公开(公告)号：US20150308534A1

公开(公告)日：2015-10-29

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

IPC: F16F7/10 ,  B64C27/00

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。

公开(公告)号：US20150139800A1

公开(公告)日：2015-05-21

申请号：US14086446

申请日：2013-11-21

Applicant: Bell Helicopter Textron Inc.

Inventor： Matthew W. Hendricks ,  Maurice D. Griffin ,  Michael R. Smith ,  Taeoh Lee

IPC: B64C27/00 ,  F16F15/10 ,  B64C27/04

CPC classification number: B64C27/001 ,  B64C2027/002 ,  B64C2027/004 ,  F16F15/10

Abstract: A restraint system for a transmission in an aircraft can include a first strut having a first fluid chamber, a first piston resiliently coupled to a first housing with a first elastomeric member. The restraint system can include a second strut having second fluid chamber, a second piston resiliently coupled to a second housing with a second elastomeric member. The restraint system can include a fluid line between the first fluid chamber and the second fluid chamber. The first strut and the second strut collectively provide not only torque restraint, but also torque measurement and fore/aft vibration isolation.

Abstract translation: 用于飞行器中的变速器的约束系统可以包括具有第一流体室的第一支柱，与第一弹性体构件弹性地联接到第一壳体的第一活塞。 约束系统可以包括具有第二流体室的第二支柱，与第二弹性体构件弹性地联接到第二壳体的第二活塞。 约束系统可以包括在第一流体室和第二流体室之间的流体管线。 第一支柱和第二支柱不仅集中提供扭矩约束，而且还提供扭矩测量和前/后隔振。

公开(公告)号：US20140263825A1

公开(公告)日：2014-09-18

申请号：US13840408

申请日：2013-03-15

Applicant: Bell Helicopter Textron Inc.

Inventor： David E. Heverly, II ,  Taeoh Lee

IPC: F16F15/027 ,  B64D27/00 ,  F16F9/512

CPC classification number: F16F15/0275 ,  B64C27/001 ,  B64C2027/002 ,  B64C2027/004 ,  F16F9/5126 ,  F16F15/027

Abstract: An apparatus is disclosed includes an active vibration isolation system that includes a vibration isolator, a dual fluid pump in fluid communication with the vibration isolator and a hydraulic system, wherein the dual fluid pump is configured to segregate a tuning fluid from a hydraulic fluid and an electric-hydraulic servo valve in fluid communication with the dual fluid pump.

Abstract translation: 所公开的装置包括主动隔振系统，其包括隔振器，与隔振器流体连通的双流体泵和液压系统，其中双流体泵构造成将调节流体与液压流体和 电液伺服阀与双流体泵流体连通。

公开(公告)号：US20130306420A1

公开(公告)日：2013-11-21

申请号：US13956490

申请日：2013-08-01

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： Michael R. Smith ,  Frank B. Stamps ,  Taeoh Lee ,  David E. Heverly, JR. ,  Robert J. Pascal

IPC: B64C27/00

CPC classification number: B64C27/001 ,  B64C2027/005 ,  F16F7/1005 ,  F16F7/1034 ,  F16F7/108 ,  F16F13/08 ,  F16F13/24 ,  F16F13/26 ,  F16F15/005 ,  F16F15/027

Abstract: A tunable vibration isolator with active tuning elements having a housing, fluid chamber, and at least one tuning port. A piston is resiliently disposed within the housing. A vibration isolation fluid is disposed within the fluid chambers and the tuning ports. The tunable vibration isolator may employ either a solid tuning mass approach or a liquid tuning mass approach. The active vibration elements are preferably solid-state actuators.

