Abstract: This document discloses a magnetic vibration dampener. The dampening device can be configured to attenuate movement of an object. The dampening device can include an electrically-conductive member, and a magnet. One of the electrically-conductive member and the magnet can be configured to be fixed to the object. The other of the electrically-conductive member and the magnet can be mounted for movement in relation to the electrically conductive member or the magnet fixed to the object. The electrically-conductive member can be positioned within a magnetic field of the magnet so that an eddy current generated within the electrically-conductive member by the magnet resists relative movement between the electrically-conductive member and the magnet.

Abstract: A tuning element that can be integrally formed with a resilient body of a bush and configured to reduce dynamic stiffness increases associated with eigenmodes of the resilient body within a predetermined operational vibration frequency range. The tuning element may resemble an upstanding wall or wing on an outer surface of the resilient body. The resilient body may comprise a plurality of radial arms having axial passageways therebetween. The tuning element may bridge the passageways. A bush configured in this way may be particular suitable for use in scenario where the operational vibration frequency range comprises high frequency, such as an engine mount for an electric vehicle.

Abstract: A shock isolator includes slots in inner and outer parts that define flexures between the parts. The slots may include inner slots and outer slots that are offset from each other around a perimeter of the inner part. The shock isolator also includes stops that provide a mechanical limit on the movement of the flexures. The stops may be posts that extend from one of the parts into holes in the other of the parts. In another embodiment that stops may be extensions from one of the parts over portions of the other of the parts. The stops help in preventing plastic bending and/or fracture of the flexures due to stress.

Abstract: A one-piece brake carrier for a vehicle disc brake is provided. The brake carrier has a frame-like disc wrap-around element which has two mutually parallel bridge struts, and two frame sections arranged parallel to a brake disc rotation axis and connecting the bridge struts. The brake carrier further has a securing flange by which the brake carrier is fixable to an axle flange. One or both of the frame sections, starting from a side of the brake carrier away from the securing flange widens toward an outer edge of the securing flange.

Abstract: The wheel chock is part of a wheel chock restraint system that also includes a base plate to prevent a parked vehicle from moving away in an unauthorized or accidental manner in a departure direction. The wheel chock includes a main body having a bottom base portion and a tire-engaging bulge. It also includes a tire deformation cavity, made within the main body on the tire-facing side. Teeth are provided underneath the bottom base portion of the wheel chock to engage at least one of the corresponding teeth provided on the base plate in a latched engagement. The wheel chock has an improved resistance to rollover and tipping when the wheel is pressed forcefully against the wheel chock.

Abstract: Disclosed is a frequency sensitive type shock absorber including a piston rod reciprocating an inside of a cylinder and having a connection passage therein; a piston valve mounted on the piston rod and having a plurality of compression and rebound flow paths penetrating up and down thereof, and partitioning the cylinder into compression and rebound chambers; and a valve assembly mounted on the piston rod to generate a damping force that changes with frequency during a rebound stroke; wherein the valve assembly comprises: a housing coupled to the piston rod and having a pilot chamber in communication with the connection passage; a main retainer coupled to the piston rod and having a main chamber formed on an upper portion thereof in communication with the connecting passage; and a pilot valve coupled to the piston rod and disposed between the housing and the main retainer to partition the pilot chamber and the main chamber.

Abstract: The invention relates to a hydropneumatic valve for a vehicle train, comprising a hydraulic module, a pneumatic module and a mechatronic module, wherein the mechatronic module allows the pneumatic module to be activated independently of the hydraulic module.

Abstract: A user accessible shock travel spacer assembly is disclosed herein. The system is used on a shock assembly having a shaft with an initial predefined stroke length. A retaining cap having a retaining cap thickness and a retaining cap opening therethrough. The retaining cap opening having a diameter that is larger than an outer diameter (OD) of a shaft of a shock assembly. At least one fastener to fasten the retaining cap with a portion of the shock assembly about the shaft, such that the retaining cap reduces a stroke length of the shaft of the shock assembly by the retaining cap thickness.

Abstract: The invention consists of uncoupling the actuation lever (6) of the device from the main body thereof, such that the same ceases to be integral and becomes pivotable by means of a rotation axis (7), such that it is connected to the head (2) by means of a transmission that reduces the force required to actuate the lever, as well as varies the range of angles in which the lever is effective, thereby making the use of the device easier, more comfortable and more accurate. The device has means for uncoupling the transmission between the lever and the head, surpassing a degree of inclination for the main body that can be dangerous, a mechanism that can be disabled by means of a pin passing through a hole (10) made in the lever (6).

Abstract: A damper device for a machine tool, the damper device comprising a tubular element having a cavity and a central axis, the tubular element comprising a first surface; a damping mass arranged within the cavity and movable radially with respect to the central axis and relative to the tubular element; at least one spring element supporting the damping mass relative to the tubular element, the damping mass and the at least one spring element being arranged to attenuate kinetic vibration energy of the damper device; at least one fixed part having a fixed interior portion inside the cavity and a second surface; and a vibration damping material provided between the first surface and the second surface, the vibration damping material being arranged to attenuate potential vibration energy of the damper device; wherein the vibration damping material is substantially evenly compressed between the first surface and the second surface.

