公开(公告)号：WO1998006089A1

公开(公告)日：1998-02-12

申请号：PCT/US1997011856

申请日：1997-07-07

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  ROSSETTI, Dino, J. ,  IVERS, Douglas, E. ,  NORRIS, Mark, A. ,  HEATH, Michael, C. ,  SOUTHWARD, Steve, C.

IPC: G10K11/178

CPC classification number: G10K11/17883 ,  G10K11/17854 ,  G10K11/17857 ,  G10K2210/121 ,  G10K2210/1281 ,  G10K2210/129 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3051 ,  G10K2210/3211 ,  G10K2210/501

Abstract: An Active Structural Control (ASC) system (10) and method which includes a plurality of Active Vibration Absorbers (AVAs) (40) attached to a yoke (32) included within a pylon structure (28) preferably comprising a spar (38) and a yoke (32) which is located intermediate between an aircraft fuselage (20) and an aircraft engine (18) for controlling acoustic noise and/or vibration generated within the aircraft's cabin (44) due to unbalances in the aircraft engine (18). The ASC system (10) includes a plurality of error sensors (42 or 63) for providing error signals, and at least one reference sensor (49 or 50) for providing reference signals indicative of the N1 and/or N2 engine rotations and/or vibrations, and a preferably digital electronic controller (46) for processing the error and reference signal information to provide output signals to dynamically vibrate the plurality of AVAs (40) attached to the yoke (32). The AVAs (40) preferably act in a radial, tangential, or fore and aft directions and may be located at the terminalend and/or at the base portion of the yoke (32). Further, the AVAs (40) may be Single Degree Of Freedom (SDOF) or Multiple Degree Of Freedom (MDOF) and may be tuned to have a passive resonance which substantially coincides with the N1 and/or N2 engine rotation and/or vibrations. In another aspect, reference signal processing is described which includes a modulo counter, a lookup table, and a digital IO device.

Abstract translation: 一种主动结构控制（ASC）系统（10）和方法，其包括附接到包括在塔结构（28）内的轭架（32）的多个主动减振器（AVAs）（40），优选地包括翼梁（38）和 位于飞行器机身（20）和飞机发动机（18）之间的轭架（32），用于控制由于飞行器引擎（18）中的不平衡而在飞机机舱（44）内产生的声音噪声和/或振动。 ASC系统（10）包括用于提供误差信号的多个误差传感器（42或63），以及用于提供指示N1和/或N2发动机旋转的参考信号的至少一个参考传感器（49或50）和/或 振动和优选数字电子控制器（46），用于处理误差和参考信号信息以提供输出信号以动态地振动附接到轭架（32）的多个AVA（40）。 AVA（40）优选地以径向，切向或前后方向作用，并且可以位于轭架（32）的末端和/或基座部分处。 此外，AVA（40）可以是单自由度（SDOF）或多自由度（MDOF），并且可以被调谐为具有与N1和/或N2发动机旋转和/或振动基本一致的无源共振。 在另一方面，描述了包括模计数器，查找表和数字IO设备的参考信号处理。

公开(公告)号：WO1997035124A1

公开(公告)日：1997-09-25

申请号：PCT/US1997002333

申请日：1997-02-18

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  GWINN, James, T.

IPC: F16F03/10

CPC classification number: F16F3/10 ,  F16F2230/0047

Abstract: A hybrid elastomer-and-metal spring isolator (20) with a low natural frequency. A fully bonded sandwich mount (22) has cored pockets (28) that receive metal coil springs (30). Extruded cavities (32) on the lower (26L) and upper (26U) plates of the sandwich mount (22) extend into the pockets (28) within the interior of the coiled springs (30) and receive a tension bolt (40) and double lock-nut assembly (42) to secure the separate lower cavities to the isolator. A preload retention nut (48) engages a protruding portion of the tension bolt (40) and preloads the coil springs (30) to an amount equal to their static load. This hybrid isolator (20) has particular application in mounting large (30 ton) diesel engines. The isolator assembly provides a natural frequency that is between 3 and 5 Hz, outside the normal idling frequencies of the engine so as to avoid resonance.