Abstract translation: 具有主动调谐元件的可调节隔振器具有壳体，流体室和至少一个调谐端口。 活塞弹性地设置在壳体内。 振动隔离流体设置在流体室和调谐端口内。 可调谐隔振器可以采用固体调谐质量方法或液体调节质量方法。 主动振动元件优选为固态致动器。

公开(公告)号：US09777788B2

公开(公告)日：2017-10-03

申请号：US13736687

申请日：2013-01-08

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： Taeoh Lee ,  David E. Heverly, II ,  Matthew W. Hendricks ,  Maurice Griffin ,  Michael R. Smith

IPC: F16F7/00 ,  B64C27/00 ,  F16F13/24

CPC classification number: F16F7/00 ,  B64C27/001 ,  B64C2027/002 ,  F16F13/24

Abstract: The vibration suppression system includes a vibration isolator located in each corner in a four corner pylon mount structural assembly. The combination of four vibration isolators, two being forward of the transmission, and two being aft of the transmission, collectively are effective at isolating main rotor vertical shear, pitch moment, as well as roll moment induced vibrations. Each opposing pair of vibration isolators can efficiently react against the moment oscillations because the moment can be decomposed into two antagonistic vertical oscillations at each vibration isolator. A pylon structure extends between a pair of vibration isolators thereby allowing the vibration isolators to be spaced a away from a vibrating body to provide increased control.

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

IPC: B64C27/00 ,  F01D21/00 ,  B64C27/06 ,  F01D25/28

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.

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

IPC: B64C27/00 ,  F16F7/10

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。

公开(公告)号：US20160341226A1

公开(公告)日：2016-11-24

申请号：US14717516

申请日：2015-05-20

Applicant: Bell Helicopter Textron Inc.

Inventor： David E. Heverly, II ,  Taeoh Lee

IPC: F15B15/22

CPC classification number: F04B1/00 ,  F04B11/00 ,  F04B11/005 ,  F04B53/001 ,  F16F9/00

Abstract: A vibration isolation system includes a vibration isolator configured to flow a fluid. A fluid pumping system is connected to the vibration isolator. The fluid pumping system includes a fluid flow pathway configured to flow the fluid to the vibration isolator. The fluid pumping system includes a piston assembly positioned in the fluid flow pathway. The piston assembly includes a first piston and a second piston configured to displace the fluid in opposite directions through the fluid flow pathway. The vibration isolation system includes a fluid flow augmentation system, which includes an eccentric member positioned between the first piston and the second piston. The fluid flow augmentation system is configured to control a flow of the fluid to the vibration isolator through the fluid flow pathway by controlling a displacement of the first piston and the second piston through at least a partial rotation of the eccentric member.

Abstract translation: 振动隔离系统包括配置成流动流体的隔振器。 流体泵送系统连接到隔振器。 流体泵送系统包括被配置为将流体流动到隔振器的流体流动通道。 流体泵送系统包括位于流体流动路径中的活塞组件。 活塞组件包括第一活塞和第二活塞，第二活塞构造成使流体沿相反方向移动通过流体流动路径。 该隔振系统包括流体流量增加系统，其包括定位在第一活塞和第二活塞之间的偏心构件。 流体流量增加系统构造成通过至少部分偏心构件的旋转来控制第一活塞和第二活塞的位移，从而通过流体流动路径控制流体到隔振器的流动。

公开(公告)号：US09145946B2

公开(公告)日：2015-09-29

申请号：US13840408

申请日：2013-03-15

Applicant: Bell Helicopter Textron Inc.

Inventor： David E. Heverly, II ,  Taeoh Lee

IPC: F16F15/027 ,  F16F9/512 ,  B64C27/00

CPC classification number: F16F15/0275 ,  B64C27/001 ,  B64C2027/002 ,  B64C2027/004 ,  F16F9/5126 ,  F16F15/027

Abstract: An apparatus includes an active vibration isolation system that includes a vibration isolator, a dual fluid pump in fluid communication with the vibration isolator and a hydraulic system, wherein the dual fluid pump is configured to segregate a tuning fluid from a hydraulic fluid and an electric-hydraulic servo valve in fluid communication with the dual fluid pump.

Abstract translation: 一种装置包括主动隔振系统，其包括隔振器，与隔振器流体连通的双流体泵和液压系统，其中双流体泵构造成将调节流体与液压流体和电动液体隔离， 液压伺服阀与双流体泵流体连通。