Inertia Of Damping Mass Dissipates Motion (e.g., Vibration Damper) Patents (Class 188/378)
  • Patent number: 10941833
    Abstract: A vibration isolator with a pneumatic spring that is effective only in vertical direction, the pneumatic spring including a working space in which a vertically effective actuator is disposed.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 9, 2021
    Assignee: Integrated Dynamics Engineering GmbH
    Inventors: Arndt Evers, Frank Hofmann
  • Patent number: 10882609
    Abstract: A damping device is described that is designed to counter the transmission of vibrations to a further element and comprises: a beam element, which extends mainly parallel to an axis, is constrained to the further element and is designed to flexurally oscillate, in use, in a plane parallel to the axis to counter the transmission of vibrations to the further element; an actuator, which comprises a transmission element operatively connected to the beam element and extending mainly along the axis; the actuator being controllable to apply a direct tensile or compressive load along the axis on the transmission element that is variable according to the frequency of the vibrations to be dampened.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: January 5, 2021
    Assignee: LEONARDO S.P.A.
    Inventor: Luigi Maria Bottasso
  • Patent number: 10870483
    Abstract: A suspension device provided with at least one suspension means. The suspension means comprise a tuned mass damper, the damper comprising an inertial mass carried by a mass support. The suspension means include at least a first actuator generating a dynamic force for acting on the swinging motion of the damper. The inertial mass being movable longitudinally in translation relative to the mass support, the suspension device including a second actuator connected to the inertial mass to move the inertial mass longitudinally relative to the mass support.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 22, 2020
    Assignee: AIRBUS HELICOPTERS
    Inventor: Jeremy Jouve
  • Patent number: 10822982
    Abstract: A rotor is provided comprising a centre of mass and a rotational axis and a rotor sealing component extending circumferentially around the rotor for sealing between the rotor and a stator, wherein the centre of mass of the rotor is coincident with the rotational axis, and material of the rotor sealing component is not evenly distributed around its circumference. A stator sealing component in which the material is not evenly distributed around its circumference is also provided.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 3, 2020
    Assignee: ROLLS-ROYCE plc
    Inventor: Jeffrey S. Green
  • Patent number: 10774893
    Abstract: A tuned mass damper for damping an oscillating movement of a structure along a first direction is provided. The tuned mass damper comprises a mass arranged to perform a reciprocating movement along the first direction in response to the oscillating movement of the structure, wherein the mass comprises a braking mechanism configured to at least partially brake the movement of the mass along the first direction when the mass exceeds a predefined speed.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: September 15, 2020
    Assignee: General Electric Renovables Espana, S.L.
    Inventor: Roger Bergua
  • Patent number: 10718399
    Abstract: Anti-vibration support system; applicable in the protection of various apparatuses (E) against seismic movements and vibrations of any kind, comprising: —a lower base consisting of a floating mount (1), forming a resting surface for the apparatus (E) to be protected, and of a fixed mount (2), —an upper base (3) intended to rest on the apparatus (E) to be protected and —side structures (4a, 4b) comprising at least one tilted bar (41) connected by damping elements (42) to the upper base (3) and the fixed mount (2) of the lower base; said side structures (4a, 4b) limiting the movement of the upper base (3) and the apparatus (E) to be protected, at least, in the vertical direction.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: July 21, 2020
    Assignee: TEJASA-TC, S.L.L.
