Inerter and friction pendulum support combined three-dimensional vibration isolation device

Abstract

The invention belongs to the field of vibration and noise control, and provides an inerter and friction pendulum support combined three-dimensional vibration isolation device. The device comprises a spiral spring, a rotating shaft, a rotating disc, rotating disc constraint components, coils, neodymium magnets, damping fluid, damping rods, an inerter system upper cover plate, an inerter system lower cover plate, a Teflon protection sleeve, a sliding block, an upper connecting plate and a lower connecting plate. An inerter vibration isolation system and a friction pendulum support are connectedin a decoupling manner so as to achieve three-dimensional vibration isolation. The spiral spring and the inerter system are connected in parallel so that effective vertical vibration isolation can beachieved, the a friction pendulum support can achieve the function of horizontal vibration isolation, due to the existence of a decoupling system, horizontal vibration isolation and vertical vibrationisolation can be achieved respectively, and three-dimensional vibration isolation is achieved. The inerter and friction pendulum support combined three-dimensional vibration isolation device can be widely applied to floating floors and other structures and important large equipment needing three-dimensional vibration isolation in special vibration reduction sections of rail traffic and with highrequirements for vibration reduction and noise reduction, and the three-dimensional vibration isolation effect is superior to that of existing steel spring vibration isolators.

Description

technical field [0001] The invention relates to a three-dimensional vibration isolation device combined with an inertial capacity and a friction pendulum support, belonging to the field of vibration and noise control. Background technique [0002] With the rapid development of social economy and the continuous expansion of the city, urban rail transit has been widely developed in major cities across the country. However, urban rail transit stations and maintenance depots will occupy more land resources, so property development above urban rail transit stations and maintenance depots has become an effective measure to save land resources and improve economic efficiency, but in urban rail transit stations and maintenance depots The property above the maintenance depot will face the vibration problem caused by the operation of the lower train, which will have a negative impact on the health of residents in the property above. [0003] Large-scale precision equipment has high r...

AI Technical Summary

Problems solved by technology

In industrial plants, the operation of equipment will also cause large vibrations in the plant. Long-term vibration will easily cause fatigue of employees, affecting the health of workers and the efficiency of production.

[0004] Vibration has been considered as one of the seven major public hazards in the world. At present, steel springs are usually used for vibration control by vibration isolation methods. However, steel springs have a single vibration isolation frequency and cannot take into account both vertical bearing and vibration isolation effects. In three-dimensional isolation Poor vibration performance cannot achieve the goal of vibration isolation well, and the application also has certain limitations. Therefore, the development of more efficient three-dimensional vibration isolation devices has a good application prospect

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