Vibration isolation and reduction support based on memory alloy

Abstract

The invention discloses a vibration isolation and reduction support based on memory alloy. The vibration isolation and reduction support comprises a plate spring set, an upper panel and a lower panel. The plate spring set is made of memory metal. During work, when the upper panel or the lower panel is under the action of vibration loads, the relative vertical distance between the upper panel and the lower panel can be changed, on one hand, the memory alloy plate spring set is compressed and deformed to absorb energy or recovers to the original shape to release energy, and therefore the vibration isolation and reduction aim is achieved through the specific structure and material characteristics of the memory alloy plate spring set; and on the other hand, a memory alloy rope is stretched or retracted and deformed along with alternate deformation of the memory alloy plate spring set, and large hysteretic energy consumption and restoring force are provided through the structure of the memory alloy rope and the functions of materials. The vibration isolation and reduction support can effectively resist vertical vibration, the damping effect is good, the energy consumption capacity is high, extremely high reliability and stability are achieved during long-term work, automatic recovery can be achieved after vibration is conducted again, and no reset device needs to be additionally arranged.

Description

technical field [0001] The invention relates to the technical field of vibration reduction in mechanical engineering and civil engineering, in particular to a vibration isolation and vibration reduction support based on a memory alloy. Background technique [0002] The vibration isolation and vibration reduction support is a device installed between the upper and lower structures or between the upper structure and the base. This device is mainly used to increase the flexibility of the structure, prolong the natural vibration period of the structure, and increase the damping of the structure. Dissipate, isolate or delay vibration energy to reduce the vibration response of the structure, protect the structure, and avoid the occurrence of vibration damage. [0003] The vibration isolation and vibration reduction bearings in the prior art are mainly divided into three types: rubber pad bearings, sliding friction bearings and friction rocking bearings; among them, rubber pad bear...

AI Technical Summary

Problems solved by technology

[0003] The vibration isolation and vibration reduction bearings in the prior art are mainly divided into three types: rubber pad bearings, sliding friction bearings and friction rocking bearings; among them, rubber pad bearings have certain vibration isolation and vibration reduction performance in the horizontal direction, but Because its damping is very small and does not have sufficient energy dissipation capacity, it is powerless to vertical vibration caused by earthquakes, rail transit or stamping machine tools, and is generally used in combination with other dampers or energy-consuming equipment in structural use; in addition, rubber There are also problems of aging, corrosion and environmental pollution in the use of materials; sliding friction bearings and friction rocking bearings effectively limit the transmission and feedback of vibration energy through relative sliding motion and frictional energy consumption. This method is reliable in force, The construction is not difficult, and there is no need to consider the rust prevention and damage replacement of steel parts. The biggest shortcoming is that an additional reset mechanism device is required, otherwise the structure cannot be reset after vibration. In addition, there are also sliding friction bearings and friction rocking bearings. Defects of poor vertical vibration resistance and poor stability

Images