35 , B64C27/605
摘要： A pitch adjustment assembly (100) for a bearingless rotor assembly (20) which includes a torque tube member (36) enveloping a flexbeam connector (22), which torque tube member (36) defines a geometric center (120) and is operative to impart pitch motion to the rotor blade assembly (20). The pitch adjustment assembly (100) includes a centering bearing (70) for centering an inboard end (38) of the torque tube member (36) relative to the flexbeam connector (22), wherein the centering bearing (70) defines a torque tube pivot point (110) about which the torque tube member (36) is rotationally displaced relative to the flexbeam connector (22), a pitch control rod (48) mechanically connecting to a pitch control arm (46) for imparting pitch control inputs to the torque tube member (36); wherein the pitch control rod and arm (46, 48) define an input pivot point (116) and, a displacement mechanism (102 or 140), in combination with the centering bearing (70), for effecting translational displacement of the geometric center (120) of the torque tube member (36) relative to the torque tube and input pivot points (110, 116). The displacement mechanism (102 or 140) cooperates with the centering bearing (70) to effect translational displacement of the torque tube inboard end (38) while maintaining the spatial position of the input pivot point (116) relative to the torque tube pivot point (110). Adjustment shims (102) or a jacking arrangement (140) is used to effect the translational displacement of the torque tube member (36).
摘要翻译：一种用于无轴承转子组件（20）的螺距调节组件（100），其包括包围挠性连接器（22）的扭矩管构件（36），所述扭矩管构件（36）限定几何中心（120）给转子叶片组件（20）施加俯仰运动。螺距调节组件（100）包括定心轴承（70），用于相对于挠性连接器（22）定心转矩管构件（36）的内侧端部（38），其中定心轴承（70）限定扭矩管枢转点（110），扭矩管构件（36）相对于挠性束连接器（22）旋转地移位;螺距控制杆（48），机械地连接到俯仰控制臂（46），用于将俯仰控制输入扭矩管构件（36）; 其中所述俯仰控制杆和臂（46,48）限定输入枢轴点（116）和与所述定心轴承（70）组合的位移机构（102或140），用于实现所述几何中心的平移位移扭矩管构件（36）相对于扭矩管和输入枢转点（110,116）的距离。位移机构（102或140）与定心轴承（70）协作以实现扭矩管内侧端部（38）的平移位移，同时保持输入枢轴点（116）相对于扭矩管枢转点 110）。使用调整垫片（102）或顶起装置（140）来实现扭矩管构件（36）的平移位移。

12. 发明授权

US5372479A Flexbeam for a helicopter bearingless main rotor assembly 失效
标题翻译：用于直升机无轴承主转子总成的Flexbeam
公开(公告)号：US5372479A
公开(公告)日：1994-12-13
申请号：US070573
申请日：1993-06-02
申请人： Francis E. Byrnes , Timothy A. Krauss , David N. Schmaling
发明人： Francis E. Byrnes , Timothy A. Krauss , David N. Schmaling
IPC分类号： B64C27/46 , B64C27/33 , B64C27/473
CPC分类号： B64C27/33
摘要： A flexbeam for a soft inplane bearingless main rotor assembly has six spanwise regions: a hub attachment region; a first tapered region; a second tapered region; a pitch region; a tapered outboard transition region; and a main rotor blade, torque tube attachment region. One described embodiment of the flexbeam is fabricated from continuous unidirectional fiberglass plies having a 0.degree. fiber orientation, unidirectional fiberglass plies of varying lengths having a 0.degree. fiber orientation, and graphite cross plies having .+-.45.degree. fiber orientations. The pitch region is formed solely by the continuous fiberglass plies which define a rectangular cross section therefor. The second tapered region is formed solely by the continuous fiberglass plies and the fiberglass plies of varying lengths. The ends of the fiberglass plies terminate in a distributed arrangement in the second tapered region to define the taper thereof. The remaining regions of the flexbeam are formed by interleaved combinations of the continuous fiberglass plies, the fiberglass plies of varying length, and the graphite cross plies of varying length. Ends of the graphite cross plies terminate in a distributed arrangement in the first tapered region to partially define the taper thereof. Ends of the fiberglass plies and the graphite cross plies terminate in a distributed arrangement in the tapered outboard transition region to define the taper thereof. The distributed arrangements of ply endings cause kick loads in the flexbeam to be distributed relatively uniformly into the ply buildups.
摘要翻译：用于软内平面无轴承主转子组件的柔性梁具有六个翼展区域：轮毂附接区域; 第一锥形区域; 第二锥形区域; 一个音调区域; 锥形外侧过渡区域; 和主转子叶片，扭矩管附接区域。柔性梁的一个描述的实施例由具有0°纤维取向的连续单向玻璃纤维层，具有0°纤维取向的不同长度的单向玻璃纤维层和具有+/- 45°纤维取向的石墨交叉层制成。间距区域仅由限定其矩形横截面的连续玻璃纤维层形成。第二锥形区域仅由连续玻璃纤维层和不同长度的玻璃纤维帘布层形成。玻璃纤维帘布层的端部以第二锥形区域中的分布布置终止以限定其锥度。柔性梁的剩余区域由连续玻璃纤维帘布层，不同长度的玻璃纤维帘布层和不同长度的石墨交叉层的交错组合形成。石墨交叉层的端部在第一锥形区域中以分布式布置终止，以部分地限定其锥度。玻璃纤维帘布层和石墨交叉层的端部以锥形外侧过渡区域中的分布布置终止以限定其锥形。帘布层结构的分布布置导致柔性梁中的脚蹬载荷相对均匀地分布到帘布层积聚中。

