Abstract: A bearing provides a vibration-insulating mount on a first component with a hole through which a central longitudinal axis extends. The bearing includes a first bearing part with a first fixing structure that can be arranged on one side of the first component, and a second bearing part with a second fixing structure that can be arranged on the other side of the first component. In embodiments, the first fixing structure comprises first pins that can protrude into the hole, and the second fixing structure comprises second pins that can protrude into the hole. In embodiments, at least one of the pins of each fixing structure is biased or is able to be biased radially outwards with respect to the central longitudinal axis.

Abstract: A decoupling element for fastening a heat shield. The heat shield comprising a passage opening for a fastener. The decoupling element comprising: a middle part containing a sleeve, a lower part arranged adjacent to the first axial end portion of the sleeve, a first damping element arranged on the second side of the first pressure absorption element, an upper part arranged adjacent to the second axial end portion of the sleeve, and a second damping element arranged on the second side of the second pressure absorption element.

Abstract: A spacer (1) for vibration-damped fastening of a mounting part (2) to a carrier part (3), wherein the spacer has a base body (4) with a first flange region (5) and a second flange region (6) which is opposite viewed in the longitudinal direction (L) of the base body and with a passage (7) in which a fastener (8) which is connected to the carrier part, can be received at least sectionally. The base body has an at least two-part design with a first body part (9) and at least a further, second body part (10), wherein the body parts can be detachable connected to one another to create the base body and wherein, in the connected state, a gap region (11) is provided between the first and second flange region, by which the border of a fastening hole (18) configured in the mounting part can be received.

Abstract: The present disclosure concerns a spring device with a piston and a housing into which the piston can be introduced in a movement direction. A cavity is formed between the piston and the housing, in which cavity a compressible solid body spring is arranged that consists of a solid body that can be compressed by the piston. At least one surface of the piston that faces the solid body spring is conical or concave. The disclosure furthermore concerns a securing device comprising such a spring device and the use thereof, in particular for a container closing plug.

Abstract: An all plastic compression spring assembly includes a slotted tubular spring element formed from a tensile polymer material and first and second loading cones received at opposing first and second ends of the slotted tubular spring element. The loading cones are axially compressible toward each other within the slotted tubular spring element whereby the slotted tubular spring element radially expands in tension to create an opposing radial contraction force, and in turn, an axial extension spring force. When released, the spring element elastically returns to its normal at rest shape, returning the cones to their normal at rest positions.

Abstract: A gimbal includes a photographing device, a support assembly carrying the photographing device, a connection assembly connected to the support assembly, and a plurality of shock absorption balls mounted at the connection assembly and configured to connect the gimbal to a vehicle body of an unmanned aerial vehicle (UAV). A geometric plane where geometric centers of the plurality of shock absorption balls are located is oblique relative to a horizontal direction.

Abstract: A clamping bushing which, due to the particular eccentric geometry and composite materials used to manufacture the same, comprising elastomers (14, 15) and metal sheets (10, 11), is suitable for the reduction of principally vertically acting vibrations and structure-borne sound which can arise in machines/gearboxes and, in particular, in wind turbines.

Abstract: A variable vane assembly includes a damper positioned between a platform and a trunnion. The damper is comprised of a resilient material.

Abstract: One variation may include a product comprising a top mount for a strut having a first inner strut rod attachment component comprising a metal, a second strut attachment component having at least a portion received in the first strut rod attachment component, a resilient or elastomeric material interposed between the first inner strut rod attachment component and the second inner strut rod attachment component, the second inner strut rod attachment component being constructed and arranged to receive a strut rod. One variation may include a product comprising a top mount for a strut having an inner strut rod attachment component, a first damping material and embedded in a resilient or elastomeric material, and wherein the first damping material has a greater damping property than the resilient or elastomeric material. One variation may include a product comprising an attachment collar for a strut rod, a microcellular urethane covering at least a portion of the collar.