    Inventors: Juan José Martin Hernández, Mahjoub Abdelatif
  • Patent number: 10690220
    Abstract: A mass damper system with a damper mass support receives a damper mass. A guide track and damper mass are in operative connection with one another by a coupling element movable in the guide track between a central position in which the coupling element is free from deflection in circumferential direction of the guide tracks and a deflection position out of the central position. The guide tracks and the coupling element are configured for an order that depends on the number of cylinders of the respective exciting drive. The guide tracks are tailored with respect to their geometric configuration for excitations of a virtual order between a first order associated with excitations of a drive with a first number of cylinders and a second order with which are associated with excitations of a drive with a second number of cylinders.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: June 23, 2020
    Assignee: ZF Friedrichshafen AG
    Inventor: Michael Wirachowski
  • Patent number: 10648117
    Abstract: A laundry treating apparatus is provided. The laundry treating apparatus includes a cabinet, a drum accommodated in the cabinet, a tub accommodating the drum, and a dynamic absorber provided to absorb oscillation of the cabinet. The dynamic absorber includes a support plate coupled to the cabinet, a first moving mass movably provided on the support plate to absorb oscillation transmitted to the cabinet, and a second moving mass movably provided on the support plate to absorb oscillation transmitted to the cabinet. To absorb the oscillation, a time point at which the second moving mass starts relative motion with respect to the support plate is different from that at which the first moving mass starts relative motion with respect to the support plate.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: May 12, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Kiyong An, Minho Park, Kihoon Choi
  • Patent number: 10640210
    Abstract: A vibration control system for an unmanned aerial vehicle (UAV) is disclosed. The system includes a base platform fixedly coupled to a UAV structure, a working platform coupled to the base platform by two or more cables at two or more connection points on the working platform, and two or more actuators positioned either on the base platform or the working platform, each actuator configured to receive a signal to adjust tension in a corresponding cable, wherein by adjusting tension in the two or more cables, natural frequency of the working platform can be adjusted in response to frequency of vibration experienced by the working platform in order to maintain a frequency ratio (FR) of the vibration frequency to the natural frequency at or above a predetermined value.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: May 5, 2020
    Assignee: Purdue Research Foundation
    Inventors: Xiumin Diao, Hao Xiong
  • Patent number: 10644579
    Abstract: A vibration energy harvesting damper (VEHD) that is adjustable to a broad range of frequencies of vibration is provided. The VEHD includes a support structure that is securable to a vibrating object, a tuned mass retained by the support structure and movable in a rectilinear direction, a magnet vibrationally coupled to and spaced apart from the tuned mass, a coil surrounding the magnet, and at least one biasing assembly connecting two or more of the support structure, the tuned mass and the magnet. The at least one biasing assembly includes a fixed biasing member and an adjustable biasing member arranged in parallel. The adjustable biasing member is configured to adjust the combined stiffness coefficient of the biasing assembly.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: May 5, 2020
    Inventors: George Nerubenko, Cyril Nerubenko, Lucy Lebedeva, David Flowers, Volodymyr Gonchar, Roman Musiala, Moshe Michael Haimov, Dmytriy Gurevych
  • Patent number: 10619967
    Abstract: An energy absorber and method are described herein. The energy absorber, in an embodiment, includes a shooting equipment coupler, a base, a support, a plurality of cord segments that couple the base to the support, and an object coupled to the support. The base, support and cord segments are configured so that the cord segments have an initial shape before an aiming force is received, change to an aim response shape after the aiming force is received, and change to a shot response shape after a shot force occurs.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: April 14, 2020
    Inventor: Daniel N. Kelly
  • Patent number: 10584764
    Abstract: A viscous torsional vibration damper of the kind operating on the shear film principle has an annular shaped housing providing an annular working chamber within which is mounted an annular complementary inertia mass ring and a viscous damping fluid substantially fills shear film spaces between the working surfaces of the inertia ring and confronting working surfaces of the housing within the chamber. The cover has one or more lugs extending from the outside of an axially extending wall that engage with lugs inside the housing near the bottom wall. Rotation of the cover relative to the housing causes an axial force through the lugs that forces the cover into sealing engagement with the housing.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: March 10, 2020
