Abstract: A labyrinth seal including: an annular seal body having an inner wall and an outer wall spaced apart from one another by an annulus; a nested dampener system disposed along the outer wall, the nested dampener system including: a first dampening element; and a second dampening element, wherein opposite axial ends of the nested dampener system are defined by the first dampening element, and wherein the second dampening element is disposed outside of at least a portion of the first dampening element in a radial direction.

Abstract: A shock absorber for a washing machine and a washing machine having the same are disclosed. The shock absorber includes: a shock absorber sleeve, and the shock absorber sleeve defines an accommodation cavity therein; a shock absorber rod, movably connected to the shock absorber sleeve; an elastic member provided on the shock absorber rod and/or the shock absorber sleeve; a first damping member fitted over the shock absorber rod and mounted on the shock absorber sleeve; and a second damping member mounted on the shock absorber rod and accommodated in the accommodation cavity. The first damping member and the second damping member generate damping when the shock absorber rod moves relative to the shock absorber sleeve. The shock absorber for the washing machine has a simple structure and favorable shock absorbing effects, and occupies little space.

Abstract: A kit is described that comprises a device adapted to dampen the vibrations transmitted by the rotor to the fuselage; the device comprises two first elements movable along a first axis; two second elements rotatable about the first axis; a first inerter with a first female screw, a first screw, and first rollers rotatable about respective second axes and around the first axis with respect to the first female screw and first screw; a second inerter with a second female screw, a second screw operatively connected to the second female screw; and a plurality of second rollers rotatable about second axes and around the first axis with respect to the second female screw and second screw; the first and second female screws defining the first threaded elements, and the first and second screws defining the second threaded elements; or the first and second screws defining the first threaded elements and the first and second female screws defining the second threaded elements.

Abstract: Described is a turbine arrangement of a gas turbine engine, the turbine comprising: a rotor comprising a disc which incorporates a plurality of circumferentially spaced turbine blades, each blade having an aerofoil extending for a platform and a root portion securing the blade to the disc, a lock plate located at an axial end of the root portion of the blade, the lock plate comprising: a plate body having an inward facing surface which is located adjacent the blade root and an outward facing surface, radially inner and outer edge portions, and first and second circumferential edges; a head located at the radially outer edge portion of the plate body; a foot portion located at the radially inner portion of the plate body; a projection extending from the outwardly facing surface away from the turbine blade root in use, the projection being located adjacent to the foot portion, wherein the foot portion and head portion are located within slots provided at least partially by the disc and turbine blade respectivel

Abstract: A machine tool with active damping is provided, having a ram with longitudinal walls wherein vibrations are produced during machining according to at least a main bending direction (D1, D2) of the ram, a head that is arranged at one free end of the ram, actuation means for actuating the head which are arranged on one of the longitudinal walls of the ram, and damping means configured to generate at least a force (F1, F2) in the main bending direction (D1, D2) of the ram, wherein the damping means are arranged in a partial cross section of the longitudinal wall of the ram wherein the actuation means are arranged, the partial cross section being located between the actuation means and the free end of the ram on which the head is arranged.

Abstract: A seal support structure is provided for a circumferential seal. In one embodiment, the seal support structure includes an engine support structure, a seal support, and a shoulder joining the engine support and seal support. The shoulder offsets the engine support from the seal support, and the shoulder and the seal support structure are configured to dampen vibration for the circumferential seal. The seal support structure may employ one or more dampening elements or materials to interoperate with a seal support structure to dampen vibration to a seal system.

Abstract: A containment structure comprising an annular structure configured to provide close tolerance to a rotation structure. The containment structure includes a first abradable structure, a second abradable structure, and a shroud that is defined in part by the first abradable structure and in part by the second abradable structure. An annular surface of the shroud is defined by the first abradable structure and by the second abradable structure. The first abradable structure is harder than the second abradable structure.

Abstract: A rotating labyrinth seal especially useful for effecting sealing between two plenums in aircraft gas turbine engines comprising a base and a plurality of radially-directed seal teeth rings extending circumferentially around the outer peripheral surface of the base. The seal separated from a load transmitting component via abutting surfaces which prevent cracks from migrating into the load transmitting component from the seal.

