Abstract: The present disclosure inhibits liquid metal embrittlement (LME) cracking and improves corrosion resistance in a welded joint obtained by spot welding a first steel sheet and a second steel sheet. In the welded joint of the present disclosure, a first plating layer is provided on a surface of the first steel sheet facing the second steel sheet, no plating layer is present on or a second plating layer is provided on a surface of the second steel sheet facing the first steel sheet, and a boundary plating layer is provided between the first steel sheet and the second steel sheet in a range of 0.5 mm from an end part of the corona bond toward an outside of the spot welded part. A higher tensile strength of a tensile strength of the first steel sheet and a tensile strength of the second steel sheet is 780 MPa or more, an area ratio of a MgZn2 phase at the cross-section of the boundary plating layer is 10% or more, and the first plating layer and the second plating layer satisfy a predetermined Relation I.

Abstract: Panels are shown which are provided with a mechanical locking system allowing perpendicular connection with a snap action. A set of panels including a first and a second panel, an edge of the second panel is insertable into a groove of the first panel, when the panels are arranged essential perpendicular to each other, to obtain a mechanical connection between the first and the second panel, when the second panel is displaced essentially perpendicularly to the first panel.

Abstract: A hanger (10) comprises a main part (12) having a holding formation (36) for holding an elongate article (15) in a position in which the elongate article (15) extends through the holding formation (36). The main part (12) has a support portion (38) for supporting an elongate item (11). The main part (12) defines a gap (22) to allow the elongate item (1) to be received in the support portion (38). The hanger (10) further includes a closure member (24) to close the gap (22).

Abstract: A blind rivet, for connecting workpieces, comprising a hollow, deformable rivet body with a bearing collar and a sleeve attached thereto, a rivet mandrel in the sleeve and extending through the bearing collar, having a tool holder head, and a sealing ring. The sealing ring is arranged between the bearing collar and the tool holder head and is made of a curable and not fully cured sealing material. During contraction of the blind rivet, the sealing ring is pressed axially towards the bearing collar by a tool that can be connected to the tool holder head or by a section of the rivet mandrel. The sealing ring is designed to flow radially and axially into gaps and spaces on the bearing collar and between the bearing collar and the workpieces while the sealing ring is compressed, and to adhere there.

Abstract: The invention provides a self-drilling screw structure and a manufacturing method thereof, wherein the manufacturing method includes: providing screw body, forming drill tail screw rod section, forming concave neck portion, forming drill tail cutting edge and forming thread. The self-drilling screw structure including a screw head portion and a screw rod portion, the screw rod portion is sequentially provided with a threaded screw rod section, a drill tail screw rod section and a drill bit screw rod section, the drill tail screw rod section has a rod diameter of drill tail, a plurality of drill tail cutting edges and a plurality of drill tail chip discharge grooves, the drill bit screw rod section is provided with a concave neck portion, and the drill bit screw rod section is protruded to form a plurality of drill bit cutting edges and the plurality of drill bit chip discharge grooves.

Abstract: An installing system (100) according to the present disclosure includes a U-bolt (10) which includes a pair of shaft parts (11) aligned in a first direction and extending in a second direction orthogonal to the first direction, and a bridge part (12) that connects one ends of each of the pair of shaft parts (11); and a measurer (20), in which a strain gauge (14) which outputs a signal corresponding to a strain of the shaft parts (11) in the second direction is embedded in each of the pair of shaft parts (11), in line symmetry with respect to a straight line (OX) including an apex (0) of the U-shape and extending in the second direction, and the measurer (20) measures the strain of each of the pair of shaft parts (11) in the second direction, from an output signal of the strain gauge (14) embedded in each of the pair of shaft parts (11).