    Assignee: Horschel Brothers Precision LLC
    Inventors: Karl G. Horschel, Aaron J. Neyman
  • Patent number: 10584762
    Abstract: A tuned mass system has a bulk mass acted upon by an excitation amplitude and a reaction mass coupled to the bulk mass. A resistance-to-motion controlled coupling mechanism associated with the reaction mass is configured to proportionally modulate independent of excitation force such that the relative phase of the bulk mass and the reaction mass is substantially constant throughout an extended range of excitation amplitude. The resistance-to-motion controlled coupling mechanism is a Variable Aperture Reciprocating Reed (VARR) Valve in one embodiment, and operates as a passive mechanism. In other embodiments, active resistance-to-motion controlled coupling mechanisms are employed.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: March 10, 2020
    Inventors: Robert Berry, Jeff Lindner
  • Patent number: 10563985
    Abstract: An apparatus for determining a spatial disposition of a movable object includes a support base configured to be carried by the movable object, a first inertial sensor coupled to the support base via a first damping element configured to damp motion of the first inertial sensor, and a second inertial sensor coupled to the support base via a second damping element configured to damp motion of the second inertial sensor. The first inertial sensor and the second inertial sensor are of different sensor types. The first damping element and the second damping element have different damping properties.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: February 18, 2020
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Jian Yu Song, Ren Li Shi, Tao Wang
  • Patent number: 10557352
    Abstract: A blisk assembly for vibration dampening includes a disk portion extending circumferentially about a central axis of the blisk, a plurality of blades integrally coupled to the disk, and a piezoelectric damping ring that includes a damping ring and a plurality of piezoelectric elements coupled to the damping ring. The disk portion includes a groove configured to receive the piezoelectric damping ring. As a result of centrifugal forces applied to the piezoelectric damping ring during rotation of the blisk assembly, mechanical energy may be generated at one or more of the plurality of piezoelectric elements, which is converted to electrical energy and transmitted to another one or more of the plurality of piezoelectric elements. Accordingly, the one or more of the piezoelectric elements having received the electricity can convert the electricity to mechanical energy to provide vibration damping.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: February 11, 2020
    Assignee: Rolls-Royce Corporation
    Inventors: Roy D. Fulayter, Daniel Hoyniak
  • Patent number: 10549847
    Abstract: Aircraft landing gear (1) comprising: an axle shaft (2); a strut (3) extending along a main strut axis (Z) and having a first part (3a) carrying the said axle shaft (2) and a second part (3b); a main damper (5) designed to damp axial movements of the first strut part (3a) with respect to the second strut part (3b); a first secondary damper (6a) distinct from the said main damper and designed to damp a movement of angular oscillation, about the axis (Z). The first secondary damper (6a) is carried by the first strut part (3a) and comprises: an inertial mass (M); and means (7a) of connecting the inertial mass (M) to the first strut part (3a) which means are designed to damp rotational movements of this inertial mass (M) about the axis (Z).
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: February 4, 2020
    Assignee: SAFRAN LANDING SYSTEMS
    Inventors: Florent Dauphin, Florent Fortier, Sebastien Dubois
  • Patent number: 10518891
    Abstract: A turbine engine assembly is provided. The assembly includes a stationary component, a drive shaft, and a gearbox coupled along the drive shaft, and coupled to the stationary component. The assembly also includes a vibration-reducing mechanism coupled between the stationary component and the gearbox. The vibration-reducing mechanism is configured to isolate a vibratory response of the gearbox from the stationary component.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: December 31, 2019
    Assignee: General Electric Company
    Inventors: Gert Johannes Van Der Merwe, Charles Stanley Orkiszewski
  • Patent number: 10513814
    Abstract: A washing method comprising: suspending and washing laundry in a washing liquid that is supplied to a laundry tub; agitating and washing the laundry with a baffle in the washing liquid at a liquid level that is lower than a liquid level of the washing liquid that is supplied to the laundry tub during the suspending and washing of the laundry; and increasing or decreasing a liquid level of the washing liquid continuously between the suspending and washing of the laundry and the agitating and washing of the laundry while the laundry tub is spinning.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: December 24, 2019
    Assignee: HAPPY CO., LTD.