公开(公告)号：WO1997033658A1

公开(公告)日：1997-09-18

申请号：PCT/US1997002336

申请日：1997-02-18

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  CARLSON, J., David

IPC: A63B21/005

CPC classification number: F16D57/002 ,  A63B21/0056 ,  A63B21/00845 ,  A63B21/4047 ,  A63B23/03508 ,  A63B23/0494 ,  A63B23/08 ,  A63B23/085 ,  A63B23/1281 ,  A63B23/14 ,  A63B24/00 ,  A63B2220/16 ,  Y10S482/903

Abstract: A portable controllable fluid device (20a) for rehabilitation of injured limbs, appendages and joints (33a). The rehabilitation device (20a) includes a first bracket (22a) for fixedly securing to a first body part, such as a lower leg (25), a second bracket (24a) for fixedly securing to a second body part, such as a foot (26), and a controllable fluid brake (27a) such as a magnetorheological fluid brake including a magnetorheological fluid contained therein having a carrier fluid and disbursed magnetic particles, attached between the first bracket (22a) and second bracket (24a). The controllable fluid brake (27a), preferably acts in a rotary fashion and provides resistive forces about an axis adjacent said body joint (33a) to exercise the muscles upon movement of said first bracket (22a) relative to said second bracket (24a) resulting from movement of the user's first body part relative to the second body part. The device (20a) is portable and can be used to rehabilitate, for example, a wrist, elbow, knee or ankle joint in the user's home. The device (20a) allows variable adjustment of the level of resistance felt by the rehabilitating user by adjusting a controller (28a). In another embodiment, feedback information is used to control the level of resistance according to a predetermined force/torque profile(s). A potentiometer (53d) provides the feedback information regarding position to the controller (28a).

Abstract translation: 一种用于修复受伤肢体，附肢和关节（33a）的便携式可控流体装置（20a）。 康复装置（20a）包括用于固定地固定到诸如小腿（25）的第一主体部分的第一支架（22a），用于固定地固定到第二主体部分的第二支架（24a） （26），以及安装在第一支架（22a）和第二支架（24a）之间的可控流体制动器（27a），例如包含其中容纳有磁流变流体的磁流变流体制动器，具有载体流体和分散的磁性颗粒。 可控流体制动器（27a）优选地以旋转的方式起作用，并且围绕邻近所述主体接头（33a）的轴线提供阻力，以在所述第一支架（22a）相对于所述第二支架（24a）移动时锻炼肌肉，导致 从用户的第一身体部分相对于第二身体部分的移动。 装置（20a）是便携式的，并且可以用于在用户的家中恢复例如手腕，肘，膝或踝关节。 设备（20a）允许通过调节控制器（28a）可变地调节由修复用户感到的电阻水平。 在另一个实施例中，反馈信息用于根据预定的力/转矩曲线来控制电阻水平。 电位器（53d）向控制器（28a）提供关于位置的反馈信息。

公开(公告)号：WO1997028381A1

公开(公告)日：1997-08-07

申请号：PCT/US1996017492

申请日：1996-10-29

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  MICHAEL, Robert, J. ,  SWOYER, Andrew, B., Jr. ,  FLOWER, Wallace, C.

IPC: F16D03/64

CPC classification number: F16F15/126 ,  F16F15/129

Abstract: The present invention provides an auxiliary torsional damper (110) of the surface-effect type capable of damping torsional spikes which may occur during operational transition through the system's resonance frequency. Preferably, the auxiliary damper (110) will be designed with a decoupling feature (114) such that the damper (110) will only provide auxiliary torsional damping for torsional oscillations which surpass a threshold amplitude. Since the surface-effect damper of the present invention is deflection dependent, the larger the magnitude of the torsional spike, the larger the damping that will be applied thereto.

Abstract translation: 本发明提供一种表面效应型的辅助扭转阻尼器（110），该辅助扭转阻尼器能够抑制在通过系统的共振频率的操作过渡期间可能发生的扭转尖峰。 优选地，辅助阻尼器（110）将被设计成具有去耦特征（114），使得阻尼器（110）将仅为超过阈值振幅的扭转振荡提供辅助扭转阻尼。 由于本发明的表面效应阻尼器是偏转依赖的，所以扭转尖峰的幅度越大，施加到其上的阻尼就越大。

公开(公告)号：WO1997012360A1

公开(公告)日：1997-04-03

申请号：PCT/US1996012524

申请日：1996-07-31

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  BILLOUD, Guy, D.

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K2210/1053 ,  G10K2210/106 ,  G10K2210/1281 ,  G10K2210/1282 ,  G10K2210/3027 ,  G10K2210/3214 ,  G10K2210/3219 ,  G10K2210/3221

Abstract: An active noise control system (20) which generates via an electronic controller (22) a canceling signal(s) which are responsive to a signal from an error sensor(s) (28) to drive a speaker (30) or array of speakers. Each speaker (30) is contained within an enclosure (33) and is inversely and rigidly mounted therein. The enclosure (33) attaches to the trim panels (25) attached to the closed structure (34) and the canceling sound wave form is directly primarily toward the interior surface (36) of the trim (25). Preferably, the speaker(s) (30) are flexibly suspended with mounts (38) to the trim (25). The enclosure (33) preferably includes planar wave guide means such as escapeways (40) for initially directing the canceling sound wave form (anti-noise) in a plane substantially parallel to the surface of the trim (25).