Abstract: A U-bolt (10) according to the present disclosure includes a pair of shaft parts (11) aligned in a first direction and extending in a second direction orthogonal to the first direction; a bridge part (12) which connects one ends of each of the pair of shaft parts (11); and a first pair of strain gauges (14) which are stuck to at least one shaft part (11) of the pair of shaft parts (11) to face each other with the shaft part (11) sandwiched in the first direction, and which output a signal corresponding to bending of the shaft part (11) in the second direction.

Abstract: A U-bolt (10) according to the present disclosure is a U-bolt (10) including a pair of shaft parts (11) arranged in a first direction and extending in a second direction orthogonal to the first direction, and a bridge part (12) connecting one end of each of the pair of shaft parts (11) and in which a strain detection pattern is attached to at least a part of at least one shaft part (11) of the pair of shaft parts (11).

Abstract: A cage nut fastener for installation without the aid of tools includes a nut and a spring cage comprised of a back wall with a wall aperture therethrough, first and second hooking arms disposed at opposite sides of the back wall, and one or more cage arms. At least one of the first and second hooking arms includes a compressible lever. Each of the first and second hooking arms terminates with an outwardly-oriented hooked portion at a front of the nut. Each of the one or more cage arms engages at least a side face and a front face of the nut. The nut is retained at a caged location by at least the one or more cage arms, is prevented from rotation at the caged location, and includes a nut aperture therethrough in general alignment with the wall aperture of the back wall.

Abstract: A channel having a base portion, an open central region, and an integral pair of sidewalls. The integral pair of sidewalls having an upper portion of each sidewall that includes an inward-facing downturned internal flange and an outward-facing upturned external flange.

Abstract: A coupling system is described that allows users to avoid having to manipulate two tools at the same time while reaching around to both sides of the coupled components. A lock plate can rest above one or more holes passing through (and for joining together) the components. A blade pin with a partially hollow cylinder can be inserted through holes in the lock plate and at least partially through the holes. A blade bolt can be inserted into the holes and the cylinder from the other side. The blade bolt can comprise an o-ring that engages with an inner diameter of a portion of the cylinder and holds the parts together with an interference fit. A portion of the bolt can extend through the top of the holes, and a washer and nut can be attached to or about a threaded portion of the bolt. During each state of installation a user will not have to reach to both sides of the system while manipulating multiple tools.

Abstract: A hook assembly, including a hook and a connecting member. The connecting member is configured to mount the hook on a mounting base. The connecting member is sliding mounting member, hanging member, or fixing member. The hook includes a hook body, a plate, an upper hook portion, and a lower hook portion. the hook body is fixedly provided on an outer side of the plate. The upper hook portion is arranged on an upper end of the plate and is configured to bend inward. The lower hook portion is arranged at a lower end of the plate and is configured to bend inward. Both the upper hook portion and the lower hook portion are slidably connected to a track on a surface of a sliding mounting member and are fittedly inserted therein.

Abstract: A propeller shaft assembly for an aircraft engine includes a shaft having: an annular wall extending circumferentially about a shaft axis and circumscribing a hollowed interior defining a cavity in a front end portion of the shaft, the annular wall having an outer surface and an inner surface facing radially inwardly to the cavity; and a front flange projecting radially outwardly from the annular wall. The front flange includes a hub side surface defining an interface plane and adapted to abut with a propeller hub. The shaft also includes a reinforcement web defining an end wall of the cavity, the reinforcement web extending radially inwardly from the inner surface of the annular wall. At least part of the reinforcement web is radially aligned with the front flange. At least one perforation extends axially through the reinforcement web.

Abstract: A propeller shaft assembly for an aircraft engine includes a shaft having a bore extending through the shaft at a front end thereof, the front end of the shaft having an outer surface facing radially outwardly from the shaft and an inner surface spaced apart from the outer surface and facing radially inwardly to the bore. A front flange extends radially outwardly on the outer surface, the front flange defining a hub side surface adapted to abut with a propeller hub. A reinforcement rib extends radially inwardly towards a central axis of the shaft. At least part of the reinforcement rib is radially aligned with the front flange.

