Viscous fluid damper with self-testing performance

Abstract

The invention discloses a viscous fluid damper with self-testing performance. The viscous fluid damper with the self-testing performance is characterized in that the viscous fluid damper comprises a guide rod and a cylinder; the right end of the guide rod successively passes through a force sensor, a transmission rod and a stepper motor to be fixedly connected with a second connecting earring; thestepper motor is internally integrated with a performance self-testing system; a through hole communicated with a baffle hole is opened on the side wall of the cylinder; the through hole and the baffle hole are internally provided with a baffle capable of sliding; the outer end of the baffle is fixed with a flanged connector that can be adsorbed by a magnet; a reset spring is arranged between theflanged connector and the cylinder; an electromagnet that absorbs the flanged connector and pulls the baffle to move outward when electrified is fixed on a protective cover; a displacement sensor isdisposed between the protective cover and a cover plate. The viscous fluid damper with the self-testing performance has the advantages of ensuring that the viscous fluid damper can effectively reducevibration of building structures during an earthquake and guaranteeing the safety of the building structures with relative movement occurring between the guide rod and the cylinder by the stepper motor and with the performance self-testing system conducting automatic detection of energy consumption performance of the viscous fluid damper.

Description

technical field [0001] The invention belongs to a civil engineering structure vibration control device, in particular to a viscous fluid damper with performance self-test. Background technique [0002] Earthquake is one of the most destructive sudden natural disasters faced by human beings, and it is also a disaster event with high frequency in recent years. Located between the Pacific Rim and the Eurasian seismic belt, my country is one of the most seismically active countries in the world, and more than half of the country's land area is seriously threatened by earthquakes. The results of previous earthquake investigations all show that the damage and collapse of buildings is the main cause of casualties and economic losses. With the acceleration of urbanization and denser urban buildings and populations, earthquake damage may be more serious. Therefore, how to reduce the vibration of buildings, especially high-rise and super high-rise buildings under earthquake action, ...

AI Technical Summary

Problems solved by technology

The existing non-destructive testing methods cannot effectively detect the performance of the viscous fluid damper, and the disassembly test has the disadvantages of time-consuming, laborious and expensive, and the viscous fluid damper is often installed inside the wall or in a place that is difficult for the testing personnel to reach. Local, non-destructive testing and disassembly experimental testing are difficult to implement in actual engineering

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