3 results about "Resonance damping" patented technology

A horseshoe shaping apparatus is provided. The horseshoe shaping apparatus includes a block having a plurality of cradles extending from a front end, with each cradle being able to support and shape a horseshoe upon impact from a hammer. Adjacent cradles include a shoulder forming a step therebetween. A pair of turning cams extend from the rear end of the block, providing additional positioning options for shaping the horseshoe. A cradle aperture disposed through the block facilitates secure placement of horseshoes for dimensional modification. The apparatus further includes a rebound suppression base to stabilize the block during use and reduce vibration, enhancing shaping precision. Grip recesses on the lower side of the block improve handling, while the integration of resonance-dampening materials minimizes rebound.

The present application relates to a kind of machine tool flexible ball screw system decoupling control method, first to the speed inner ring transfer function is decoupled, obtain the flexible modal item in system;Based on flexible modal item design shaping controller, the parameter of shaping controller is only determined by the anti-resonance frequency of system and anti-resonance damping ratio;Speed inner ring closed loop dynamic shaping is target second-order system, so that resonance suppression and bandwidth adjustment are realized independently by PI controller.In this way, the transfer function of position outer ring is decoupled, separates out the first order component of high-order flexible mode, and designs additional controller based on position difference feedback, the feedback gain is equal to the proportional gain size of P controller in position outer ring, and the sign is opposite, suppress the influence of the first order component of high-order flexible mode.The present application realizes the decoupling of shaping controller and P-PI controller parameter setting, simplifies parameter setting process, and improves the closed-loop bandwidth and industrial practicability of flexible ball screw feeding system.

This application relates to the field of electrified railway construction, and in particular to an anti-resonance damping structure for an AF line suspension column. The structure includes a column body, a reference plate at the top of the column body, two first support plates fixedly connected to the upper surface of the reference plate, and a second support plate rotatably connected to each first support plate. A support plate is positioned above the reference plate, and two drive frames are mounted on the lower surface of the support plate. Two first support rods are rotatably connected to both ends of each drive frame. This invention, through the arrangement of the support plate and drive frames, and the cooperative relationship between them, allows the column body to transmit vibrations to the drive frames via the reference plate and first support rods. This causes the drive frames to extend and retract the damping rods, thereby mitigating and absorbing the vibrations experienced by the column body, thus achieving the anti-resonance effect of the support plate and drive frames described in this application.