    Inventor: Hideo Hashimoto
  • Patent number: 10458513
    Abstract: A damper device according to one embodiment, for example, includes: a rotating member that is rotatable about a rotational axis, the rotating member including a base portion that is plate-like and support portions that is attached to the base portion and extends in an axial direction of the rotational center; and a plurality of weight members disposed partially overlapping each other in the axial direction, the weight members being provided with tracks in respective overlapped parts of the weight members, the tracks guiding the support portion to be swingable with respect to the rotating member, wherein the support portion is shared in the tracks provided in the weight members.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: October 29, 2019
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takuya Fujiwara, Makoto Komuro, Suguru Jimbo, Kosuke Kondo, Masahiko Kobayashi
  • Patent number: 10443502
    Abstract: A rotor stage of a gas turbine engine includes a platform from which rotor blades extend. The platform is provided with a circumferentially extending damper ring, the damper ring having an engagement surface that engages with the platform. The damper ring provides damping through slip between the engagement surface and the platform. The damper ring has a hoop stress that results in a load being provided to the platform from the engagement surface. The load can be optimized in order to provide improved damping.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: October 15, 2019
    Assignee: ROLLS-ROYCE plc
    Inventor: Garry Mark Edwards
  • Patent number: 10400603
    Abstract: Mini-disks of gas turbine engines are provided having an axially extending portion extending axially with respect to an axis of the engine, the axially extending portion configured to engage with a hub arm of a compressor of the engine, a radially extending portion extends radially with respect to the axis, the radially extending portion configured to engage with an attachment of a turbine disk of the gas turbine engine, an intermediate portion extending between the axially extending portion and the radially extending portion, and at least one mini-disk connector configured to engage with a portion of the turbine disk of the gas turbine engine to prevent radial movement of the mini-disk during operation.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: September 3, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Raymond S. Hummel, Julian Partyka
  • Patent number: 10386166
    Abstract: A mounting system for mounting an electronic component (2) in a housing (8) comprises a visco-elastic damping element (14, 20) for damping the transmission of vibration from the housing (8) to the component (2) in use, and a support (24, 52) for supporting the component (2) in the housing (8) independently of the damping element (14, 20) whereby the weight of the component (2) is substantially or completely removed from the damping element (14, 20). The support (24, 52) is configured to be selectively releasable from the component (2) such that the component (2) is then supported only by the damping element (14, 20).
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: August 20, 2019
    Assignee: ATLANTIC INERTIAL SYSTEMS LIMITED
    Inventor: Henry James Thomas
  • Patent number: 10378606
    Abstract: A selectively tunable vibration absorber includes a support member having an outer surface, and a selectively tunable element mounted relative to the outer surface of the support member. The selectively tunable element is selectively adjustable to attenuate vibrations in a selected frequency range perceived by the support member in a selected direction. A mass is supported by the selectively tunable element.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 13, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wallace J. Hill, Mark A. Gehringer
  • Patent number: 10375311
    Abstract: Imaging system comprising an anti-rotation mount and an image detector. The mount may comprise a first frame member having a fixed relation to a set of mutually transverse X, Y, and Z axes, and a second frame member. The second frame member may be connected to the first frame member via a coupling assembly, such that the frame members are not permitted to rotate relative to one another. The mount also may comprise X-axis, Y-axis, and Z-axis coupling structures each formed at least partially by the coupling assembly and each permitting axial motion of the frame members relative to one another only substantially parallel to the X axis, Y axis, and Z axis, respectively. The image detector may be connected to the mount via the second frame member.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: August 6, 2019
    Assignee: FLIR Systems, Inc.
    Inventors: Stephen W. Zeise, Najat Hamri, James H. Weaver, Tylden Van Eeden, Robert D. Anderson
  • Patent number: 10365181
    Abstract: The three-dimensional standard vibrator based on leaf-spring-type decoupling device contains a base set with three single-dimensional vibrators (along X, Y and Z axes, respectively) and a three-dimensional vibration platform. The X axis vibrator is connected with the three-dimensional vibration platform through X axis decoupling device, the Y axis vibrator is connected with the three-dimensional vibration platform through Y axis decoupling device, and the Z axis vibrator is connected with the three-dimensional vibration platform through Z axis decoupling device. The properties of the three-dimensional vibrator are as follow. X axis decoupling device, Y axis decoupling device and Z axis decoupling device are all comprised of supporting-spring units. Each of the supporting-spring units contains a pair of leaf springs mounted parallel with each other and the first and second connecting components mounted on the two edges of the leaf springs.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: July 30, 2019
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Wen He, Xufei Zhang, ShuShi Jia, Jie Zhou
  • Patent number: 10274640
    Abstract: Systems and methods for attenuating vibrations in marine seismic equipment involve a vessel towing a seismic streamer having a plurality of seismic receivers. The seismic streamer is connected to the vessel by a front-end and a damper is coupled to the front-end. A vibration on the front-end is detected and a damper response to the detected vibration on the front-end is then determined. The damper is actively adjusted based on the damper response. The active adjustment dampens vibrations in an axial direction along a lead-in of the front-end and/or vibrations in a direction transverse to an axial direction of the lead-in.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: April 30, 2019
    Assignee: CGG SERVICES SAS
    Inventor: Jason Daniel David Andersen Granholt
  • Patent number: 10208832
    Abstract: A centrifugal pendulum-type vibration absorbing device that includes a support that rotates together with any one of the rotary elements of the damper; and a mass that is supported by the support so as to oscillate freely, wherein the centrifugal pendulum-type vibration absorbing device is designed to have an effective order that is greater by at least a correction amount associated with the hysteresis of the damper than an order of vibration that is generated in the driving device to be damped.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: February 19, 2019
    Assignee: AISIN AW CO., LTD.