Abstract translation: 一种主动噪声控制系统（20），其经由电子控制器（22）产生响应于来自误差传感器（28）的信号以驱动扬声器（30）或扬声器阵列的抵消信号 。 每个扬声器（30）被包含在外壳（33）内并且反向且刚性地安装在其中。 外壳（33）附接到附接到封闭结构（34）的装饰板（25），并且抵消声波形式直接主要朝向装饰件（25）的内表面（36）。 优选地，扬声器（30）通过安装件（38）被柔性地悬挂到修剪件（25）上。 外壳（33）优选地包括平面波导装置，例如用于最初在基本上平行于装饰件（25）的表面的平面中引导抵消声波形式（抗噪声）的封隔板（40）。

公开(公告)号：WO1996033452A1

公开(公告)日：1996-10-24

申请号：PCT/US1996002053

申请日：1996-02-14

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  THORN, Richard, P.

IPC: G05G05/16

CPC classification number: A47C1/03 ,  G05G5/16 ,  G05G9/047

Abstract: A locking and positioning device (20) for allowing unlocking and adjustment and then relocking of multiple degrees of freedom with a singular actuation mechanism (26). The device (20) includes a first locking mechanism (22) and a second separate, independent, and spaced apart locking mechanism (24) both of which are actuated by a singular actuation device (26). The first locking mechanism and second locking mechanism may be locked simultaneously or independently with the same actuation device (26).

Abstract translation: 一种锁定和定位装置（20），用于允许用单个致动机构（26）解锁和调整然后重新锁定多个自由度。 装置（20）包括第一锁定机构（22）和第二分离的，独立的和间隔开的锁定机构（24），两者均由单个致动装置（26）致动。 第一锁定机构和第二锁定机构可以与相同的致动装置（26）同时或独立地锁定。

公开(公告)号：WO1996033356A1

公开(公告)日：1996-10-24

申请号：PCT/US1996002043

申请日：1996-02-14

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  CARLSON, J., David

IPC: F16F09/53

CPC classification number: F16F9/535

Abstract: A semi-active device (20) for damping motion between structures having multi-degrees of freedom. A magnetic field produced by a permanent magnet, a coil, or a combination thereof, change the rheological properties of an MR fluid (40) to effectively lock up the components and the structures to which they are attached to serve as a brake or damper of the associated compound motion. A system (21) employing the MR devices (20) includes a motion detection sensor (15) and a controller (19) to actuate the MR devices (20) when a predetermined motion threshold is exceeded.

Abstract translation: 一种用于在具有多自由度的结构之间阻尼运动的半有源装置（20）。 由永磁体，线圈或其组合产生的磁场改变MR流体（40）的流变特性，以有效地锁定组件及其附接的结构，用作制动器或阻尼器 相关的复合运动。 使用MR装置（20）的系统（21）包括运动检测传感器（15）和当超过预定运动阈值时致动MR装置（20）的控制器（19）。

公开(公告)号：WO1996004492A1

公开(公告)日：1996-02-15

申请号：PCT/US1995009613

申请日：1995-07-31

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  MCGUIRE, Dennis, P.

IPC: F16F13/12

CPC classification number: F16F13/08 ,  B64C27/51 ,  F16F9/103 ,  F16F9/12

Abstract: The invention relates to a fluid device (20) for providing high load carrying capacity in one direction and which provides a high level of damping along a substantially perpendicular direction. This is achieved by a device which includes an inner member (22) and an outer member (24) and a flexible section (28) causing a connection therebetween, said flexible section (28) exhibiting a substantially higher stiffness along one axis, a fluid cavity (34) formed within said device (20), a piston (38) attached to one of said inner member (22) and said outer member (24), said piston (38) being substantially surrounded by, and submersed in said fluid. In one embodiment, the piston (38) includes a piston area Ap which is substantially greater than 1/2 the fluid cavity area Ac. Movement of the piston (38) within the fluid cavity (34) causes a damping force comprising a throttling component as well as a viscous shear component. Means are disclosed for substantially increasing the viscous shear component and throttling component including novel piston concepts. This invention has particular utility for use in hingeless rotor systems for helicopters.

