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公开(公告)号:US20200047915A1
公开(公告)日:2020-02-13
申请号:US16102229
申请日:2018-08-13
Applicant: Bell Helicopter Textron Inc.
Inventor: Michael Smith , Cheng-Ho Tho , Anand Kumar Marimuthu
Abstract: An aircraft structure protected from collisions with foreign objects includes a first support proximate to an aircraft structure root; first sheets attached to the first support to form a first leading edge portion of the aircraft structure; a second support proximate to an outer end of the aircraft structure; second sheets attached to the second support to form a second leading edge portion; and a door including one or more ribs disposed between the first and second supports and configured to give shape to a third leading edge portion of the aircraft structure; and third sheets, attached to the ribs to form the third portion of the leading edge; wherein the first support, the first sheets, the second support, the second sheets, the one or more ribs, and the third sheets are disposed to mitigate damage from a foreign object collision by absorbing kinetic energy from a collision.
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公开(公告)号:US10112709B2
公开(公告)日:2018-10-30
申请号:US14494036
申请日:2014-09-23
Applicant: BELL HELICOPTER TEXTRON INC.
Inventor: David E. Heverly, II , Frank B. Stamps , Michael Smith
IPC: B64C27/635 , B64C27/51
Abstract: A rotor system includes a hub assembly, a first, second, and third rotor blade rotatably attached to the hub assembly, a first, second, and third damper pivotally attached to the hub assembly and pivotally attached to the first, second, and third rotor blade, respectively, and a control system operably associated with the first, second, and third damper. A method to control vibratory forces exerted on the hub assembly via the first and second rotor blade includes separately controlling a dynamic spring rate of each of the first and second dampers with the control system.
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公开(公告)号:US11548655B2
公开(公告)日:2023-01-10
申请号:US16102229
申请日:2018-08-13
Applicant: Bell Helicopter Textron Inc.
Inventor: Michael Smith , Cheng-Ho Tho , Anand Kumar Marimuthu
Abstract: An aircraft structure protected from collisions with foreign objects includes a first support proximate to an aircraft structure root; first sheets attached to the first support to form a first leading edge portion of the aircraft structure; a second support proximate to an outer end of the aircraft structure; second sheets attached to the second support to form a second leading edge portion; and a door including one or more ribs disposed between the first and second supports and configured to give shape to a third leading edge portion of the aircraft structure; and third sheets, attached to the ribs to form the third portion of the leading edge; wherein the first support, the first sheets, the second support, the second sheets, the one or more ribs, and the third sheets are disposed to mitigate damage from a foreign object collision by absorbing kinetic energy from a collision.
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公开(公告)号:US20190300162A1
公开(公告)日:2019-10-03
申请号:US15942030
申请日:2018-03-30
Applicant: Bell Helicopter Textron Inc.
Inventor: Michael Smith , Maurice Griffin
Abstract: A mounting system for a vibration isolation device comprises a support structure having an opening disposed therein, the opening having a concave recess; a thin elastomeric component attached to a surface of the concave recess; and a spherical elastomeric bearing disposed in the opening and attached to the thin elastomeric component, the spherical elastomeric bearing having a beveled upper portion, a middle portion and a beveled lower portion configured to engage the vibration isolation devices.
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公开(公告)号:US20170291698A1
公开(公告)日:2017-10-12
申请号:US15630535
申请日:2017-06-22
Applicant: Bell Helicopter Textron Inc.
Inventor: Michael Smith , Cheng-Ho Tho , Anand Kumar Marimuthu
IPC: B64C27/00
CPC classification number: B64C27/006 , B26D1/12 , B26D1/25 , B26D2001/006 , B26D2001/0066
Abstract: Some examples of a cable cutting system include a first cutting apparatus that includes a recess to receive a cable. The system includes a second cutting apparatus separate from and attached to the first cutting apparatus. The second cutting apparatus includes multiple cutting surfaces arranged to cut the cable received at the recess.
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公开(公告)号:US20170088257A1
公开(公告)日:2017-03-30
申请号:US14871615
申请日:2015-09-30
Applicant: Bell Helicopter Textron Inc.
