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

Piezoelectric body multi-field coupling induced vibration fatigue experiment device and test method

A technology of vibration fatigue and testing methods, which is applied in the directions of vibration testing, application of repeated force/pulsation force to test material strength, measuring devices, etc. It can solve problems such as difficult to realize multi-field coupling loading, and achieve simple and reliable adjustment and testing methods, The effect of improving accuracy and simplifying the structure

Pending Publication Date: 2020-05-15
NANCHANG HANGKONG UNIVERSITY
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to aim at the defects and insufficiencies of the prior art, provide a piezoelectric body multi-field coupling induced vibration fatigue experiment device and testing method, and solve the problem that it is difficult to realize multi-field coupling loading in the piezoelectric structure vibration fatigue experiment

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
  • Piezoelectric body multi-field coupling induced vibration fatigue experiment device and test method
  • Piezoelectric body multi-field coupling induced vibration fatigue experiment device and test method
  • Piezoelectric body multi-field coupling induced vibration fatigue experiment device and test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Below in conjunction with accompanying drawing, the present invention will be further described.

[0029] see Figure 1-4 As shown, the technical solution adopted in this specific embodiment is: it includes an excitation device, a temperature field loading device and an electric field loading device;

[0030] The vibration excitation device is divided into a sending excitation end and a receiving excitation end;

[0031] The described sending excitation end comprises motor support 3, speed-regulating motor 2, shaft coupling 14, angler 13 and angler support 12, flange 11, exciting disc 4, magnet A 10; The speed motor 2 is fixed on the base plate 1 through the motor bracket 3; the output shaft of the speed-regulating motor 2 is connected with the input shaft of the angler 13 through the coupling 14; the angler 13 is fixed on the base plate 1 through the angler support 12; The output shaft of the device 13 is connected with the vibration disc 4 through the flange 11, and...

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 discloses a piezoelectric body multi-field coupling induced vibration fatigue experiment device and a test method. The piezoelectric body multi-field coupling induced vibration fatigue experiment device comprises a vibration excitation device, a temperature field loading device and an electric field loading device, wherein the vibration excitation device uses a non-contact magnetic force between a rotating magnetic field and a magnet as an excitation force; the temperature field loading device arranges a heating coil around an experimental object; and the electric field loading device applies a controllable electric load to an experiment object by connecting the experiment object with an external adjustable power supply. The device is simple, easy to use, low in cost and highin controllability, can provide stable and controllable force load or force, electric load or heat, force load or heat, force and electric load for the experiment object, is high in accuracy of experimental results, and has important value for researching the vibration fatigue life test problem of the piezoelectric structure under the multi-field coupling loading effect.

Description

technical field [0001] The invention relates to the field of mechanical vibration, in particular to an experimental device and a testing method for vibration fatigue induced by multi-field coupling of a piezoelectric body. Background technique [0002] Vibration is one of the unavoidable loads that components on power machinery must bear. Under the continuous action of vibration load, fatigue cracks and even fatigue fractures may occur in components. Especially for some mechanical parts, in addition to vibration load, it is often also subjected to electric field load and thermal load. Under the coupling effect of multi-field loads, the fatigue life of mechanical parts will be greatly shortened. In order to carry out research on vibration fatigue life prediction of mechanical parts, it is very necessary to invent a testing device for vibration fatigue experiments of mechanical parts under multi-field coupling. [0003] There are many existing vibration fatigue test devices...

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): G01N3/34G01M7/02
CPCG01M7/022G01N3/34G01N2203/0005G01N2203/0032G01N2203/0064G01N2203/0066G01N2203/0226
Inventor 刘文光吴兴意吕志鹏方孟翔
Owner NANCHANG HANGKONG UNIVERSITY
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