Abstract: A habitation module with a gravity chamber that provides an artificial gravity environment. In one embodiment, the gravity chamber is annular and includes an outer cylindrical wall, an inner cylindrical structure, and opposing side walls that connect the outer cylindrical wall and the inner cylindrical structure. The gravity chamber attaches to a cylindrical core member of the habitation module with support bearings. The support bearing includes an inner race attached to the cylindrical core member, and an outer race attached to the gravity chamber. A drive mechanism drives the outer race of the support bearing to rotate the gravity chamber about an axis to simulate a gravitational force within the gravity chamber.

Abstract: A laundry treatment apparatus in which as an outer tub vibrates, a piston and a cylinder are relatively moved. When as the outer tub vibrates, the piston and the cylinder move relative to each other and a frictional member provides a frictional force between itself and the other one to attenuate vertical vibration of the outer tub. In particular, the piston and the cylinder are prevented from being separated from each other in the laundry treatment apparatus.

Abstract: Seismic base isolation and energy dissipation device using a plurality of multi-walled swing plate's that are placed on many central walls that are attached to a base support structure. This arrangement creates a strong load bearing multi-walled swing beam that moves in true pendulum fashion. This system is placed between the structural load and its foundation. This seismic wave base isolation system has the purpose of absorbing seismic wave displacement energy in all directions. This unique design can scale up for very large and heavy loads or scale down to protect sensitive cargo and equipment from destructive motion. The multi-walled swing plates inside the multi-walled swing beam will provide support and absorption of motion by moving as a pendulum and therefore redirecting and dissipating seismic energy. This invention is particularly suited to reduce the initial shock of horizontal ground displacement.

Abstract: A laundry treatment apparatus including a casing, an outer tub provided in the casing, an inner tub rotatably disposed in the outer tub and a pivot pivotably supported with respect to the casing. A supporting rod connected with the pivot and the outer tub to hang the outer tub in the casing. A moving member is movably provided along the supporting rod. A first connecting member connected with the moving member. A second connecting member whose position varies with respect to the first connecting member. A frictional member provided at any one of the first connecting member and the second connecting member. The moving member includes a pivot combining part provided to be combinable with the pivot to prevent the supporting rod from escaping through the other end of the moving member while the supporting rod is not connected with the outer tub.

Abstract: A vibration damper device comprising: a rigid bracket having a substantially flat side shoulder including a substantially rectilinear longitudinal groove or slit thereon, and which is anchorable in a rigid manner on the body of the lintel or of the pillar, next to the covering beam or the plug panel, to arrange said side shoulder facing the lateral side of the covering beam or the surface of the plug panel, with the longitudinal groove or slit locally substantially parallel to the longitudinal axis of the covering beam or to the longitudinal axis of the plug panel; a movable slider slidably engages the longitudinal groove or slit, and is anchorable in a rigid manner to the body of the covering beam or to the body of the plug panel; and a deformable connecting member with elastoplastic behavior, which is connectable to the movable slider in a rigid manner to the bracket.

Abstract: A method and device are provided for indicating wear of at least one brake pad in a disc brake having an electric motor actuator. The method adds up wear adjustment travel paths of the electric motor actuator and/or of an adjustment motor, and indicates the sum of the wear adjustment paths so obtained as the wear of the brake pad or as a residual brake pad service life.

Abstract: A friction damping device (100) for damping relative movements between a first structural element and a second structural element of a construction, comprising: —a first damping system (110) for damping a first relative movement component and having a first friction surface (111) and a second friction surface (112), —a second damping system (120) for damping a second relative movement component and having a third friction element (121) and a fourth friction element (122). The first friction surface and the second friction surface of the first and the second damping system form a frictional engagement. The first damping system (110) and the second damping system (120) are placed in series.

Abstract: A friction damper includes: a base body; a support secured to an elongated member of the base body and having a through hole; a rod which extends in such a manner as to pass through the through hole of the support and is movable in an axial direction with respect to the support; a friction member which has a hollow cylindrical portion interposed between the support and a main body portion of the rod in the through hole of the support, and which is fixed immovably with respect to the relative movement of the rod in the axial direction with respect to the base body; and a tightening means provided for the support so as to tighten the hollow cylindrical portion of the friction member onto the main body portion of the rod.