Inventor: David E. Heverly, II , Rupinder Singh , Taeoh Lee , Michael Smith
CPC classification number: B64C27/001 , B64C27/06 , B64C2027/004 , F01D21/003 , F01D25/28
Abstract: A vibration control system for a rotorcraft includes at least one of an integrated actuator and an intermediate actuator associated with a first source of vibration, a sensor configured to sense vibration from the first source of vibration, a dedicated actuator configured for association with a fuselage, and a controller configured to receive information from the sensor and configured to control the dedicated actuator and the at least one of the integrated actuator and the intermediate actuator.
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公开(公告)号:US09551393B2
公开(公告)日:2017-01-24
申请号:US14259757
申请日:2014-04-23
Applicant: Bell Helicopter Textron Inc.
Inventor: Michael Smith , Frank Bradley Stamps , Taeoh Lee , David E. Heverly, II
CPC classification number: F16F7/1034 , B64C27/001 , B64C2027/002
Abstract: A rotorcraft vibration isolation system includes a plurality of liquid inertia vibration elimination (LIVE) units mounted on a first rotorcraft surface, an accumulator mounted on a second rotorcraft surface at a location that is remote from locations of the plurality of LIVE units, and a fluid passage to connect the accumulator to the plurality of LIVE units in parallel. The fluid passage has sufficient length to traverse between the location of the accumulator and each location of each LIVE unit. During rotorcraft operation, the second rotorcraft surface experiences lesser periodic vibration than the first rotorcraft surface.
Abstract translation: 旋翼航空器的隔振系统包括安装在第一旋翼飞机表面上的多个液体惯性振动消除(LIVE)单元,在远离多个LIVE单元的位置的位置处安装在第二旋翼航空器表面上的蓄能器,以及流体 通道将蓄能器并联连接到多个LIVE单元。 流体通道具有足够的长度以在蓄能器的位置和每个LIVE单元的每个位置之间穿过。 在旋翼航空器操作期间,第二旋翼飞机表面经历比第一旋翼飞机表面更小的周期性振动。
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公开(公告)号:US20160096621A1
公开(公告)日:2016-04-07
申请号:US14506286
申请日:2014-10-03
Applicant: Bell Helicopter Textron Inc.
Inventor: Michael Smith , Cheng-Ho Tho , Anand Kumar Marimuthu
IPC: B64C27/00
CPC classification number: B64C27/006 , B26D1/12 , B26D1/25 , B26D2001/006 , B26D2001/0066
Abstract: Some examples of a cable cutting system include a first cutting apparatus that includes a recess to receive a cable. The system includes a second cutting apparatus separate from and attached to the first cutting apparatus. The second cutting apparatus includes multiple cutting surfaces arranged to cut the cable received at the recess.
Abstract translation: 电缆切割系统的一些示例包括第一切割装置,其包括用于接收电缆的凹部。 该系统包括与第一切割装置分离并附接到第一切割装置的第二切割装置。 第二切割装置包括多个切割表面,其设置成切割在凹部处接收的电缆。
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公开(公告)号:US10703465B2
公开(公告)日:2020-07-07
申请号:US15942030
申请日:2018-03-30
Applicant: Bell Helicopter Textron Inc.
Inventor: Michael Smith , Maurice Griffin
Abstract: A mounting system for a vibration isolation device comprises a support structure having an opening disposed therein, the opening having a concave recess; a thin elastomeric component attached to a surface of the concave recess; and a spherical elastomeric bearing disposed in the opening and attached to the thin elastomeric component, the spherical elastomeric bearing having a beveled upper portion, a middle portion and a beveled lower portion configured to engage the vibration isolation devices.
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公开(公告)号:US10196136B2
公开(公告)日:2019-02-05
申请号:US15630535
申请日:2017-06-22
Applicant: Bell Helicopter Textron Inc.
Inventor: Michael Smith , Cheng-Ho Tho , Anand Kumar Marimuthu
Abstract: Some examples of a cable cutting system include a first cutting apparatus that includes a recess to receive a cable. The system includes a second cutting apparatus separate from and attached to the first cutting apparatus. The second cutting apparatus includes multiple cutting surfaces arranged to cut the cable received at the recess.
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