Abstract: A bush may include an inner tube, an outer tube, and an intermediate tube portion made from a compliant material and arranged radially between the inner tube and the outer tube. A radially outer surface of the inner tube and a radially inner surface of the outer tube may each have at least one protruding rib running in a circumferential direction of the bush. The intermediate tube portion may be shaped complementary to the outer surface of the inner tube and the inner surface of the outer tube, so as to fill a space therebetween. The protruding ribs may be configured to cause externally applied radial or axial forces to propagate as substantially normal stress in the intermediate tube portion.

Abstract: A fluid film bearing for a rotor hub of a wind turbine includes a first part and a second part rotatably coupled to each other about a longitudinal axis. The first part includes an annular first sliding surface extending in the circumferential direction of the fluid film bearing along the first part. In addition, the second part includes a support structure and a first group of bearing pads coupled to the support structure and having a bearing pad sliding surface configured to slide on the first sliding surface. In addition, the fluid film bearing further includes a seal arranged between the first part and the second part.

Abstract: A folding implement such as a knife having a handle and a blade or tool rotatably connected to the handle by a fixed bearing surface. The handle includes a first scale or side and a second scale or side, wherein a first fixed bearing surface is connected to the first scale and a second fixed bearing surface is connected to the second scale, with the blade or tool positioned between the first scale and second scale and in contact with the bearing surfaces. The bearing surfaces contact an adjacent side surface of the tang of the blade or tool and sweep there across when being moved from a closed position to an open position or vice-versa. The bearing surfaces are fixed in the scales and do not rotate thereby providing a consistently reliable mechanism for reducing operating friction.

Abstract: The invention provides various parts that reduce the wear and tear on components that perform significant work within an adjustable anti-vibration rubber assembly for the cardan shaft. The assembly includes radial bases (4) and tightening plates (5) that adjust the functionality of a metal frame (3) of an assembly. This adjustment reduces excessive stress on the flexible rubber bearing support (1) of the adjustable anti-vibration rubber assembly for the cardan shaft, ensuring the proper alignment and operation of the bearing (2). This is achieved without deforming the flexible rubber bearing support (1) during installation.

Abstract: An elastic bearing has an inner body, an outer body and an elastic layer. The outer body surrounds the inner body such that the outer body and the inner body have a common longitudinal axis, which forms the bearing longitudinal axis as a first spatial axis of a 3D coordinate system. The elastic layer is positioned between the outer body and the inner body. In the direction of a second spatial axis, a distance between the outer body and the inner body is minimal, and free from the elastic layer. In the direction of a third spatial axis, the distance between the outer body and the inner body is always the same, and the elastic layer is arranged therein in order to fill that spacing gap.

Abstract: A linear motion guide apparatus that is easily assembled is provided. The linear motion guide apparatus includes: two guide rails that are movable relative to each other in a longitudinal direction thereof via at least one rolling element; and a cage configured to hold the rolling element and hold a gear engaging with a meshing portion provided to at least one of the two guide rails. The cage includes: a first split body in which a rolling element holding portion that holds the rolling element and a gear holding portion that holds the gear are integrally formed; and a second split body in which a rolling element holding portion that holds the rolling element and a gear holding portion that holds the gear are integrally formed. The first split body and the second split body are joined to each other.

Abstract: A linear motion system comprising a first linear track that defines a first linear path, a second linear track that defines a second linear path, and a carriage connected to the first linear track and the second linear track. The system further includes an alignment mechanism configured to allow rotation of the carriage relative to the first linear track. The alignment mechanism includes an upper surface rigidly attached to the carriage, a lower surface mounted on the first linear track, a rotation interface between the upper surface and the lower surface to permit rotation of the carriage relative to the first linear track, and a linear movement interface between the upper surface and the lower surface to permit translational movement of the upper surface relative to the lower surface to permit translational movement of the carriage relative to the first linear track.