Abstract: An antivibration device (1) has a vehicle body-side fixing member (3) adapted to be fixed to a vehicle body. A shaft (6) extends to couple between a pair of sidewalls (11) of the vehicle body-side fixing member (3). An engine-side fixing member (2) is adapted to be fixed to an engine and is provided between the sidewalls (11) to surround around the shaft (6). An elastomer stopper (5) is provided integrally on an inner surface of the engine-side fixing member (2) to define an annular stopper surface (20) that surrounds the shaft (6) while leaving a given gap therebetween. An elastomer mount body (4) couples a base (10) of the vehicle body-side fixing member (3) and the engine-side fixing member (2) together. The antivibration device (1) adequately absorbs a vibrational load applied from the engine in various directions, while ensuring compactness.

Abstract: A dynamic damper mounted within a vehicle is capable of tuning a resonance frequency for each direction and includes a housing formed by a vertical plate connected to a bottom plate. A first rubber having elasticity is seated on the bottom plate and a mass is seated on the first rubber in a vertical direction and is spaced apart from the vertical plate. A second rubber having elasticity is mounted between the mass and the vertical plate.

Abstract: A composite vibration isolation system utilizes isolators with negative-stiffness mechanisms to produce low vertical and horizontal natural frequencies to the system by allowing both the horizontal stiffness and horizontal natural frequencies to be adjusted, for example, by turning adjustment screws.

Abstract: The invention provides a vibration filter mechanism for aircraft equipment. A weighted lever arm (5) is hinged via bearings (22, 23) associated respectively with a first structure connected to a fuselage and with a second structure connected to the equipment (12). Deformable means (7) oppose pivoting movement of the lever arm. The lever arm (5) is arranged as a one-piece fork that comprises a pair of branches (19, 20) that are interconnected by a crossbar (21) and that are hinged to the bearings (22, 23) about spaced-apart parallel pivot axes (A1, A2). The fork carries a torsion shaft (24) that extends between the branches (19, 20) at their free ends (9), the torsion shaft (24) constituting the weight weighting the lever arm (5) and the deformable means (7) of the mechanism.

Abstract: A device can have an outer frame and an actuator. The actuator can have a movable frame and a fixed frame. At least one torsional flexure and at least one hinge flexure can cooperate to provide comparatively high lateral stiffness between the outer frame and the movable frame and can cooperate to provide comparatively low rotational stiffness between the outer frame and the movable frame.

Abstract: A vibration isolation device designed to be positioned between a structure (10) and an equipment anchor plate (11), includes a lattice made of bars, with each bar including at least one axial actuator (25), the lattice being an active hexapod including six identical isolation bars (12) positioned according to a regular geometry, the six bars (12) being arranged such that the control of the tension-compression forces in each of the six bars (12) makes possible the force and torque control of six separate degrees of freedom at the interface between the structure and the equipment, so as to produce effective isolation along all the system's degrees of freedom. At least one end-fitting of each bar consists of an element (16) made of elastomeric material (called “elastomeric element”).

Abstract: An apparatus has an active suspension including an electromagnetic actuator coupled to a plant in a vehicle. A force bias eliminator is coupled to the plant for causing the actuator to experience a zero-mean load, and a vibration isolation block generates a control signal based on the response of a nominal plant to measured disturbances of the actively suspended plant. A compensation system modifies the control signal in response to a difference between the response of the nominal plant to the control signal and a measured response of the actively-suspended plant to the control signal.

Abstract: A structure for bending transversal elastic waves around a zone to isolate of a plate, has an anisotropic Young's modulus and/or a heterogeneous mass density. The wavelengths of the elastic waves to bend are large with respect to the thickness of the plate and small with respect to the other dimensions of the plate. The structure is made by defining a meshing of a peripheral zone surrounding the zone to isolate; dividing the peripheral zone into several elementary rings and several elementary angular sectors; and forming, in each mesh delimited by an elementary angular sector and an elementary ring, a structural element in a material having a Young's modulus and/or a mass density different than those of the material forming the plate, the dimensions of the meshes and of the structural elements in the plane of the plate being less than half the wavelengths of the elastic waves to bend.