13. 发明授权

US5286167A Spar-to-hub joint for a flexbeam helicopter rotor 失效
标题翻译：柔性直升机转子的桨对接头
公开(公告)号：US5286167A
公开(公告)日：1994-02-15
申请号：US826583
申请日：1992-01-27
申请人： Francis E. Byrnes , David N. Schmaling
发明人： Francis E. Byrnes , David N. Schmaling
IPC分类号： B64C27/35 , B64C27/33 , B64C27/48
CPC分类号： B64C27/33
摘要： A flexbeam helicopter rotor having an improved connection between the flexbeam and the hub of the connecting pin variety but in which the high tensile fibers of the flexbeam do not wrap around the connecting pin, wherein the blade centrifugal loads and the blade lead-lag loads are reacted by the connecting pin at a station where it passes through drilled holes in the flexbeam inner end, and wherein the blade flapping motion imposed loads are reacted through two load paths in the flexbeam-to-hub connection, the first load path being created by a prying reaction between the flexbeam and the hub connecting flanges, and the second load path being created by the differential bending reaction between the flexbeam at the station of the drilled holes and the connecting bolts. Further, there is apparatus to decouple the loads and decrease the maximum load in at least one of the load paths created by the aforementioned prying reaction and the aforementioned bending reaction so that they are substantially spaced along the flexbeam axis of rotation from each other to thereby permit the use of a minimum thickness flexbeam, and gain the attended advantage of reduced rotor weight and size, and which flexbeam-to-hub connection has the additional advantage of a reduced flapping hinge effecting offset, or flapping axis, from the prior art type of connection.
摘要翻译：柔性梁直升机转子具有改进的连接销和连接销的轮毂之间的连接，但其中柔性梁的高拉伸纤维不围绕连接销环绕，其中叶片离心载荷和叶片超前滞后载荷是在其穿过柔性束内端的钻孔的工位处由连接销反应，并且其中施加的刮板运动施加的载荷通过柔性梁到毂连接中的两个载荷路径反应，第一载荷路径由柔性梁和轮毂连接凸缘之间的撬动反作用力，并且第二载荷路径是由钻孔工位的挠性梁与连接螺栓之间的差动弯曲反作用产生的。此外，存在使上述撬动反应和上述弯曲反应产生的至少一个负载路径中的负载分离并降低最大负载的装置，使得它们沿着相互的旋转的挠性轴线基本间隔开，从而允许使用最小厚度的柔性梁，并且获得降低的转子重量和尺寸的有益优点，以及哪些柔性梁到毂的连接具有与现有技术类型相关的减小的振动铰链影响偏移或振动轴的附加优点的连接。

14. 发明授权

US5188513A Snubber-bearing with combined elastomer laminates 失效
标题翻译：具有组合弹性体层压板的缓冲支承
公开(公告)号：US5188513A
公开(公告)日：1993-02-23
申请号：US908770
申请日：1992-07-01
申请人： Francis E. Byrnes
发明人： Francis E. Byrnes
IPC分类号： B64C27/35 , F16F3/093
CPC分类号： B64C27/35 , F16F3/093
摘要： A snubber set (30) for a helicopter rotor (10) is comprised of an inner race (44), an intermediate race (45), a preload plate (46), an inner portion (48) having alternating laminates of elastomer (52) and metal shims (54) which are spherically shaped, and an outer portion (50) having alternating laminates of elastomer (58) and metal shims (60) which are flat. The flat laminates (58) are comprised of a center portion (61) made from a high loss elastomer and a peripheral portion (62) made from a high shear strength elastomer.
摘要翻译：用于直升机转子（10）的缓冲装置（30）包括内座圈（44），中间座圈（45），预压板（46），具有交替的弹性体层压体（52）的内部部分）和具有球形的金属垫片（54），以及具有交替的弹性体（58）的层压体和金属垫片（60）的外部部分（50）。扁平层压板58由高损耗弹性体制成的中心部分61和由高剪切强度弹性体制成的周边部分62构成。

15. 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.