Abstract: A device (24) for controlling a magnetic bearing (22) includes an axis with two electromagnets (26, 28) diametrically opposed. The device (24) includes two power converters per axis of the magnetic bearing. Each power converter supplies one different electromagnet. The device includes eight power devices (40, 42, 44, 46, 48, 50, 52, 54) arranged in a first line (88) and a second line (90). Each of the first and second lines includes four power devices. A first set of four power devices (40, 42, 44, 46) are connected together to form a first power converter. A second set of four power devices (48, 50, 52, 54) are connected together to form a second power converter. Each of the first and second lines (88, 90) includes two power devices (40, 42, 44, 46) of the first set and two power devices (48, 50, 52, 54) of the second set.

Abstract: Disclosed is a bearing component (1) that is comprised of a plurality of radially and/or axially extending layers (2, 4, 6), wherein the plurality of layers (2, 4, 6) are applied one atop the other using a cold-spray method.

Abstract: A wheel bearing unit includes an outer ring, a first inner ring with a first axial end face, first rolling elements arranged between the outer ring and the first inner ring, a second inner ring with a second axial end face, facing the first axial end face, second rolling elements arranged between the outer ring and the second inner ring, and a sealing device for sealing an interface of the first inner ring and the second inner ring. The sealing device includes an annular retaining element and a sealing element provided on the annular retaining element. The sealing element is a sealing ring that includes first and second contact points contacting the annular retaining element, a third contact point contacting the first inner ring, and a fourth contact point contacting the second inner ring. At least one of the contact points has a flat face.

Abstract: A bearing assembly includes an inner ring having an inner raceway and an outer ring disposed about the inner ring and having an outer raceway. A plurality of rolling elements, preferably balls, are disposed between the inner ring and the outer ring such that each one of the rolling elements rolls simultaneously upon the inner raceway and the outer raceway. The inner ring and/or the outer ring is formed of a lightweight composite material, the composite material including a mixture of a base polymer, reinforcing fibers and a lubricant, preferably polyoxymethylene, glass fibers and silicone. Further, each one of the inner raceway and the outer raceway is formed such that each ball contacts two separate points on the inner raceway and contacts two separate points on the outer raceway such that the bearing assembly is configured to support loading in both directions along a central axis.

Abstract: Disclosed are a rolling bearing with fully-filled plastic oil and a manufacturing method therefor. A clearance between the existing cage and an outer ring raceway or outer ring flange or/and between the cage and an inner ring raceway or/and inner ring flange is so small that a plastic oil fluid cannot be filled into a free space inside the bearing fully, which not only limits the advantages of plastic oil-lubricated bearings, but also has other negative effects. In the invention, without affecting the performance of the bearing, unilateral radial clearances between the cage and an outer ring and between the cage and an inner ring are increased to over 0.

Abstract: A bearing device includes a bearing provided with an inner ring and an outer ring that rotate concentrically relative to one another. A vibration sensor measures vibrations of the bearing. The bearing device includes a first determining means (10) for determining values of at least a first statistical parameter and a second statistical parameter (P1, P2, P3, P4, P5, P6), a modelling means (11) for modelling the values of the first and statistical parameters with normal distributions, a second determining means (12) for determining a detection threshold (Sd) from the normal distributions during the training period, a third determining means (13) for determining a score (Sc) during normal operation of the machine (1) from the values of the two statistical parameters and the normal distributions, and a comparing means (14) for determining the failure of the bearing (4) from the detection threshold (Sd) and the score (Sc).

Abstract: A dog clutch arrangement for a motor vehicle having a clutch body. The clutch body has first teeth in a first toothing and an axially movable sliding sleeve arrangement with second teeth in a second toothing. The sliding sleeve arrangement has a shift ring and a sleeve with the second toothing. The shift ring and the sleeve at least partially overlap in axial direction and are arranged to be axially displaceable relative to one another. The shift ring and the sleeve enclose an intermediate space, a pneumatic damping which damps the movement of the sleeve and the shift ring relative to one another being formed with the intermediate space.

