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

MEMS sensor-based fan blade vibration detection and control device

A technology for fan blades and control devices, applied in the field of automatic identification, can solve problems such as hindering the development of wind power technology, blade fracture failure, wind instability, etc., and achieve the effects of avoiding fan failure, accurate control, and avoiding blade flutter.

Active Publication Date: 2015-09-09
SHENYANG INST OF ENG
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the increasingly prominent environmental and energy issues, wind energy, as a renewable and non-polluting green energy, has attracted more and more attention; wind power generation is one of the main forms of utilizing wind energy, and the fan blade is the core component of the fan. It is an important part of the energy conversion of the fan. During the rotation of the blade, when the blade turns from the top to the bottom, the force changes and changes alternately, as well as the instability of the wind, which will cause the vibration of the fan; the violent vibration of the fan blade Vibration can lead to cracks. If the vibration is not effectively controlled, it may cause the fracture and failure of the entire blade, resulting in huge economic losses; therefore, the vibration control of the blade is one of the important obstacles to the further development of wind power technology.

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
  • MEMS sensor-based fan blade vibration detection and control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Such as figure 1 As shown, the present invention provides a MEMS sensor-based fan blade vibration detection and control device, which consists of a MEMS sensor (1), a controller (2), a stepping motor (3), a mass block (4), a slideway (5 ), lead screw (6). The fan blade vibration control device of the present invention can effectively avoid blade vibration and avoid failure of the fan.

[0019] A MEMS sensor-based fan blade vibration detection and control device of the present invention is that the controller (2) receives the acceleration and vibration amplitude signals of the MEMS sensor (1), and when the vibration amplitude signal is close to the natural frequency of the fan, the step is controlled by the PID algorithm. The motor (3) changes the position of the mass block (4) in the fan blade, and at the same time changes the mass distribution of the fan blade, thereby changing the vibration frequency of the fan blade.

[0020] When the fan blades rotate, the control...

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 invention provides an MEMS sensor-based fan blade vibration detection and control device, and consists of an MEMS sensor (1), a controller (2), a stepping motor (3), mass blocks (4), a slide rail (5) and a lead screw (6). The device changes the frequency of fan blades by controlling mass distribution of the mass blocks in the fan blades, thereby enabling the fan blades to be balanced, and achieving an effect of alleviating vibration. By adoption of a fan blade vibration active control system, blade vibration is effectively avoided, and preventing a fan failure from being caused.

Description

technical field [0001] The invention belongs to the technical field of automatic identification, and in particular relates to a vibration detection and control device for fan blades based on MEMS sensors. Background technique [0002] With the increasingly prominent environmental and energy issues, wind energy, as a renewable and non-polluting green energy, has attracted more and more attention; wind power generation is one of the main forms of utilizing wind energy, and the fan blade is the core component of the fan. It is an important part of the energy conversion of the fan. During the rotation of the blade, when the blade turns from the top to the bottom, the force changes and changes alternately, as well as the instability of the wind, which will cause the vibration of the fan; the violent vibration of the fan blade Vibration can lead to cracks. If the vibration is not effectively controlled, it may cause the failure of the entire blade, resulting in huge economic losse...

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 Applications(China)
IPC IPC(8): G05D19/02
Inventor 刘姝蒋洪亮王存旭赵琰单超曹福毅王晓文王宝石陈琳
Owner SHENYANG INST OF ENG
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com