Abstract: A negative stiffness generating mechanism and a quasi-zero stiffness vibration isolator are provided. A housing is mounted on a base, and the axial relative positions of the housing and the base can be adjusted; a negative stiffness unit comprises inner-ring magnets, outer-ring magnets and a supporting shaft, the supporting shaft axially slides on the base and passes through the housing, the inner-ring magnets fixedly sleeve the supporting shaft, and the outer-ring magnets sleeve outside the inner-ring magnets and are divided into upper and lower groups of outer-ring magnets; the upper and lower groups of outer-ring magnets can synchronously move through a negative stiffness adjusting device; and the axial relative positions of the middle planes of the outer-ring and inner-ring magnets can be adjusted by adjusting the axial relative positions of the housing and the base. The isolator comprises a negative stiffness generating mechanism and a positive stiffness unit.

Abstract: A container system including an outer shell, a deck disposed within the outer shell and configured to support cargo, and at least one vibration isolator member to support the deck within the outer shell and reduce or dampen a transfer of shock or vibration to the deck. Each vibration isolator member includes a hollow, flexible body configured to resiliently compress in response to a force. At least one fastener interface secures the flexible body to the bottom wall or to the deck. The hollow, flexible body has one or more apertures to allow fluid flow into and out of an inner cavity of the flexible body during compression or expansion.

Abstract: An insert to a mold for a leaf spring comprises a substrate and a hole that extends through the substrate, A post protrudes from the substrate such that the insert, may be coupled to the mold. Further, the post covers the hole on a first end, so the hole is not exposed. On the other end of the hole, a thin overlay that covers the hole. Thus, during a process where resin is added to the mold, no resin enters the hole. The insert, when added to a leaf spring, offers reinforcement on areas where there is high stress. Therefore, holes may be added to a leaf spring at areas of high stress without overly weakening the leaf spring.

Abstract: A drivetrain for a vehicle includes a drive motor, an axle differential, and a friction brake. The drive motor is configured to drive the axle differential. The friction brake is positioned in a transmission path between the drive motor and the axle differential, and is configured to generate a braking torque.

Abstract: A shock isolator is arranged between two automated coupler parts in a vibration testing unit. When the coupler parts are engaged and coupled during vibration testing of a component, the shock isolator is disabled, and when the coupler parts are disengaged and decoupled after vibration testing, the shock isolator is activated to absorb excess shock energy and prevent shock transfer between the coupler parts that would damage the test component. The shock isolator includes a bushing that is inserted in a lower part of the two automated coupler parts and a compressive fit rod that is press-fit into the bushing. The bushing has a chamfered volume and the compressive fit rod has a corresponding compressible volume that is displaced into the chamfered volume to disable the shock isolator. After vibration testing, the compressive fit rod is expandable to a regular shape to activate the shock isolator.

Abstract: A vibration damping device for use with a downhole tool having a tool axis may comprise a device housing mechanically coupled to the downhole tool, wherein the device housing defines a receptacle having a volume and an inner surface; an inertia element movably supported in the receptacle and having a volume, a mass, and a non-zero moment of inertia about the tool axis; wherein the inertia element volume is greater than the receptacle volume and an interstitial volume is defined between the inertia element and the receptacle, and wherein the interstitial volume is occupied by a fluid or an elastomer. The device may include a longitudinal bearing and/or a radial bearing between the inertia element and the receptacle. The device may also include a pressure compensation device in fluid communication with the receptacle and positioned within or an integral part of the device housing.

Abstract: An example assembly comprises: a brake shaft comprising gear teeth formed on a circumferential portion of the brake shaft, wherein the brake shaft is substantially constrained from moving in a longitudinal direction along a longitudinal axis of the brake shaft; and a brake gear that is rotatably coupled to a drive shaft of a motor, wherein the brake shaft is rotatable about the longitudinal axis between (i) a first position at which the gear teeth of the brake shaft are disengaged from the brake gear, thereby allowing the brake gear and the drive shaft to rotate, and (ii) a second position at which the gear teeth of the brake shaft engage the brake gear, thereby precluding the brake gear and the drive shaft from rotating due to the brake shaft being constrained from moving in the longitudinal direction.

Abstract: A flexible multi-material structure comprises a spring skeleton comprising a plurality of repeating cells, the cells filled with an infill material, wherein the spring skeleton is one of a machined spring structure and a wave spring structure. The spring skeleton may comprise one of steel and polycarbonate blends, and the infill material may consist of one or more of foamed and monolithic elastomers. The foamed and monolithic elastomers consist of one or more of silicones, polyether, and polyurethane. The Poisson ratio of the infill material is about 0.1 to 0.3. The repeating cells of the spring skeleton have a predetermined wall thickness (t), wall height (h), and revolution symmetry.

Abstract: The present disclosure provides a rotational spring dampener that has a compression limiter, a first disk, and a second disk. The first disk is disposed at a first end of the compression limiter and the second disk is disposed at a second end of the compression limiter, where the second end is opposite the first end. The rotational spring dampener also has a tensile member. The tensile member is connected to the first disk and the second disk. The tensile member is composed of a block copolymer.

Abstract: A disc spring which is used by arranging a plurality of the disk springs in an axial direction along a central axis includes an annular body plate portion that has an inner peripheral surface and an other peripheral surface which gradually extend toward one side in the axial direction from an outside toward an inside in a radial direction, and a stopper portion that protrudes from the body plate portion in a direction intersecting the inner peripheral surface and the outer peripheral surface of the body plate portion, in which in a case where an axial compression load is applied to a spring member in which a plurality of the disc springs are arranged in the axial direction, the stopper portion abuts another disk spring adjacent in the axial direction or a support member supporting an axial end portion of the spring member, the body plate portion and the stopper portion are integrally formed, and both axial end edges of the stopper portion are positioned inside both axial end edges of the body plate portion in