A measuring device that includes a housing and at least one vibration damper attached to the housing.

An energy absorption device for a vehicle steering column comprising a metal band and an adjustable deformation unit through which the metal band extends. The deformation unit is a rotatable hollow roller having a first contact surface inside the hollow roller that is separated from an outer contact surface by an outlet slot. The metal band passes through an inlet slot into the interior of the roller, and then through the outlet slot leaves the roller, in a manner that that said metal band is entirely deformed along an S-shaped curve.

A shock absorber includes a hollow cylinder body extending in an up-down direction, a rod pipe located on an axis of the cylinder body, provided to be relatively movable in an axial direction of the cylinder body with respect to the cylinder body, and provided in a form of receiving a force in the axial direction, a rod-shaped support body extending inside the rod pipe with an upper end fixed, a stroke sensor including a coil and a conductor provided to be able to detect relative displacement of the rod pipe with respect to the support body, and a hollow intermediate member provided between the inner peripheral surface of the rod pipe and the support body to allow movement in the axial direction.

This disclosure relates to an active inerter damper configured to be disposed on or in a building structure. The active inerter damper includes a base, a lead screw, a rotational mass block, a driving device and a controller. The lead screw is movably disposed above the base along an axial direction. The rotational mass block is engaged with the lead screw so as to be rotatable with respect to the base. The driving device is connected to the lead screw. The controller is electrically connected to the driving device, and the controller is configured to activate the driving device to move the lead screw along the axial direction so as to rotate the rotational mass block via the lead screw.

A vibration isolation device for optimally decoupling shear forces that are orthogonal to the principal direction of isolation from microvibrations. A pivoting load support element is free to pivot about a pivot point in response to shear forces, with optimal isolation from coupling to the principal direction of vibration isolation. A friction free bearing for small motion is provided to respond to the forces perpendicular to the principal direction of vibration isolation. An internal load support plate associated with the pivoting element is supported by equalizing springs and is damped by an active actuator driven according to a sensor on the internal load support plate. Adjustment points, such as screws, adjust the pivoting element with respect to the fixed pivot point.

An active control anti-yaw damper (100) is provided. When a piston (2) of the active control anti-yaw damper (100) reciprocates inside a hydraulic cylinder (1), an interior of the hydraulic cylinder (1) is divided into two cylinder blocks (PA, PB) which communicate with an oil reservoir through two main oil lines respectively to form a primary loop between the hydraulic cylinder (1) and the oil reservoir; a reversing valve (PV3) is installed between the two main oil lines and the oil reservoir and is configured to change a flow direction of the primary loop when the active control anti-yaw damper (100) is in an active mode and adjust a displacement of the piston (2) within the hydraulic cylinder (1).

A voltage converter of a high voltage driver generates a high voltage applied to an electrorheological damper. The voltage converter and the electrorheological damper are electrically connected together through a connecting portion. The connecting portion comprises an electrode pin that connects the voltage converter and an electrode cylinder of the electrorheological damper; a ground pin that connects an external cylinder of the electrorheological damper and ground, and a ground detection pin disposed separately from the ground pin and connected to the ground through the external cylinder and the ground pin. When the ground detection pin and the ground are disconnected, the voltage converter discontinues the voltage generation with or without a command (control signal) of a sub-controller.

A shock absorber for damping movement of a wheel suspension system of a vehicle can include a damper tube, a piston, a damping adjustment assembly, and a protective cover. The damper tube can contain a fluid. The piston can be located in the damper tube so as to accommodate relative movement between the damper tube and the piston. The damping adjustment assembly can be connected to the damper tube, and can include a reservoir, a solenoid valve, and a wire harness connection. The solenoid valve can be in fluid communication with each of the reservoir and the damper tube and configured to selectively open and close fluid communication between the reservoir and the damper tube. The wire harness connection can be in electrical communication with the solenoid valve. The protective cover can contain the wire harness connection.

A method for reshaping an electric drive signal of a real-time damper in a sprung mass system includes detecting a periodic frequency and magnitude of a target periodic vibration of a sprung mass. The periodic vibration has velocity and elasticity components that are 90 degrees out-of-phase. An electric drive signal to the real-time damper is reshaped by a controller depending on polarity of the velocity component to thereby generate a composite drive signal. The damper is energized using the composite drive signal to modify a damper force. Reshaping the electric drive signal includes injecting a force and/or an intermittent drive suppression component onto the electric drive signal based on the frequency and magnitude. The sprung mass system may have a frame and body, motion and wheel speed sensors, the real-time dampers, road wheels, and a controller programmed to perform the method.

A method and device for preventing impact vibration of a lift system include: acquiring a load weight in a lift container; obtaining preset basic parameters of a lift system; according to the load weight in the lift container and the basic parameters of the lift system, determining a fundamental wave vibration period of a lifting rope when the lift system starts; according to the fundamental wave vibration period and preset calculation parameters of the lift system, determining time-varying simulation parameters of an acceleration of the lift system during a lifting process; according to determined time-varying simulation parameters of the acceleration, lifting the lift container.