Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A patch type piezoelectric drive and energy harvesting vibration damping device

A piezoelectric drive, energy harvesting technology, applied in aerospace safety/emergency devices, motor vehicles, transportation and packaging, etc., can solve problems such as the inability to adjust the optimal frequency parameters, electromagnetic interference, and inapplicability of electromagnetic electricity generation, and achieve improved performance. The effect of energy utilization efficiency, guaranteed stability and simple structure

Active Publication Date: 2022-04-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: Some schemes use cutting magnetic induction lines to generate electric energy and perform vibration reduction. Once the optimal frequency parameters are set, they cannot be adjusted, and electromagnetic power generation is not suitable for use in space electromagnetic radiation environments, and the application range is limited.
There are also some dynamic vibration absorbers with active frequency conversion technology that use electromagnetic motors to adjust the stiffness, for example: use voltage to adjust the stiffness and damping of the structure, but this structure only has the function of absorbing vibration, and does not realize energy collection and utilization. Secondly, the structure uses piezoelectric materials The small deformation adjusts the stiffness, making the adjustment range narrow, and adjusting the applied voltage consumes a lot of energy
[0004] Generally speaking, the application of traditional electromagnetic motors in the space environment faces problems such as electromagnetic interference, complex structure, and low positioning accuracy. In addition, all vibration energy is transferred in the form of energy dissipation, and the energy cannot be used in time; how to take into account the reduction of aerospace equipment? The demand for vibration and energy saving is a direction that needs to be studied during the development of on-orbit spacecraft

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A patch type piezoelectric drive and energy harvesting vibration damping device
  • A patch type piezoelectric drive and energy harvesting vibration damping device
  • A patch type piezoelectric drive and energy harvesting vibration damping device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Hereinafter, embodiments of the present invention will be described in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses a patch-type piezoelectric drive and energy collection vibration damping device, which relates to the field of vibration control, integrates vibration damping and energy collection, has the characteristics of simple structure, small size, etc., piezoelectric threaded motor The fast response and precise action can adjust the span between the two threaded blocks to achieve the best vibration damping effect. In addition, the power-off self-locking can ensure the stability of the vibration damping system. The plate piezoelectric spring collects vibration energy, accelerates energy dissipation, and supplies power to the sensor at the same time, improving energy utilization efficiency. The present invention is applicable to application scenarios where both vibration reduction and energy saving requirements of equipment need to be taken into account, and is especially applicable to on-orbit spacecraft.

Description

technical field [0001] The invention relates to the field of vibration control, in particular to a patch type piezoelectric drive and energy collection vibration damping device. Background technique [0002] Mechanical vibration can produce various hazards and is one of the direct causes of failure and damage of mechanical structures. In actual engineering, how to absorb and suppress the vibration of structures is a problem that is closely concerned in the fields of mechanical engineering, aerospace and other fields. With the development of aerospace equipment, it is necessary to control the internal vibration of satellites more effectively to minimize the harm caused by vibration, so as to meet the development needs of high-precision and high-resolution satellites in the future. Flywheel vibration is an important factor that induces satellite platform micro-vibration and affects the performance of satellite sensitive loads. Traditional flywheel vibration reduction technolo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/52B64G1/66
CPCB64G1/52B64G1/66
Inventor 周春华吴义鹏尹永康熊克
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products