Abstract: A damping device for damping flexural vibration of a shaft rotating about a first axis, the device having: a supporting body; and a member, which defines an annular opening fitted through with the shaft, and is movable, with respect to the supporting body and radially with respect to the first axis, between a first and a second position when the shaft flexes radially with respect to the first axis. The member is set to the first position, and the opening is traversed loosely by the shaft when the rotation speed of the shaft is within a first range; the member is set to the second position, and the opening cooperates with the shaft, when the rotation speed of the shaft is within a second range differing from the first range and including at least one critical speed of the shaft; and the damping device has elastic means interposed between the supporting body and the member.

Abstract: A transverse link (1) has a main body (2), which has at least one first fixing region (4) for pivotal attachment to a vehicle frame element. The first fixing region (4) has a journal (9) surrounded by a bearing bush (23). A stop region (19) is arranged proximate the first fixing region (4). The stop region is interrupted when viewed in the circumferential direction, resulting in the formation of diametrically opposite thickened portions (21, 22), which are arranged between the main body (2) and the journal (9) and are embodied in such a way that only forces acting in the lateral and vertical vehicle directions are absorbed when the main body (2) is twisted out of the neutral position thereof, about a vertical axis (Y) of a second fixing region (3).

Abstract: The invention is an energy absorbing system for safeguarding structures from disruptive forces, which may be implemented into structures or devices to provide protection from seismic motion, blasts or other disruptive forces, due to the system's displacement and damping characteristics. The system's performance can be better molded analytically to predict performance of the structure under earthquake and wind motions, for example. By utilizing cost effective materials and a simple design, the present invention provides a more efficient cost-effective system for absorbing unwanted energy, for example, a base isolation system.

Abstract: The invention relates to a strut for a motor vehicle with an axially adjustable spring plate comprising a vibration damper with a cylinder and a piston rod, a support spring which is dynamically connected to the spring plate, a ring electric motor with a rotor and a stator, a ball screw with a threaded spindle which is pivoted on the piston rod, and a threaded nut for translational motion of the spring plate, and a bearing arrangement for fixing the strut on the vehicle body, the bearing arrangement having spherical bearing surfaces which allow at least a pivoting motion of the strut to the vehicle body. The invention is characterized in that in the region of the bearing arrangement the vehicle body is dynamically connected to the strut by way of a radially-stiff and rotationally-stiff component which is axially and cardanically soft.

Abstract: Apparatus for elastically supporting an engine transmission unit to a motor vehicle body, the apparatus comprising a rigid support member attachable to the engine transmission unit, a rigid flange attachable to the motor vehicle body and defining a horizontal, longitudinal direction particularly to be aligned with the driving direction of the vehicle, and an elastomeric body via which the support member is elastically supported by the flange and which has a vertical spring member for receiving a weight force of the engine transmission unit acting essentially vertically as well as perpendicularly to the longitudinal direction and a horizontal transverse direction, wherein the support member is extending away from the flange in transverse direction and has a mounting area offset with respect to the flange in transverse direction as well as a coupling section projecting in such a way essentially vertically through an opening formed through the flange that the coupling section forms an abutment for restricting a

Abstract: A vibration isolation structure is provided with a stress reduction section that can reduce the hydrostatic stress from tensional load along a stacking direction of portions of a composite laminated member corresponding to a first end side and a second end side in a shear direction orthogonal to the stacking direction to lower than the hydrostatic stress from tensional load along the stacking direction of other portions of the composite laminated member.