Abstract: Washing machine appliances and damper assemblies are provided. A damper assembly includes a cylinder defining a central longitudinal axis, the cylinder including a sidewall that defines an interior, the sidewall defining a central bore and a pocket concentrically surrounding the central bore, the sidewall including an upper shoulder and a lower shoulder that each connect the pocket and the central bore. The damper assembly further includes a piston partially disposed in the central bore and movable along the longitudinal axis relative to the cylinder. The damper assembly further includes a tube assembly concentrically surrounding the piston and at least partially disposed in the pocket, the tube assembly having a length that is less than a length of the pocket. The piston is further movable along the longitudinal axis relative to the tube assembly.

Abstract: A mountable attachment for positioning a sensor in an environment, like a combustion chamber of a gas turbine is disclosed. The mountable attachment includes a mounting member having a hollow elongated configuration for incorporating the sensor therewithin. The attachment further includes at least one primary resilient member disposed within the mounting member in a coordinating manner with the sensor for applying an axially outward force on the mounting member to prevent thereto from loosening from a counterpart , and providing a mounting torque for mounting the sensor at a target position within the environment . The attachment may also include additional resilient member, such as a secondary resilient member, which may in combination with the primary resilient members attain a resulting mounting force to prevent the mounting member from loosening from the counterpart.

Abstract: An engine control system includes a cylinder control module and a pump control module. The cylinder control module selectively deactivates cylinders of an engine. In response to a determination that at least one of the cylinders is deactivated, the pump control module: selectively increases a target displacement for an oil pump that is driven by a balance shaft of the engine; and selectively adjusts displacement of the oil pump based on the target displacement.

Abstract: Damper, in particular for washing machines with a spin cycle, with a housing having a central longitudinal axis and at least partially encompassing a housing interior by housing walls, a plunger displaceable in the housing along the central longitudinal axis, guided out of the housing and having at least one friction lining recess, fastening elements, arranged on open ends of the housing and the plunger, and at least one friction lining, arranged in the at least one friction lining recess and in frictional contact with opposite housing walls.

Abstract: A vibration damping mechanism allows increase of an absorption amount of vibration energy, with less possibilities of increase in the manufacture cost of a vibration damping weight and of reduction in the strength of a shaft section. Within a cylindrical hollow portion formed inside the shaft section, there are accommodated a plurality of weight members divided from each other along the circumferential direction about the axis of the hollow portion. An urging member is provided for urging the weight members toward the axis such that dividing faces of adjacent weight members are brought into surface contact with each other.

Abstract: An aircraft vehicular assembly is provided that includes a nonelastomeric outer tubular member having an inner axial center bore with a tubular cylindrical frictional interface contiguous smooth inner surface segment, and a nonelastomeric inner member having an outer bonding surface segment. The nonelastomeric inner member is rotationally received in the outer member inner axial center bore with the nonelastomeric inner strut member rotatable within said outer member. An elastomer encompasses the nonelastomeric inner strut member outer bonding surface segment. The elastomer has an inner bonding surface segment and an outer grooved elastomer surface, the inner bonding surface segment is bonded to the nonelastomeric inner member outer bonding surface segment.

Abstract: By providing a tube of deformable material which can be located within a hollow cavity of a blade it is possible to provide an element which through friction engagement can absorb vibration energy and therefore damp vibration in a hollow blade. The tube incorporates a number of cuts and/or grooves in an appropriate pattern in order to define a deformation profile once the tube is expanded in location. The tube is secured in position internally upon an expandable element which is typically an inflatable device. Once in position the tube is retained in its expanded deformable profile and the engagement between the tube and the hollow cavity wall surface results in energy absorption through vibration episodes. It is possible to provide a tube formed from a shape memory alloy which will expand in location to engage the hollow cavity wall surfaces for energy absorption during vibration episodes.

Abstract: Disclosed is a high-performance shear friction damper provided in a building construction and attenuating a vibration which is applied to the building construction due to external loads such as an earthquake or strong wind. The high-performance shear friction damper includes first and second support bodies supported to a building construction or damping rods, two prop plates fixed to the second support body and extending to surround both side surfaces of the first support body, friction plates mounted between the first support body and the prop plates, and fastening units each including a tension bolt penetrating the first support body, the friction plates and the prop plates, and a nut fastened to an end of the tension bolt, wherein the first support body has slots extending in a horizontal direction, the tension bolts extend while penetrating the slots to allow the first support body to be slidably movable in the horizontal direction with respect to the friction plates.