    Inventors: Hiroki Tsuji, Akihiro Nagae, Yoichi Oi, Kazuto Maruyama, Tomoki Inagaki, Hideaki Miyakoshi
  • Patent number: 10189561
    Abstract: A resonator provided with a heavy member comprising a casing fastened a spring blade. The heavy member comprises a set of masses that is movable in translation in said casing along a longitudinal direction. A wormscrew driven by drive means is engaged in a slider nut of said set of masses. The set of masses comprises two masses that are slidable respectively in two cylindrical spaces of the casing. Each mass presents at least two presser means interposed between the mass and the casing, each presser means comprising a groove formed in a circumference of a mass, each presser means comprising at least one resilient member arranged in said groove and a split ring pressed against the casing by said at least one resilient member of the presser means.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: January 29, 2019
    Assignee: AIRBUS HELICOPTERS
    Inventors: Claude Bocoviz, Valentin Ecard, Guillaume Inquiete, Alain Eberhard, Laurine Tailland
  • Patent number: 10184795
    Abstract: Improved sensing devices are provided for determining the spatial disposition of a movable object. In one aspect, an apparatus for determining a spatial disposition of a movable object comprises: a support base configured to be carried by a movable object; one or more accelerometers coupled to the support base via a first damping element configured to damp motion of the one or more accelerometers; and one or more gyroscopes coupled to the support base via a second damping element configured to damp motion of the one or more gyroscopes, wherein an amount of motion damping provided by the first damping element is greater than an amount of motion damping provided by the second damping element.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: January 22, 2019
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Jian Yu Song, Ren Li Shi, Tao Wang
  • Patent number: 10180176
    Abstract: A turbine torsional vibration damper, in particular a simple torsional vibration damper, for a vehicle, preferably for a drivetrain of a motor vehicle, having a damper part for introducing a torque into the turbine torsional vibration damper and a damper part for extracting the torque from the torsional vibration damper, wherein a pendulum mass flange of a centrifugal pendulum device is rigidly coupled mechanically with a damper part of the turbine torsional vibration damper. A converter or a torque transmission device for a vehicle, in particular for a drivetrain of a motor vehicle, wherein the converter or torque transmission device has a turbine torsional vibration damper according to the invention.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: January 15, 2019
    Assignee: Schaffler Technologies AG & Co. KG
    Inventors: Christian Dinger, Jan Hoffmann, Christian Huegel
  • Patent number: 10174805
    Abstract: A pendulum-type torsional damping device comprises oscillating masses (6, 8, 10) mounted movably on a support (4). Each oscillating mass (6) is intercalated circumferentially between a first adjacent oscillating mass (8) and a second adjacent oscillating mass (10). Each oscillating mass (6) is mounted movably on the support (4) by a rolling contact via a single bearing element (12) associated with that oscillating mass, and a sliding contact between one of terminal edges (18) thereof and a terminal edge (20) of the second adjacent oscillating mass (10), which forms a radial retention edge for that oscillating mass (6). The device allows effective pendulum damping to be obtained with a limited number of bearing elements.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: January 8, 2019
    Assignee: Valeo Embrayages
    Inventor: Roel Verhoog
  • Patent number: 10163433
    Abstract: An automotive active brake noise damping system to actively damp braking noise perceivable in the passenger compartment of a motor vehicle comprising a braking system comprising a plurality of braking assemblies associated with wheels of the motor vehicle. The automotive active brake noise damping system comprises a sensory system to sense quantities that allow braking noise perceived in the passenger compartment of the motor vehicle and generated by the braking assemblies during braking to be estimated, an audio system to diffuse sounds in the passenger compartment of the motor vehicle, and an electronic control unit connected to the sensory system and the audio system, and programmed to control the audio system based on the quantities sensed by the sensor system to actively damp the braking noise perceived in the passenger compartment of the motor vehicle.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: December 25, 2018
    Assignee: FCA Italy S.p.A.
