Electromagnetic-piezoelectric hybrid double-effect quasi-zero stiffness vibration energy harvesting device

Abstract

The invention provides an electromagnetic-piezoelectric hybrid double-effect quasi-zero-stiffness vibration energy harvesting device, and solves the defect that an existing device cannot realize energy harvesting while vibration isolation is realized. According to the invention, quasi-zero stiffness, piezoelectricity and electromagnetism are combined, and an electromagnetic-piezoelectric hybrid energy harvesting and quasi-zero stiffness vibration isolation dual-target system is realized. The electromagnetic-piezoelectric hybrid double-effect quasi-zero-stiffness vibration energy harvesting device provides excellent vibration isolation performance, and the piezoelectric material power generation module and the electromagnetic induction power generation module enable the device to achieve the purpose of energy harvesting, that is, vibration energy is collected and converted into usable electric energy while the excellent vibration isolation performance is achieved. Meanwhile, the energy harvesting system also has positive influence on the vibration isolation system, and the change of instantaneous physical properties of the energy harvesting system in the vibration process enables the performance of the vibration isolation system to be more excellent within a certain vibration range.

Description

technical field [0001] The invention belongs to the technical field of vibration energy collection, in particular to an electromagnetic-piezoelectric double-effect quasi-zero-stiffness vibration energy harvesting device. Background technique [0002] Under the current situation of scientific and technological development, mechanical equipment in aviation, aerospace, navigation, machinery manufacturing and other fields are gradually becoming more sophisticated and intelligent, and have higher requirements for the working environment. Therefore, the quasi-zero stiffness vibration isolator with low-frequency vibration isolation performance is widely used. [0003] Since the 1970s, energy, population, environment, resources, and food have been listed as five major problems in the world, and all countries have attached great importance to the development and utilization of energy. In view of the fact that vibration is a clean energy that widely exists in vibrating mechanical env...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the deficiency that the existing devices cannot achieve energy capture while isolating vibrations, and propose an electromagnetic-piezoelectric hybrid double-effect quasi-zero-stiffness vibration energy harvesting device

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