Composite damping elastic support

Abstract

The invention provides a compound damping elastic support used for the cushion bases of the floating compartments and devices used for a ship, the elastic chair of a vehicle, the anti-shaking foundations of engineering constructions and engineering facilities and the elastic bases of various electromechanical devices and facilities, thus meeting the comprehensive technical requirements of shaking isolation, anti-shaking and cushion of an engineering system, specially the safety protection requirement on low-frequency large-displacement impact and interference. The compound damping elastic support which consists of an annular elastic body and a damping cushion mechanism is provided with a quasilinear comprehensive rigidness characteristic under a normal working situation which is automatically converted into a softening nonlinear rigidness characteristic under the transient large displacement working situation. The compound damping elastic support can lead the engineering system to realize excellent comprehensive dynamic technology performance of low-frequency shaking-isolation effect, impact safety, stability in a normal working state, and has the advantages of simple structure, long service life, high safety and reliability as well as low maintenance cost.

Description

technical field [0001] The invention relates to a composite damping elastic bearing, which is used for anti-seismic, buffering and vibration isolation of ships, vehicles, buildings and various electromechanical equipment and facilities. Background technique [0002] Ships, vehicles, buildings, and various electromechanical equipment and facility systems require a stable working environment and reasonable vibration isolation effects under the general medium and high-frequency small vibration interference conditions, but when subjected to irregular large impacts (such as explosions, Earthquake, strong turbulence, or the impact of an aircraft landing on the deck of a ship), the system should also have the ability to fully absorb and consume large input energy, so as to reduce the impact response of equipment and staff, and ensure that the system is not unstable. , to protect the normal operation of the equipment and the personal safety of the staff. In the field of vibration c...

AI Technical Summary

Problems solved by technology

The air spring is made of air rubber made of rubber, which can meet the requirements of low-frequency vibration isolation, but its biggest problem is how to solve the problem of gas leakage in the capsule and the physical strength and life of the rubber material. The strength requirement is difficult to achieve; the multi-layer steel plate rubber shock absorber also has the physical strength and life limit of the rubber and is heavy, and it is difficult to achieve the low-frequency characteristic requirements; and the most important thing is that the above products do not have the function of automatic stiffness change , poor adaptability to large displacement vibration shock interference and prone to colloidal fracture, these defects are difficult to meet the system's specific environmental requirements, operational stability and reliability requirements

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