    Inventors: Renato Badino, Stefano Luca
  • Patent number: 10018241
    Abstract: Provided is a vibration isolator (10) including a partition member (15) configured to partition a liquid chamber of a first attachment member (11) into a main liquid chamber (16a) disposed at one side in an axial direction and a subsidiary liquid chamber (16b) disposed at the other side in the axial direction, and a movable plate (18) displaced according to a pressure difference between the main liquid chamber (16a) and the subsidiary liquid chamber (16b), wherein an accommodating chamber (29) configured to accommodate the movable plate (18), a first communication hole (23) configured to bring the accommodating chamber (29) in communication with the main liquid chamber (16a), and a second communication hole (24) configured to bring the accommodating chamber (29) in communication with the subsidiary liquid chamber (16b) are formed in the partition member (15).
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: July 10, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Tatsuya Tsutsumi
  • Patent number: 10006514
    Abstract: The present disclosure relates to a frequency tuned damper having a vibration body (19) and at least one elastic element (11, 13, 15, 17) which connects the vibration body to a surface (21), the vibrations of which is to be dampened. The elastic element has a wide portion (29) and a narrow portion (31) disposed at different locations on an axis (39) which is substantially parallel with the normal of the surface. The wider portion has a cavity (41), and the wide and narrow portions are inter-connected by a transition portion (43). The part of the narrow portion that is closest to the transition portion fits inside the cavity, as seen in the direction of the axis, such that the narrow portion can be pushed at least partly into the cavity, thereby flexing the transition portion.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: June 26, 2018
    Assignee: VIBRACOUSTIC FORSHEDA AB
    Inventor: Bengt-Göran Gustavsson
  • Patent number: 9992890
    Abstract: A system or structure subject to external mechanical dynamic loading excitations propagated within the system or structure comprising a fluid filled structure and a fluid volume operable to facilitate fluid flow about at least part of the structure. Excitations within the structure can be propagated throughout. The system can further comprise a tuned mass damper (TMD) located within the fluid volume. The TMD can leverage the viscous properties of the fluid to attenuate the excitations within the structure. The TMD can comprise a mass and a spring operably connected to the mass. The TMD can further comprise a fluid resistance facilitating fluid flow about the mass and the spring for damping and a secondary tuning feature operably connected to at least one of the mass and the spring and the supporting fluid-filled structure.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: June 5, 2018
    Assignee: Raytheon Company
    Inventors: Florian P. Lukowski, Jr., Paul M. Shaheen, Charles Chu
  • Patent number: 9958028
    Abstract: A device for damping torsion oscillations comprises support rotatably movable about an axis. A pendular body comprises first and second axially spaced pendular masses movable relative to the support. The first mass disposed axially on a first side of the support and the second mass disposed axially on a second side of the support. A member connects the first and second pendular masses. Each mass includes an opening in which the connecting member is force-fitted. The openings have radially exterior and interior edges. The connecting member has radially interior and exterior edges. The radially exterior edge extends between two angular ends of the connecting member, each defined by a lug. Each mass exerts a force on each lug, and via a one nose piece projecting radially and carried by the radially interior edge of the opening or the radially interior edge of the connecting member.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: May 1, 2018
    Assignee: Valeo Embrayages
    Inventors: Roel Verhoog, Franck Cailleret
  • Patent number: 9895961
    Abstract: An airflow outlet comprising at least a first plurality of airflow direction elements, a second plurality of airflow direction elements, and an actuation system is provided. Each of the respective first airflow direction elements and second airflow direction elements include a vane shaft and at least one vane element disposed along the vane shaft and integrally coupled thereto. The actuation system is configured to control the position of the vane elements of each of the airflow direction elements. The actuation system includes a drive element engaged with the driven element, which is further engaged with the vane shafts of each of the airflow direction elements. A rotation of the drive element causes a proportional rotation of the vane elements of the each of the airflow direction elements to an operating position, which defines an airflow direction through the airflow outlet.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventor: Gerard Alan Brinas
  • Patent number: 9895800