Abstract: A detection device comprises a roller rotating around an axis. A member is fixed to the roller. The member is designed to come into contact with a clamp. The member is mounted movable with respect to the axis to come into contact the clamp or not. Rotation of the roller generates a centrifugal force designed to move the member towards the clamp. When the speed of rotation of the roller reaches a threshold value, the member come into contact with the clamp to block the roller. The member has a flyweight and a ratchet separated by a plane perpendicular to the first axis of rotation of the roller. The plane is offset with respect to the contact surface between the member and the clamp. The flyweight is located farther from the axis than the contact area with the clamp in a radial direction.

Abstract: A clamping device includes a roller rotating around an axis. A member is fixed to the roller. The member is designed to contact a clamp. The member is mounted movable with respect to the axis to contact the clamp or not. Rotation of the roller generates a centrifugal force designed to move the member towards the clamp. When the speed of rotation of the roller reaches a threshold value, the member contacts the clamp to block the roller. The roller is provided with a stop mounted fixedly to the roller and has a fourth contact area. In the second member position, a third contact area of the member is pressing on the fourth contact area. The third contact area is arranged opposite the second contact area.

Abstract: A brake disc configured to be connected to a vehicle axle and to be squeezed between brake pads, comprising a central disc body (30) having a first and a second side, wherein the second side faces in the opposite direction compared to the first side; a first and a second disc plate (36, 38), each disc plate having a wear surface for producing friction when a brake pad is pressed against the wear surface; wherein the disc plates are releasably secured to said first side and said second side, respectively, of said central disc body, so as to enable the first and second disc plates to be replaced by other disc plates; and an enveloping sleeve (50) releasably secured to an outer circumference of the central disc body so as to apply a radially inwardly directed pressure to the disc plates.

Abstract: A brake disc configured to be connected to a vehicle axle and to be squeezed between brake pads, comprising a central disc body (30) having a first and a second side (32, 34), wherein the second side faces in the opposite direction compared to the first side; a first and a second disc plate (36, 38), each disc plate having a wear surface for producing friction when a brake pad is pressed against the wear surface. The disc plates are releasably secured to said first side and second sides, respectively, so as to enable the first and second disc plates to be replaced by other disc plates. A connecting member (64) prevents rotation of the disc plates relative to the central disc body, the connecting member extending from the first disc plate, through a passage (58) in the central disc body, to the second disc plate. Also presented is a vehicle comprising such a brake disc.

Abstract: A braking device has a portion having a braking surface adapted to come into contact with an opposite facing braking surface to apply a braking action, the braking surface being circumferentially free from obstacles to allow relative rotation between the braking surface and opposite facing braking surface when mutually in contact, and defining, in any point with respect to a revolution axis if the braking surface is fixed, or a rotation axis if the braking surface is rotative, an axial direction, a radial direction, a circumferential direction, and a tangential direction. A support connecting portion is radially outside the braking surface, either radially away from or outside the braking surface or either radially close to or inside the braking surface. A cooling portion, included circumferentially and laterally to the support connecting portion, has a plurality of axially through-openings adapted to increase a heat exchange surface and unadapted to create connecting surfaces.

Abstract: A brake lining system for a disc brake of a rail vehicle is shown and described, with a pad holder and with at least one brake pad connected to the pad holder, preferably with two brake pads, and with a sensor device with a sensor unit having at least one wear sensor for determining a state of wear of the brake pad.

Abstract: Disclosed is a system for measuring the wear condition due to friction in a clutch system, which is widely used in the automotive industry.

Abstract: A fastening element and a decoupling assembly, the fastening element for add-on parts connected to a body structure of a motor vehicle, a method for producing the de-coupling assembly and assembling it.