16. 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。

17. 发明授权

US5242267A Bearingless main rotor assembly torque tube 失效
标题翻译：无轴承主转子总成扭矩管
公开(公告)号：US5242267A
公开(公告)日：1993-09-07
申请号：US1943
申请日：1993-01-08
申请人： Francis E. Byrnes , I. Lawrence Cullen, III
发明人： Francis E. Byrnes , I. Lawrence Cullen, III
IPC分类号： B64C27/48
CPC分类号： B64C27/48
摘要： A composite torque tube for a bearingless main rotor (BMR) assembly that is optimally fabricated to meet torsional stiffness, fatigue strength, and buckling strength design constraints at minimal unit weight. The composite torque tube includes a strengthened inboard section for mechanically coupling the torque tube in combination with the hub structure of the BMR assembly, a strengthened outboard section for mechanically coupling the torque tube in combination with a corresponding main rotor blade, and an intermediate section that is operative to accommodate the pitch, flapwise, and/or edgewise loads acting on the BMR assembly during operation thereof. The intermediate section of the torque tube has a constant wall thickness and is formed from continuous filament windings having a predetermined fiber orientation within a broad range of about +/-18.degree. to about +/-40.degree. and/or a narrow range of about +/-26.degree. to about +/-35.degree.. The torque tube is preferably formed from continuous filament windings having an optimal fiber orientation of about +/-35.degree. to provide an intermediate section having a minimal torque tube wall thickness.
摘要翻译：用于无轴承主转子（BMR）组件的复合扭矩管，其被最佳地制造以在最小单位重量下满足扭转刚度，疲劳强度和屈曲强度设计约束。复合扭矩管包括加强的内侧部分，用于将扭矩管与BMR组件的轮毂结构组合机械联接，用于将扭矩管与相应的主转子叶片机械联接的加强外侧部分和中间部分，可操作以适应作用在BMR组件上的俯仰，翻转和/或沿边的载荷。扭矩管的中间部分具有恒定的壁厚，并且由具有预定纤维取向的连续细丝绕组形成，其宽度范围约为+/- 18°至约+/- 40°，和/或约为 +/- 26度至约+/- 35度。扭矩管优选由具有约+/- 35°的最佳纤维取向的连续细丝绕组形成，以提供具有最小扭矩管壁厚度的中间部分。

18. 发明授权

US5120195A Clevis joint capable of accommodating substantial pivotal motion between its joined members and loading along its axis 失效
标题翻译： CLEVIS联合能力接受其加入的会员并在其轴上载入物质运动
公开(公告)号：US5120195A
公开(公告)日：1992-06-09
申请号：US602456
申请日：1990-10-23
申请人： David N. Schmaling , Francis E. Byrnes
发明人： David N. Schmaling , Francis E. Byrnes
IPC分类号： B64C27/35 , B64C27/605 , F16C11/04 , F16F1/393 , F16F1/41
CPC分类号： B64C27/605 , B64C27/35 , F16F1/3935 , F16F1/41 , F16C11/045
摘要： An improved clevis joint capable of withstanding substantial pivotal motion between its joined members and loading along its axis. An improved clevis joint wherein the parts joined thereby are pivotally connected by two sets of elastomeric bearings which are free to rotate about the joint axis and which envelope and support a free floating centering pin from the joined members so that during motion between the joined members, said elastomeric bearing sets share the rotary motion due to the rotating of the connecting pin.

19. 发明授权

US5110260A Articulated helicopter rotor within an improved blade-to-hub connection 失效
标题翻译：在改进的叶片到座椅连接中的直型直升机转子
公开(公告)号：US5110260A
公开(公告)日：1992-05-05
申请号：US628270
申请日：1990-12-17
申请人： Francis E. Byrnes , Edward S. Hibyan , William L. Noehren
发明人： Francis E. Byrnes , Edward S. Hibyan , William L. Noehren
IPC分类号： B64C27/48 , B64C27/33 , B64C27/35
CPC分类号： B64C27/33 , B64C27/35
摘要： An articulated helicopter rotor wherein the blade-to-hub connection consists of a spherical elastomeric bearing connected to the hub and a composite yoke connected thereto in series and consisting of a plurality of unidirectional high strength fibers bonded together to form a continuous strap which passes through a central opening in the elastomeric bearing and is pin-wrap connected to the hub at a single station and to the blade at two spaced stations produces a construction which is light in weight, easy to manufacture, ballistrically tolerant, redundant, and readily visually inspectable for structural integrity.

20. 发明授权

US5092738A Flexbeam helicopter rotor with improved snubber-vibration damper between the torque tube and the flexible spar member 失效
标题翻译： FLEXBEAM直升机转子在扭矩管和柔性螺杆构件之间具有改进的SNUBBER-VIBRATION阻尼器
公开(公告)号：US5092738A
公开(公告)日：1992-03-03
申请号：US505865
申请日：1990-04-06
申请人： Francis E. Byrnes , Frank P. D'Anna
发明人： Francis E. Byrnes , Frank P. D'Anna
IPC分类号： B64C27/48 , B64C27/35 , B64C27/51
CPC分类号： B64C27/35 , B64C27/51
摘要： A flexbeam helicopter rotor having an improved snubber-vibration damper for positioning the flexbeam spar relative to the torque tube, wherein the snubber-damper is an elastomeric bearing having a spherical and a flat portion, and whose laminates are continuous, selectively preloaded and of selected material to provide increased fatigue life, size reduction, reduced laminate stress concentration, and reduced critical design stress in the snubber-vibration damper.

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