Abstract: Disclosed is a high-performance shear friction damper provided in a building construction and attenuating a vibration which is applied to the building construction due to external loads such as an earthquake or strong wind. The high-performance shear friction damper includes first and second support bodies supported to a building construction or damping rods, two prop plates fixed to the second support body and extending to surround both side surfaces of the first support body, friction plates mounted between the first support body and the prop plates, and fastening units each including a tension bolt penetrating the first support body, the friction plates and the prop plates, and a nut fastened to an end of the tension bolt, wherein the first support body has slots extending in a horizontal direction, the tension bolts extend while penetrating the slots to allow the first support body to be slidably movable in the horizontal direction with respect to the friction plates.

Abstract: A friction damper is proposed, in particular for drum-type washing machines with a spinning cycle, with a movable piston rod which is arranged in a housing (1) parallel to the longitudinal axis of the housing and is guided out of the housing (1), wherein the housing (1) comprises at least one plastic element (3) and at least one metal element (2) which is both producible cost-effectively and at the same time also withstands relatively high stresses. This is achieved according to the invention in that at least the metal element (2) has at least one metal with a heat conductivity of at least 150 watts per meter and Kelvin (150 W/(m*K))).

Abstract: Vibration damper includes a tubular body to which an external part, which acts as a stop, is fastened. A component such as a steering knuckle, which is supported against the stop, is also fastened to the tubular body. When a normal load on the component is exceeded, a deformation area allows the component to shift on the tubular body.

Abstract: Provided is a damper configured so that a compact pedal unit can be obtained using the damper and so that the damper can be easily retrofitted to a pedal unit. A damper (1) comprises elements such as: a pair of cams (slide cam (4) and stationary cam (5)) which rotate relative to each other about the axis (O1) to cause the sloped cam surfaces (4132, 5211) thereof to make sliding contact with each other; a coiled spring (3) which presses the sloped cam surface (4132) of the slide cam (4) against the sloped cam surface (5211) of the stationary cam (5); a case (2); and a resin roller (8) which is fitted in a rotatable manner on the shaft (7A). The rotational motion of the slide cam (4) about the axis (O1) is restrained by the case (2), and as a result, the slide cam (4) rotates about the axis (O1) relative to the stationary cam (5) in association with the rotation of the case (2) about O1.

Abstract: A structural member includes a split beam within a box structure. The split beam may be a segmented beam that includes multiple segments for each of its parts. Movement of the split beam parts within the box structure, as the structural member flexes, dissipates energy and adds to the damping of the structural member.

Abstract: The invention relates to a friction damper (1) and method related to the preparation of a friction damper, particularly for drum washing machines having a spin gear, with a housing and with a moveable tappet (4) which is arranged in the housing (2), parallel to the housing longitudinal axis (2a), and is led out of the housing (2) and which is provided at its end located in the housing with a moveably guided friction lining (8). The invention is distinguished in that the friction lining (8) or a body carrying the friction lining (8) is provided with a receptacle (22) for receiving an expandable body (23).

Abstract: Damper, in particular for washing machines with a spin cycle, with a housing having a central longitudinal axis and at least partially encompassing a housing interior by housing walls, a plunger displaceable in the housing along the central longitudinal axis, guided out of the housing and having at least one friction lining recess, fastening elements, arranged on open ends of the housing and the plunger, and at least one friction lining, arranged in the at least one friction lining recess and in frictional contact with opposite housing walls.

Abstract: Damper, in particular for washing machines with a spin cycle, with a housing having a central longitudinal axis and at least partially encompassing a housing interior by housing walls, a plunger displaceable in the housing along the central longitudinal axis, guided out of the housing and having at least one friction lining recess, fastening elements, arranged on open ends of the housing and the plunger, and at least one friction lining, arranged in the at least one friction lining recess and in frictional contact with opposite housing walls.

Abstract: Various embodiments of a spiral shaped element and embedded wavy materials are disclosed for use in a shock mitigating material to dissipate the energy associated with the impact of an object. The shock mitigating material can be used in helmets, bumpers, bullet proof vests, military armor, and other applications. One embodiment, among others, is a shock mitigating material having a plurality of spiral shaped elements, each having a circular cross section, and each being tapered from a large outside end to a small inside end but also having an embedded wavy material that can induce shear waves to mitigate the shock pressure and impulse.