Abstract: An additively manufactured lattice structure includes (a) a first three-dimensional lattice including a repeating interconnected array of a first lattice unit cell, (b) a second three-dimensional lattice including a repeating interconnected array of a second lattice unit cell, wherein the second lattice unit cell is different from the first lattice unit cell, and (c) a first transition segment interconnecting the first three-dimensional lattice and the second three-dimensional lattice. The first transition segment includes (i) a first three-dimensional transitional lattice including a repeating array of the first lattice unit cell and (ii) interleaved with and interconnected to the first three-dimensional transitional lattice, a second three-dimensional transitional lattice including a repeating array of the second lattice unit cell.

Abstract: An anti-vibration device is provided to enable improvement in a static spring constant of a bush in an axially perpendicular direction while suppressing an increase in a volume of the bush. A lower seat is formed to a position downward relative to a through hole on an axial end surface of a bush. The lower seat axially outwardly inclines downward to the outer circumferential surface of the bush. This lower seat enables suppression of an increase in a volume of the bush and improvement of a static spring constant of the bush relative to downward compressive deformation.

Abstract: Impact protection for people and goods involved in athletics, transportation, industrial, and military activities comprises a hybrid crush zone shock absorber apparatus, systems, and methods of using the same. More specifically, the present invention reduces forces transmitted to a person or item exposed to impact. Primary applications are in protective articles such as helmets and body padding, surfaces which people or goods may impact, and shock isolation packaging. In addition to reduction in transmitted impact forces, our invention provides clear, irreversible visual indication of the state of readiness of the protective gear to which it is fitted.

Abstract: A friction damper includes a housing having a longitudinal axis, a tappet that is displaceable along the longitudinal axis, a friction unit for generating a direction-dependent friction force on the tappet, wherein the friction unit includes at least one friction lining that rests frictionally on the tappet and a friction lining carrier on which the at least one friction lining is held, wherein the friction lining carrier is arranged to be displaced relative to the tappet between an extraction position and an insertion position, as well as a switching unit for variably setting the friction force, wherein the switching unit includes a switchable actuator, a locking element and a force transmission unit which is mechanically coupled to the actuator and to the locking element, wherein the force transmission unit comprises a threaded spindle.

Abstract: Disclosed herein are shock absorbers and shock body assemblies, that include a shock body that is formed of a single part. The shock body includes a cylinder cavity and reservoir cavity that share a single separating wall and are closed on top by a single integral cap portion. Multiple fluid flow paths extend along an exterior the cylinder cavity and have top and bottom ends fluidly coupled with cylinder cavity. The shock body assembly includes multiple check valves and adjustable valves, integrated into the flow paths, that govern hydraulic flow along the flow paths to affect the damping function of the shock absorber. The shock body is formed via a material additive manufacturing process such that the shock is formed of a single material via a single continuous process.

Abstract: Bicycle suspension components are described herein. An example damper for a bicycle suspension component includes a damper body defining a chamber and a damper member disposed in the chamber. The damper member includes a piston having a first compression port and a bypass compression port. The damper member includes a first valve to control fluid flow through the first compression port and a second valve to control fluid flow through the bypass compression port. During a first portion of travel of the damper member during a compression stroke, the second valve is to open to enable fluid flow through the bypass compression port from a first chamber to a second chamber, and during a second portion of travel of the damper member during the compression stroke, the first valve is to open to enable fluid flow through the first compression port from the first chamber to the second chamber.

Abstract: A damper assembly includes an inner tube and an outer tube enclosing respective first and second chambers and defining respective first and second side openings. The assembly includes a housing supported by the outer tube and having an open bottom with a lip extending radially inward. The assembly includes a unitary connector engaged with the first side opening and axially extending away from the inner tube through the second side opening and the open bottom. The unitary connector is radially spaced from the outer tube at the second side opening and from the housing above the inner surface. The unitary connector abuts an inner surface of the lip of the housing and defines passages open to the first chamber and to the second chamber. The unitary connector includes a valve seat surrounding one of passages.