Abstract: A slider 24 is supported on a holder 19 of a steering wheel 11 via a coil spring 25 so as to be movable in a direction of an axis while an air bag module 20 is supported on a slider 24 via a damper spring 26 so as to be movable in a direction perpendicular to the axis. Since the coil spring 25 does not affect vibration of the air bag module 20 in the direction perpendicular to the axis, it is possible to set a spring constant of the coil spring 25 at a value appropriate for the operation of a horn switch 37, and to set a spring constant of the damper spring 26 at a value appropriate for the operation of the dynamic damper. As a result, it is possible to effectively reduce the vibration of the steering wheel 11 in the direction perpendicular to the axis with the dynamic damper without affecting the operability of the horn switch 37.

Abstract: An annular vibration isolator for a rotating shaft supported by a bearing is provided. The annular vibration isolator comprises an outer ring extending substantially entirely around the bearing, an arc portion having a contact portion extending toward the bearing, first and second axial portions enclosing a cavity, a first flange portion forming a first channel, a second flange portion forming a second channel, and the first and second flange portions forming a chamber within the cavity and forming a radial passageway connecting the chamber to the first and second channels, and a bellows disposed in the chamber and coupled to the radial passageway, the bellows adapted to receive a fluid from the first and second channels.

Abstract: The present invention relates to a slotted joint comprising a central pin and an outer tube. In one embodiment, the slotted joint comprises a first and second elastomer arm, which are bonded to an outer surface of the central pin diametrically opposite each other and spaced apart from each other to form a first and second space. The slotted joint further comprises a first abutment positioned in the first space and a second abutment positioned in the second space. The first and second abutments include an abutment part made of a rigid material and a cylindrical sector made of an elastomer. The cylindrical sector may be bonded to an outer surface the central pin and to an inner surface of the abutment part. An outside face of the cylindrical sector is spaced apart from the inner surface of the outer tube when the joint is at rest.

Abstract: A bump stopper for a suspension system that has at least a parting line along a longitudinal direction of the bumper stopper, may include at least two convex portions coaxially connected each other in the longitudinal direction of the bump stopper and contacting each other in a compressed state, a first array including first reinforcing blocks integrally formed on the respective convex portions along the parting line, each abutting first reinforcing block having a first contact angle therebetween in the longitudinal direction of the bumper stopper, and a second array including second reinforcing blocks integrally formed on the respective convex portions, each abutting second reinforcing block having a second contact angle therebetween in the longitudinal direction of the bumper stopper, wherein the first array is disposed with a predetermined angle from the first array along a circumferential direction of the bumper stopper.

Abstract: A damping device for damping flexural vibration of a shaft rotating about a first axis, the device having: a supporting body; and a member, which defines an annular opening fitted through with the shaft, and is movable, with respect to the supporting body and radially with respect to the first axis, between a first and a second position when the shaft flexes radially with respect to the first axis. The member is set to the first position, and the opening is traversed loosely by the shaft when the rotation speed of the shaft is within a first range; the member is set to the second position, and the opening cooperates with the shaft, when the rotation speed of the shaft is within a second range differing from the first range and including at least one critical speed of the shaft; and the damping device has elastic means interposed between the supporting body and the member.

Abstract: Active cushioning mechanisms that detect imminent impact and activate a damper by driving power from an onboard power supply into an electromagnetic actuator. The electromagnetic actuator transforms the stored electric power into an electromechanical damping force. The actuators may be arranged about the exterior surface of the device, and may be selectively activated to provide protection at different points on the surface depending on the location of expected impact.

Abstract: An apparatus includes a force bias element coupled to a plant in a vehicle. The force bias element has a first bandwidth. An active suspension includes a linear electromagnetic actuator located within an interior of the force bias element. The linear electromagnetic actuator has a second bandwidth that is higher than the first bandwidth and is coupled to the plant.

Abstract: The invention relates to a device (10) for transmitting torques while damping vibrations, particularly in a steering spindle arrangement, said device comprising a spindle connection part (12) for coupling to an end segment of a steering spindle, a damping bushing arrangement (16) that can be coupled to the spindle connection part (12), and a fork part (18) that can be coupled to the bushing arrangement (16) for transmitting torque. In this device, provision is made for the bushing arrangement (16) to be disposed between the spindle connection part (12) and the fork part (18), the bushing arrangement (16) having a first damping layer (60) made of elastomeric material for damping bending loads, and said bushing arrangement (16) having a second damping layer (62) made of elastomeric material for damping torsional loads.