    Abstract: A robot includes a base, a first arm which is rotatable around a first rotating axis with respect to the base, a second arm which is rotatable around a second rotating axis orthogonal to the first rotating axis, a third arm which is rotatable around a third rotating axis parallel to the second rotating axis, a first angular velocity sensor provided in the first arm, and a second angular velocity sensor provided in the third arm. The angle between a detection axis of the first angular velocity sensor and the first rotating axis is a predetermined first angle. The angle between a detection axis of the second angular velocity sensor and the second rotating axis is a predetermined second angle.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: February 20, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Asada, Akio Niu, Hiroaki Hosomi
  • Patent number: 9889506
    Abstract: Provided is a vibration-proof structure capable of more effectively reducing rotational vibration of a rotating body during a cutting operation. According to a configuration of the structure, inside a main body of the rotating body, there are provided a plurality of shaft members arranged along a longitudinal direction of a rotation axis of the rotating body and at least one layer of multiple tubular members fitted over the shaft members and arranged coaxially with the rotation axis along the longitudinal direction of this rotation axis; and a boundary position between the shaft members adjacent each other in the longitudinal direction and a boundary position between the tubular members adjacent each other in the longitudinal direction are set as different positions along the longitudinal direction.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: February 13, 2018
    Assignee: Daishowa Seiki Kabushiki Kaisha
    Inventors: Joji Nakatani, Yasuyuki Ishida
  • Patent number: 9873198
    Abstract: According to some embodiments of the present invention, a cooperatively-controlled robot includes a robotic actuator assembly comprising a tool holder and a force sensor. The cooperatively-controlled robot further includes a control system adapted to communicate with the robotic actuator assembly and the force sensor, and an actuator in communication with the control system and mechanically coupled to a tool. The force sensor is configured to detect a vibrational force applied on the tool and send a signal to the control system based on the vibrational force. The control system is configured to receive the signal and determine a force to apply to the tool to damp the vibrational force. The control system then signals to the actuator to apply the determined force, and the actuator applies the determined force to actively damp a vibration of the tool.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: January 23, 2018
    Assignee: The Johns Hopkins University
    Inventors: Russell H. Taylor, Kevin C. Olds, Guillaume Arvin
  • Patent number: 9829877
    Abstract: A servo control apparatus according to the present invention includes a speed command generator; a torque command generator; a speed detector; a speed control loop; a speed control loop gain setting unit; at least one filter for filtering a specific band of a torque command value; a sinusoidal disturbance input unit for performing a sinusoidal sweep on the speed control loop; a frequency characteristics calculator for estimating the gain and phase of speed control loop input and output signals; a resonance frequency detector; a filter adjuster for adjusting the filter in accordance with a resonance frequency; a gain adjuster; a sequence controller for online and automatically performing the detection of the resonance frequency, the adjustment of the speed control loop gain, and the adjustment of the filter; and an adjustment state display unit. The adjustment state display unit displays a stage and progress in the adjustment by the sequence controller.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: November 28, 2017
    Assignee: FANUC CORPORATION
    Inventor: Kazunori Iijima
  • Patent number: 9797262
    Abstract: A vane cluster includes a split damped outer shroud and an inner shroud spaced from the split damped outer shroud with a multiple of stator vane airfoils that extend between the split damped outer shroud and the inner shroud.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: October 24, 2017
    Assignee: United Technologies Corporation
    Inventors: Carl S. Richardson, Mark J. Rogers, Jonathan J. Earl, Kenneth E. Carman, Richard K. Hayford
  • Patent number: 9777474
    Abstract: A vibration control wall structure, which is introducible into a wall part of a building, includes a wall frame, a vibration control wall body, and a vibration control damper for absorbing a vibration acting on a building. The vibration control wall body includes a plurality of face materials which are fixed to a frame material via a fastening member and are connected to each other in a width direction. A gap part is formed such that both side end portions of the vibration control wall body are separated from the wall frame so as to absorb displacement in an in-plane direction. The vibration acting on the building is damped by the vibration control damper having a long hole in a longitudinal width direction of the vibration control wall body. The vibration control wall body can relatively slide in the long hole in the longitudinal width direction.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: October 3, 2017
    Assignee: IDEAL BRAIN CO., LTD.