Abstract: Provided is a bumper cap to be attached to a shock absorber main body, and includes a cover part having an opening at one end, having a bottom part and a through hole penetrating the bottom part at another end, and configured to cover the shock absorber main body, and a plurality of protruding parts protruding from the bottom part of the cover part toward the opening side, and in which a gap is formed between the adjacent protruding parts, in which a suppression part configured to suppress a rotation of a fluid, which has flowed into a space between the inside of the cover part and the shock absorber main body from an outside of the cover part through the through hole, in the cover part is further provided.

Abstract: One aspect of the present invention is configured in such a manner that a main valve (a valve member) is in abutment with only a ridge portion (a second protrusion portion) on the inner peripheral side of a seat portion (a first seat portion) in a state of being mounted on a piston. This configuration can reduce the radial contact width between the main valve and the seat portion, and contribute to preventing or reducing variations in the valve-opening point and the damping force by managing the radial dimension of the ridge portion on the inner peripheral side of the seat portion to allow the contact diameter between the main valve and the seat portion to be kept constant.

Abstract: A damper includes a piston arranged in sliding engagement inside a pressure tube. The piston divides the pressure tube into a first working chamber and a second working chamber. A hydraulic compression stop assembly is positioned within the second working chamber and includes a plunger arranged in sliding engagement with a sleeve. The plunger includes a bumper cavity having a side wall. The bumper cavity extends a cavity depth from an end face of the plunger. The bumper cavity is in receipt of a compliant bumper. The bumper includes a bumper height greater than the cavity depth such that a portion of the bumper protrudes from the bumper cavity. The protruding bumper portion limits a maximum amount the bumper may be compressed before the sidewall is loaded by one of the piston and a piston rod.

Abstract: A magnetorheological fluid contains: a dispersion medium; and magnetic metal particles dispersed in the dispersion medium and having a coercive force of 398 A/m or less, which is equivalent to 5 Oe or less. A shear yield stress ?A measured at a shear rate of 0.01/s after a magnetic field of 0.5 T is continuously applied for 480 seconds and the magnetic field is removed is less than 2.0 times a shear yield stress ?B measured at a shear rate of 0.01/s before the magnetic field is applied.

Abstract: A mechanism for mounting in ground, foundation or structure, to provide road, port, railway or similar passive safety for protection of the respective vehicles or structures, having at least one rigid element arranged as a side of a triangle whose basal side rests on the ground, with its first end at the apex of the triangle, its midpoint pivoted to an intermediate element, and with its second end pivoted with respect to at least one friction element; a friction dissipation member; at least one elastic element arranged with its axis in the direction of the degree of freedom; the at least one friction element and at least one rigid element are attached by a coupling element allowing sliding of each friction element perpendicular to the impact load when it compresses the elastic element.

Abstract: An anti-vibration device is secured to a vibration source and a vibration transmission portion to inhibit transmission of vibration, and includes a first elastically deformed portion, a second elastically deformed portion and a third elastically deformed portion. The first elastically deformed portion is a plate having a thickness in a first thickness direction and vibrates in the first thickness direction to configure a path for the vibration to be transmitted from the vibration source to the vibration transmission portion. The second elastically deformed portion is a plate having a thickness in a second thickness direction intersecting the first thickness direction and vibrates in the second thickness direction to configure the path. The third elastically deformed portion is a plate having a thickness in a third thickness direction intersecting the first thickness direction and the second thickness direction and vibrates in the third thickness direction to configure the path.

Abstract: An apparatus for rotation rate damping of a suspended platform, the apparatus including a plurality of vertically-extended partially-filled fluid reservoirs, each of the reservoirs being open at a top and offset from a center of gravity of the suspended platform, the reservoirs being connected by tubing permitting fluid to flow between reservoirs in response to gravitational accelerations; wherein motion of the fluid in the tubing creates damping of the rotational motion of the platform.