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公开(公告)号:DE60225461D1
公开(公告)日:2008-04-17
申请号:DE60225461
申请日:2002-10-24
Applicant: LORD CORP
Inventor: JOLLY MARK R , MARJORAM ROBERT H , KOESTER STEPHEN P , ST CLAIR KENNETH A
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22.
公开(公告)号:CA2248302A1
公开(公告)日:1997-10-02
申请号:CA2248302
申请日:1997-01-14
Applicant: LORD CORP
Inventor: JOLLY MARK R , NORRIS MARK A , ROSSETTI DINO J
Abstract: A method and system/apparatus implementing a non-model based Decentralized Feedforward Adaptive Algorithm (DFAA) for active vibration control of an actively-driven element, such as an Active Vibration Absorber (AVA) (24). The AVA (24)preferably includes an inertial tuning mass (42) and a voice coil assembly (46) and is contained in an active vibration control system (20) wherein the method and system/apparatus reduce vibration of a vibrating member (22) at an attachment point (26) by receiving an error signal from an error sensor (28) such as an accelerometer and a reference signal from a tachometer (32) or accelerometer (34), where the reference signal is correlated to, or indicative of the frequency content of, a primary vibration source (36) and calculating an updated output signal via an electronic controller (39) using the non-model based DFAA to dynamically drive the actively-driven element, such as AVA (24). The method and system/apparatus using DFAA is effective for reduction of both tonal and broadband vibration. The method approaches the performance of Filtered-x LMS control, yet is decentralized and does not require information regarding the plant.
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公开(公告)号:CA2196883A1
公开(公告)日:1996-04-25
申请号:CA2196883
申请日:1995-10-11
Applicant: LORD CORP
Inventor: SCHMIDT WARREN E , IVERS DOUGLAS E , JOLLY MARK R , NORRIS MARK A
IPC: F16F7/10 , F16F15/02 , B64C27/51 , G10K11/178
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公开(公告)号:CA2889076C
公开(公告)日:2021-01-05
申请号:CA2889076
申请日:2013-10-24
Applicant: LORD CORP
Inventor: JOLLY MARK R , ALTIERI RUSSELL E , BADRE-ALAM ASKARI , OWENS JONATHAN M , HUNTER ANTHONY , JONES BRADLEY N , CARR BRIAN , HOLTON BEN , CADY ERIC
Abstract: The invention provides a system for creating a prescribed vibration profile on a mechanical device comprising a sensor (30) for measuring an operating condition of the mechanical device, a circular force generator CFG (20) for creating a controllable rotating force vector comprising a controllable force magnitude, a controllable force phase and a controllable force frequency, a controller (22) in electronic communication with said sensor and said circular force generator, the controller operably controlling the controllable rotating force vector, wherein the difference between the measured operating condition and a desired operating condition is minimized.
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公开(公告)号:CA2726629A1
公开(公告)日:2009-12-10
申请号:CA2726629
申请日:2009-06-02
Applicant: LORD CORP
Inventor: CARLSON J DAVID , JOLLY MARK R , IVERS DOUGLAS E
IPC: F16F9/53
Abstract: A magneto-rheological fluid valve includes a magnetic field generator having at least one electromagnetic coil (204) and at least one magnetic pole having a pole length Lm.The magneto-rheological fluid valve further includes at least one flow channel (118) adjacent to the electromagnetic coil. The at least one flow channel has a gap width g, wherein the ratio Lm/g is greater than or equal to 15.
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公开(公告)号:DE69215829T2
公开(公告)日:1997-04-03
申请号:DE69215829
申请日:1992-10-02
Applicant: LORD CORP
Inventor: HODGSON DOUGLAS A , NOBLES CHARLES M , JONES PETER J , JOLLY MARK R , MARGOLIS DONALD L
IPC: F16F13/08 , B64D27/40 , F16F7/10 , F16F9/06 , F16F13/26 , F16F15/027 , F16F15/02 , F16F13/00 , B64C27/00
Abstract: A fluid mount with the capability of actively controlling the amount of vibrational energy transmitted thereacross. An actuator (36) is provided in series or in parallel with the inertia track passageway (20) of a double pumper isolation mount to permit the dynamic stiffness of the mount to be varied so as to control the amount of vibrational energy transmitted in a desired manner. A control system for permitting frequency-shaped force feedback control of the device is also disclosed. Utilization of the device as a tuned absorber is also described.
