A shock absorber with multiple inertial capacitive energy dissipation

CN117449679BActive Publication Date: 2026-06-30GANSU DIANTONG POWER ENG DESIGN CONSULTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GANSU DIANTONG POWER ENG DESIGN CONSULTING CO LTD
Filing Date
2023-10-26
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing building structures are unable to effectively absorb and dissipate energy when faced with earthquakes and wind-induced vibrations, leading to structural vibrations and displacements that affect safety and stability.

Method used

Design a shock absorber with multiple inertial capacity energy dissipation, combining the characteristics of ball screw and hydraulic inertial capacity, and achieve dual hydraulic damping energy dissipation and inertial shock absorption effect through the coordinated movement of piston rod, piston, screw and mass disk.

Benefits of technology

It significantly improves the seismic performance of building structures, reduces the risk of damage to buildings from earthquakes and wind disasters, enhances safety and stability, and reduces maintenance and repair costs.

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Abstract

This invention discloses a shock absorber with multiple inertial capacity energy dissipation mechanisms, integrating the characteristics of ball screw-type and hydraulic inertial capacity, providing superior performance in structural vibration reduction. It includes two hydraulic cylinders, each containing a piston, dividing the cylinder into two sealed chambers. One end of each chamber is connected to a piston rod, and the other end to a screw. A mass disk is located in the middle of the screw. The two hydraulic cylinders are connected by two external pipes. During operation, the horizontal movement of the piston rod drives the piston to compress the damping fluid, thus achieving a damping effect. The movement of the piston rod drives the ball screw to rotate, causing the mass disk to rotate, providing additional inertial damping. The flow of the damping fluid also drives the rotation of the hydraulic gears, providing inertial damping. This invention features a dual hydraulic damping energy dissipation mechanism, improving vibration reduction performance by adding both hydraulic and ball screw-type inertial containers, thereby reducing the response of building structures.
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