Abstract: A hydraulic bearing with biaxial damping with an axial and radial damping characteristics essentially independent of one another. The hydraulic bearing including a housing and an axially and radially operating elastomeric damping arrangement received therein. Several chambers are adapted to receive a hydraulic damping device and formed, with respect to the axial and radial orientation of the bearing, in pairs, with each chamber pair interconnected by at least one channel. The upper housing section is constructed as a support body including an inner core, and the outer wall of the upper housing section radially separated from the inner core, and a spring connected with the inner core and the outer wall by vulcanization. The hydraulic bearing is modular, wherein the chambers affecting the radial damping are part of a bush bearing which is inserted in the support body as a separate component and non-positively and/or positively connected thereto.

Abstract: A vibration isolation device can more effectively restrain vibration in the horizontal direction rather than in the vertical direction with a simple construction. In addition, vibration of a frequency of a machine mode caused by an internal structure of the vibration isolation device is reduced with a simple construction.

Abstract: A method for actively suspending a real plant in a vehicle includes modifying a control signal on the basis of a difference between a property of the real plant, as indicated by the response of the real plant to the control signal, and a property of a nominal plant.

Abstract: This is a mounting support that secures an electrostatic marking machine to the deck of a ship or other structure. This support provides vibration-isolating systems for shipboard mounting of these marking machines. The US Navy has imposed strict one-man, short-time requirements to mount and unmount electrostatic marking machines on a ship's deck. A key feature of the present embodiments is a double-threaded stud that lifts the machine off the floor onto the isolation mounts while securing it to the mount which is bolted to the ship's deck. The present configuration satisfies the new Navy mandate.

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.

Abstract: A vibration damper, particularly for supporting compressors, pumps, electric motors and the like, comprising a flat body from which at least two engagement tabs protrude on each of the two faces and at least two elastically deformable contact and shock-absorbing portions protrude on at least one of the faces.

Abstract: Interfaces for damping mechanical vibrations are used, for example, for damping vibrations in the automotive or aerospace industry. The interfaces have a base connection element, a load connection element and a support element, with the support element being connected to the base connection element via a pretensioning device. A first energy converter system extends between engagement points on the base connection element and engagement points on the load connection element. A second energy converter system extends between engagement points on the support element and engagement points on the load connection element.

Abstract: The present invention are directed towards a system and method for providing a way of reducing the vibrations and wear between mating components of a gas turbine combustor. The gas turbine combustor includes a flow sleeve having a plurality of liner stops and a combustion liner located radially within the flow sleeve. Spring dampers are positioned between the combustion liner and the flow sleeve to restrict the relative movement between the flow sleeve and the combustion liner and dampen vibrations at their assembly location. The spring dampers are capable of compressing to permit thermal growth between the combustion liner and flow sleeve.

Abstract: A vibration isolation assembly for an aerodynamic object comprises a viscoelastic inner layer disposed on the aerodynamic object and being configured to attenuate vibration. The vibration isolation assembly further comprises a rigid or stiff outer layer disposed on an inner layer. The vibration isolation assembly may attenuate the transmission of aerodynamically-induced vibration to components contained or mounted to the aerodynamic object.

Abstract: A vibration isolator system for attaching a payload to a supporting base is provided, the payload having a center of mass and the system consisting of at least three vibration isolating pods. Each pod has two associated, non-parallel, elastic struts. A first end of each strut is attached to the supporting base and a second end of each strut is attached to the payload at a respective mounting point, and the a projected elastic center of the system is substantially co-located with said center of mass. The vibration isoloator system is operable to substantially prevent translational vibration of the supporting base from inducing angular rotation of the payload.