Abstract translation: 本发明涉及一种用于在一个方向上提供高承载能力并且沿大致垂直方向提供高水平阻尼的流体装置（20）。 这通过包括内部构件（22）和外部构件（24）的装置和在其间形成连接的柔性区段（28）来实现，所述柔性区段（28）沿着一个轴线具有显着更高的刚度，流体 在所述装置（20）内形成的空腔（34），附接到所述内部构件（22）和所述外部构件（24）中的一个的活塞（38），所述活塞（38）基本上被所述流体 。 在一个实施例中，活塞（38）包括活塞面积Ap，其大致大于流体腔面积Ac的1/2。 活塞（38）在流体腔（34）内的运动引起包括节流部件以及粘性剪切部件的阻尼力。 公开了用于显着增加包括新型活塞概念的粘性剪切部件和节流部件的装置。 本发明特别适用于用于直升机的无铰链转子系统。

公开(公告)号：WO1995017313A1

公开(公告)日：1995-06-29

申请号：PCT/US1994014741

申请日：1994-12-21

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  MARGOLIS, Donald, L. ,  JOLLY, Mark, R. ,  SCHROEDER, Warren, R. ,  HEATH, Michael, C. ,  IVERS, Douglas, E.

IPC: B60G17/015

CPC classification number: B60N2/501 ,  B60G13/14 ,  B60G17/0157 ,  B60G17/04 ,  B60G99/004 ,  B60G2300/60 ,  B60K5/00 ,  B60N2/503 ,  B60N2/505 ,  B60N2/508 ,  B60N2/527 ,  B60N2/544 ,  F16F15/005 ,  F16F15/02 ,  F16F15/03

Abstract: A non-active regenerative system (20) which regenerates energy by taking energy from relative motion of members (22) and (24) and using it later to accomplish overall improved performance and eliminates the need for an active source to provide assisting forces. The non-active regenerative system (20) includes an energy transformer element (26) interconnecting a first member (22) and a second member (24) which converts relative motion to an energy in storable form, and an energy management element (30) which channels the flow of energy to and from an energy storage element (32) to produce assisting forces. The energy management element (30) is commanded by a controller (36) which is responsive to sensors (34a, 34b, 34c, and 34d) which provide signals indicative of the system condition. Power is supplied to the energy management (30), sensors (34a, 34b, 34c, and 34d), and controller (36), only if required, by power source (40). However, no active power source is needed to drive the transformer element (26).

Abstract translation: 一种非活性再生系统（20），其通过从构件（22）和（24）的相对运动中获取能量来再生能量，并且稍后使用它来实现总体改进的性能，并且不需要主动源来提供辅助力。 非活性再生系统（20）包括将第一构件（22）和第二构件（24）互连的能量变换器元件（26），其将相对运动转换成可存储形式的能量，以及能量管理元件（30） 其将能量流向和从储能元件（32）引导以产生辅助力。 能量管理元件（30）由控制器（36）命令，控制器响应于提供指示系统状况的信号的传感器（34a，34b，34c和34d）。 只有在需要的情况下，通过电源（40）将功率供应给能量管理（30），传感器（34a，34b，34c和34d）以及控制器（36）。 然而，不需要有源电源来驱动变压器元件（26）。

公开(公告)号：WO1994017694A1

公开(公告)日：1994-08-18

申请号：PCT/US1994001452

申请日：1994-02-09

Applicant: LORD CORPORATION

Inventor： LORD CORPORATION ,  BRAEGER, Denise, M. ,  GWINN, James, T. ,  GUREGHIAN, Richard, S.

IPC: A47B91/00

CPC classification number: B60B33/0028 ,  B60B33/045 ,  Y10T16/212

Abstract: Three embodiments of a shock-isolating caster (10). A surface-effect damper engages at least one of a wheel element (20) and an intermediate structural member to dampen vibration and shock loads which would otherwise be transmitted from the wheel element (20) through the intermediate structure and mounting member (12) to the equipment supporting cart. A first embodiment positions the damper between an outer wheel rim (25) and an inner wheel hub (24). Second and third embodiments mount the wheel on a pivotable arm and dampen the movement of the arm. Capability to adjust damping levels is provided.

Abstract translation: 防震脚轮（10）的三个实施例。 表面效应阻尼器与轮元件（20）和中间结构构件中的至少一个接合，以阻尼振动和冲击载荷，否则其将从轮元件（20）通过中间结构和安装构件（12）传递到 设备配套车。 第一实施例将阻尼器定位在外轮缘（25）和内轮毂（24）之间。 第二和第三实施例将车轮安装在可枢转臂上并阻尼臂的移动。 提供了调节阻尼水平的能力。