    Inventor: Takanori Sato
  • Patent number: 9695901
    Abstract: A gas spring system includes: a gas spring assembly including at least one gas damping passage; a reservoir member connected to the gas spring assembly, the gas spring assembly being in fluid communication with the reservoir member by way of the at least one gas damping passage; and a guide member coupled with the gas spring assembly, the guide member at least partially enclosing the reservoir member and being configured for sliding axially relative to the reservoir member.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 4, 2017
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: Joshua R. Leonard
  • Patent number: 9695904
    Abstract: A centrifugal pendulum device includes a pendulum mass carrier, which is rotatable about a rotation axis, and at least one pendulum mass, which is supported on the pendulum mass carrier for movement along a track between end stops which are spaced from one another in circumferential direction in relation to the rotation axis. A spring device urges the pendulum mass in one of the end stops, when the rotation speed of the pendulum mass carrier drops below a limit rotation speed.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: July 4, 2017
    Assignee: AUDI AG
    Inventors: Herbert Meyer, Sebastian Schulze
  • Patent number: 9689452
    Abstract: A method for assembling a pendulum-type damping device (1) includes the steps of force-fitting a first end of the spacer (17) into an opening (26) of a first part (3a) of a pendulum mass (3). A support (2) is positioned so that the spacer (17) spans a corresponding opening of the support (2). A roller is positioned between the spacer (17) and the edge of the opening of the support (2). The second end (17b) of the spacer (17) is force fit into an opening (26) of a second part (3b) of the mass (3).
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: June 27, 2017
    Assignee: Valeo Embrayages
    Inventors: Marc Ray, Roel Verhoog, Franck Cailleret, Michael Hennebelle
  • Patent number: 9665108
    Abstract: The present invention provides a vibration reduction apparatus which reduces a vibration of a target object supported on a base, comprising a first object supported by a first elastic member on the base, a second object supported by a second elastic member on the first object, a detection unit including a sensor having a first electrode provided on the first object and a second electrode provided on the second object, and a processor configured to obtain a distance between the first electrode and the second electrode using the sensor, a first driving unit configured to drive the first object, a first control unit configured to control the distance between the first electrode and the second electrode constant based on a detection result, wherein the second electrode and the processor are electrically connected to each other via the second elastic member.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 30, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Ryo Nawata
  • Patent number: 9606547
    Abstract: An apparatus for controlling an actuator in a camera module is provided. The apparatus includes a position controller for producing a control voltage to move a lens of the camera module, a hall sensor for detecting an amount of change in magnetic lines of force generated by a magnet as a hall voltage, a voice coil motor for moving the lens according to a current applied thereto, and a current controller for using a voltage applied to the voice coil motor to detect an interference voltage created by the current applied to the voice coil motor, for generating an interference-eliminated hall voltage by removing the interference voltage from the hall voltage, and for controlling the current applied to the voice coil motor based on the control voltage and the interference-eliminated hall voltage.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: March 28, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong-Gu Lee
  • Patent number: 9588524
    Abstract: Provided is a vibration control device, which enables the vibrations of a vibrating body, such as a rotary machine, to automatically be suppressed, without installing a vibration detection sensor on the vibration control device or vibrating body, and without controlling the rotational speed or phase of the vibration control device. The vibration control device (1), which is installed on a vibrating body (2) and controls the vibrations of the vibrating body (2), comprises a rotating shaft (11), a mass body (12) that is fixed to the rotating shaft (11), and an activation apparatus (13) that adds the power of a rotational motion, which is centered on the rotating shaft (11), to the mass body (12).
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: March 7, 2017
    Assignees: NAGASAKI UNIVERSITY, MITSUI ENGINEERING & SHIPBUILDING CO., LTD.
    Inventors: Yutaka Yoshitake, Shuhei Kajiwara
  • Patent number: 9551397
    Abstract: A damping system (10) having a rotation axis (X) and comprising at least: one first flyweight (14) and one second flyweight (14) able to oscillate with respect to a support member (12), and at least one device (20) for guiding the first and second flyweights (14) with respect to the support member (12), having at least one bearing element (22) able to interact with a pair of opposite tracks, respectively a first guidance track (24) and a second guidance track (26) that is carried by the support member (12), wherein the first guidance track (24) is carried by said connecting means (16).
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: January 24, 2017
    Assignee: Valeo Embrayages
    Inventor: Roel Verhoog