Abstract: A method of using a vibration isolator comprising a first mounting plate and a second mounting plate, and at least one wire cable piece which is connected both to the first mounting plate and to the second mounting plate. The at least one wire cable piece is connected to the two mounting plates in such a way that it extends rectilinearly between the two mounting plates and has a high rigidity in the axial direction as a result of which the resonant frequency is pushed out of the main range of frequency generated by an engine block and further having a low rigidity in the direction of a plane perpendicularly with respect to the axial direction.

Abstract: Disclosed is a coupling assembly including a first coupling end operably connectable to a first shaft and a second coupling end operably connectable to a second shaft. A coupling body of a plastic material is located between and operably connected to the first coupling end and to the second coupling end. The coupling body includes at least one spring segment allowing relative motion between the first coupling end and the second coupling end along a coupling assembly axis. Also disclosed is a vehicle steering system utilizing the coupling assembly.

Abstract: A mount has an inner metal and an outer metal with an elastomeric bushing disposed between them. The elastomeric bushing includes a first pair of interconnected passages to control the damping rate during axial motion and a second, separate pair of interconnected passages to control the damping rate during motion orthogonal to the axial direction.

Abstract: Methods and systems are provided for driving one or more force coils. A system for driving force coils is provided including a PWM drive coupled to a first coil and a linear drive coupled to a second coil. The PWM drive efficiently drives the first coil to apply a first force. The linear drive drives the second coil to apply a second force that is substantially noise-free. The first force is greater than the second force.

Abstract: The invention relates to a torsional vibration damper (10) and a hydrodynamic torque converter device (1). Said device has a converter torus (18) which is configured by an impeller (12), a turbine wheel (14) and a stator (16), and a converter lockup clutch (20). The torsional vibration damper (10) has at least one first energy accumulating device (28) with one or more first energy accumulators (68) (e.g. coil spring or bow spring), at least one first wall (92) radially supporting the at least one first energy accumulator (68). The invention is characterized in that a rolling body device (98) (e.g. a rolling gear) is interposed between the at least one first wall (92) and the at least first energy accumulator (68) (e.g. coil spring or bow spring).

Abstract: The disclosure provides a system, apparatus, and method for damping vibration of an elastic member within a latch for securing a top panel to a base of an information handling system (IHS) wherein the latch includes an elastic member with a first end and a second end, the first end attached to a fixed portion of the top panel. The latch may further include a body attachable to the top panel, the body defining a cavity for receiving the elastic member, wherein the body further comprises a movable anchor for attaching the second end of the elastic member and a raised portion, wherein the raised portion is in contact with the elastic member within the cavity to damp vibration of the elastic member and an actuation tab coupled to the body to engage the body in a movable position.

Abstract: A support (10) for a motor, particularly for a motor vehicle heating, ventilation and/or air-conditioning unit blower, includes a more or less cylindrical hollow sleeve (20) intended to accept the motor, and a fixing housing (30) intended to accept the hollow sleeve (20). The support (10) also includes insulating pads (40) and longitudinal strands (60) for absorbing vibrations.

Abstract: An anti-shock device has at least two sliding members placed in at least two layers. Each sliding member is comprised of a slotted seat, an inner seat, and a rolling shaft. The slotted seat has a slot defined longitudinally in a face and has outer curved rails defined in two sidewalls. The inner seat mounted slidably in the slot has an inner curved rail defined therein, corresponding to and curving in the opposite direction of the outer curved rails. The rolling shaft is mounted rotatably through the outer curved rails and the inner curved rail. When subjected to vibration, the anti-shock device converts the horizontal forces into vertical forces. In addition, an energy dissipation member is provided in the anti-shock device that eliminates vertical vibrations.

Abstract: A device is provided for suspending a battery (20) of an aircraft, the device including at least one spring (41, 54); the device further includes an adjustment element enabling the stiffness of the spring to be adjusted.