Abstract: The invention refers to swing dampers, in particular to the swing dampers having disc brakes. A Swing damper (1) for damping work elements, comprising an upper part (2) having at least two lugs (4) and a lower part (3) having at least two lugs (5), where brake discs (6a, 6b; 7a, 7b) are arranged between the lugs 4 of the upper part 2 and the lugs 5 of the lower part 3. The Swing damper (1) characterized in that a tensioning element (10) and associated control means (30) are provided in the cut-out “a” formed between the two lugs (4) of the upper part (2), providing a pressing of the brake discs (6a, 6b; 7a, 7b) and therefore damping a swing.

Abstract: A bearing (1) comprising a block (10) of flexible material, having two end surfaces (11, 12); and a first fixture element (20) and a second fixture element (30) connected at each of the end surfaces (11, 12); wherein at least one rotational damping device (40) is arranged between the first and second fixture elements (20, 30), the bearing thus providing high dampening between structural parts of a structure, such as buildings, bridges, elevated highways, and mechanical systems (machinery).

Abstract: A friction damper includes: a base body; a support secured to an elongated member of the base body and having a through hole; a rod which extends in such a manner as to pass through the through hole of the support and is movable in an axial direction with respect to the support; a friction member which has a hollow cylindrical portion interposed between the support and a main body portion of the rod in the through hole of the support, and which is fixed immovably with respect to the relative movement of the rod in the axial direction with respect to the base body; and a tightening means provided for the support so as to tighten the hollow cylindrical portion of the friction member onto the main body portion of the rod.

Abstract: A vibration damping device for a vibration damping target has a linear member that includes a plurality of wires, which are held so that each of the plurality of wires is relatively displaced in a state that the wires are in contact with one another, and a cover member that covers a peripheries of the plurality of the wires, wherein the plurality of the wires and part of the cover member are fixed to the vibration damping target, and a region of the linear member that flexes through plastic deformation of the linear member is located near each point where the linear member is fixed to the vibration damping target.

Abstract: A friction damper includes: a base body; a support secured to an elongated member of the base body and having a through hole; a rod which extends in such a manner as to pass through the through hole of the support and is movable in an axial direction with respect to the support; a friction member which has a hollow cylindrical portion interposed between the support and a main body portion of the rod in the through hole of the support, and which is fixed immovably with respect to the relative movement of the rod in the axial direction with respect to the base body; and a tightening device provided for the support so as to tighten the hollow cylindrical portion of the friction member onto the main body portion of the rod.

Abstract: A damper unit which brakes the speed of movement of a moving body by using a piston damper provided with a cylinder and a piston rod which is connected to a piston inside the cylinder, is provided. The damper unit includes a case wherein the above-mentioned piston damper is disposed; a transmitting member slidably provided inside the case and transmitting an external force accompanied by the movement of the above-mentioned moving body; a link member whose one end side is attached to the above-mentioned case so as to become the rotational center, and also whose the other end side is pivotally supported by the above-mentioned transmitting member; and a connecting member connected between both ends of the link member and being in contact with or connected to either the piston rod or the cylinder.

Abstract: The invention relates to a controlled-friction device comprising first and second elements mounted to move relative to each other in a sliding direction, wherein the device of the invention includes first and second friction members arranged symmetrically between the two elements in order to rub selectively against the second element, each of the friction members being urged towards a wedging position by a presser member, the first friction member being arranged, in a first direction of relative movement between the two elements along the travel direction, to tend to prevent relative movement between the two elements, and in a second direction to exert on the two elements an opposing friction force that depends on a stress applied against the first wedge member by the presser member; while the second friction member is arranged in the second direction to tend to prevent relative movement of the two elements, and in the first direction to exert on the two elements an opposing friction force that depends on a s

Abstract: A device for selectively controlling and varying a frictional force level at an interface between two bodies, includes a first contact body having at least one surface, a second contact body having at least one surface in physical communication with the first contact body, and an active material in operative communication with a selected one or both of the first contact body and the second contact body, wherein the active material is configured to undergo a change in a property upon receipt of an activation signal wherein the change in a property is effective to change the frictional force level at the interface between the at least one surface of the first contact body and the at least one surface of the second contact body.