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公开(公告)号:DE69013464T2
公开(公告)日:1995-02-23
申请号:DE69013464
申请日:1990-11-02
Applicant: LORD CORP
Inventor: WOLFE PAUL T , JOLLY MARK R
IPC: B60G13/18 , B60G17/019 , F16F15/03 , G01P3/52 , B60G17/015 , F16F15/02
Abstract: A transducer (26) is directly associated with a fluid-type damper (18) having a cover member (36) and a cylinder member (28) that undergo telescopic movement relative to each other in response to relative movement between vehicle components (12,14) interconnected by the damper (26). In the preferred embodiments, both a passive electrical coil (40) and a magnet (44) are mounted upon the cover member (36), in fixed relationship to each other. Relative axial telescoping movement between the cover member (36) and the cylinder member (28) of the damper (26) changes the flux field of the magnet (44) and induces in the coil (40) a voltage which is proportional to the relative velocity between the damper members (36,28) and thus between the vehicle components (12,14) interconnected by the damper (26). In an alternative embodiment, the magnet (44 min c) is mounted upon an end portion of the damper cylinder member (28c).
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公开(公告)号:MX2015004923A
公开(公告)日:2015-10-20
申请号:MX2015004923
申请日:2013-10-24
Applicant: LORD CORP
Inventor: CADY ERIC , CARR BRIAN , JOLLY MARK R , ALTIERI RUSSELL E , BADRE-ALAM ASKARI , OWENS JONATHAN M , HUNTER ANTHONY , JONES BRADLEY N , HOLTON BEN
Abstract: La invención proporciona un sistema para crear un perfil de vibración preestablecido en un dispositivo mecánico que comprende un sensor para medir una condición operativa del dispositivo mecánico, un generador de fuerza circular para crear un vector de fuerza de rotación controlable que comprende una magnitud de fuerza controlable, una fase de fuerza controlable y una frecuencia de fuerza controlable, un controlador en comunicación electrónica con el sensor y el generador de fuerza circular, el controlador que controla de forma operativa el vector de fuerza de rotación controlable, en donde se reduce al mínimo la diferencia entre la condición operativa medida y una condición operativa deseada.
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公开(公告)号:CA2889076A1
公开(公告)日:2014-05-01
申请号:CA2889076
申请日:2013-10-24
Applicant: LORD CORP
Inventor: JOLLY MARK R , ALTIERI RUSSELL E , BADRE-ALAM ASKARI , OWENS JONATHAN M , HUNTER ANTHONY , JONES BRADLEY N , CARR BRIAN , HOLTON BEN , CADY ERIC
Abstract: The invention provides a system for creating a prescribed vibration profile on a mechanical device comprising a sensor (30) for measuring an operating condition of the mechanical device, a circular force generator CFG (20) for creating a controllable rotating force vector comprising a controllable force magnitude, a controllable force phase and a controllable force frequency, a controller (22) in electronic communication with said sensor and said circular force generator, the controller operably controlling the controllable rotating force vector, wherein the difference between the measured operating condition and a desired operating condition is minimized.
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30.
公开(公告)号:CA2743447A1
公开(公告)日:2010-06-17
申请号:CA2743447
申请日:2009-12-14
Applicant: LORD CORP
Inventor: JOLLY MARK R , MEYERS ANDREW D
IPC: B64C27/00
Abstract: A rotary blade rotating hub mounted rotating assembly vibration control system (20) including a first imbalance mass concentration rotor (28), a second imbalance mass concentration rotor (44), a third imbalance mass concentration rotor (38'), and a fourth imbalance mass concentration rotor (44'). The first imbalance mass concentration rotor has a first imbalance mass concentration rotor center axis of rotation (136) centered on the rotating assembly center rotation axis (28). The second imbalance mass concentration rotor has a second imbalance mass concentration rotor center axis of rotation (142) centered on the rotating assembly center rotation axis. The third imbalance mass concentration rotor has a third imbalance mass concentration rotor center axis of rotation (136') centered on the rotating assembly center rotation axis. The fourth imbalance mass concentration rotor has a fourth imbalance mass concentration rotor center axis of rotation (142') centered on the rotating assembly center rotation axis. The first and second imbalance mass concentration rotors are driven at a first rotation speed greater than the rotating assembly operational rotation frequency while controlling the rotational position of the first imbalance mass concentration and the second imbalance mass concentration to produce a first rotating net force vector to inhibit a first vibration frequency. The third and fourth imbalance mass concentration rotors are driven at a second rotation speed greater than the rotating assembly operational rotation frequency while controlling the rotational position of the third imbalance mass concentration and the fourth imbalance mass concentration to produce a second rotating net force vector to inhibit a second vibration frequency.
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