Abstract: A vibration reducing interface which uses interconnected layers of three or more concentrically arranged isolators to reduce vibrations in tools, vehicles, machines, weapons and anything else which uses pumps, compressors, engines, motors, spinning elements, out of balance loads or inconsistent, variable loading. The vibration reducing interface provides for tiering arranged isolators for reducing varying degrees and directions of vibration. The vibration reducing interface reduces vibration and its related negative affects including injury, damage and reduced control in relation to use of tools, vehicles, machines, weapons and other equipment.

Abstract: An aircraft vehicular assembly is provided that includes a nonelastomeric outer tubular member having an inner axial center bore with a tubular cylindrical frictional interface contiguous smooth inner surface segment, and a nonelastomeric inner member having an outer bonding surface segment. The nonelastomeric inner member is rotationally received in the outer member inner axial center bore with the nonelastomeric inner strut member rotatable within said outer member. The assembly includes an elastomer encompassing the nonelastomeric inner strut member outer bonding surface segment. The elastomer has an inner bonding surface segment and an outer grooved elastomer surface, the inner bonding surface segment is bonded to the nonelastomeric inner member outer bonding surface segment.

Abstract: A vibration damping mechanism allows increase of an absorption amount of vibration energy, with less possibilities of increase in the manufacture cost of a vibration damping weight and of reduction in the strength of a shaft section. Within a cylindrical hollow portion formed inside the shaft section, there are accommodated a plurality of weight members divided from each other along the circumferential direction about the axis of the hollow portion. An urging member is provided for urging the weight members toward the axis such that dividing faces of adjacent weight members are brought into surface contact with each other.

Abstract: A composite cable and method provides for control of the cable, and particularly its vibration modes, in response to a wide range of resonant and non-resonant energy input. The cable comprises a non-Newtonian fluid (NNF) in a cavity of a flexible tube. The NNF is characterized by viscosity that varies with shear stress. A load applies shear stress to the NNF changing its viscosity to dampen motion of the cable. The cable may comprise inner and outer tubes that are separated by a NNF. The inner tube may be filled with the same or different NNF, a Newtonian fluid or void. A magnetic field magnetic field may be applied to further control the viscosity of the NNF. The magnetic field may be controlled in response to a sensed condition of the cable indicative of shear stress in the NNF to provide either positive or negative feedback.

Abstract: Disclosed is a damper that is easy to mount and capable of attenuating to a sufficient degree a vibration generated by an electronic component; also disclosed are an electronic component and an electronic apparatus that are provided with such a damper. A mounting insertion portion is provided with a hard portion maintaining the configuration of the mounting insertion portion.

Abstract: One embodiment includes a method including providing a first portion of a product, the first portion of the product having a body and a flange extending therefrom; and casting a material around at least a portion of the flange to enclose the same and to provide a second portion of the product and wherein the at least the portion of the flange is constructed and arranged to provide frictional damping of the product.

Abstract: An aircraft front nose landing gear having both elastomeric and nonelastomeric elements is provided along with a method of making the same. The aircraft front nose landing gear includes the ability to reduce/inhibit oscillating shimmy rotation vibrations. The method further provides for making a landing gear with a shimmy damper for further reducing oscillating rotations.

Abstract: A rotary belt drive tensioner including a damping mechanism decoupled from the torque output and pulley alignment of the tensioner such that the damping force and the torque output may be independently variable. The damping mechanism includes a shoe plate and at least one shoe set includes a damping shoe and a shoe spring. The shoe plate is operatively attached to one of the arm and the base, and the shoe spring exerts a radial load on the damping shoe in sliding engagement with the other of the arm and the base to generate a flexible damping force. In one embodiment, the rotary belt drive tensioner includes a damping mechanism containing three damping shoe sets positioned generally equidistant from each other on the shoe plate.

Abstract: In a damper for spin-drying washing machines, it is provided, with a view to amplitude-dependent damping behaviour being obtained accompanied with manufacture at a low cost, that a frictional damping unit, which is disposed inside a casing, comprises an at least sectionally bare and elastic frictional damping lining for producing a given frictional damping effect, and at least one stop element which is stationary in relation to the casing and turned towards the at least one frictional damping lining, with the at least one stop element being designed for direct cooperation with the at least one frictional damping lining.