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

Roller washing machine vibration radiation noise prediction method based on dynamic simulation

A technology of dynamic simulation and drum washing machine, applied in the field of simulation calculation

Active Publication Date: 2018-11-06
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the field of structural vibration radiation noise calculation of drum washing machines, there is no complete calculation process similar to the present invention

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
  • Roller washing machine vibration radiation noise prediction method based on dynamic simulation
  • Roller washing machine vibration radiation noise prediction method based on dynamic simulation
  • Roller washing machine vibration radiation noise prediction method based on dynamic simulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 2 to Figure 6 As shown, the specific implementation process of the vibration radiation noise prediction method of drum washing machine based on dynamic simulation in the present invention is:

[0036] Step 1: Establish an accurate and credible box model according to the actual mode of the box, such as figure 2 shown;

[0037]Step 2: Assemble the box body and the remaining rigid body model in the virtual prototyping software Adams, give the inner drum an initial rotation speed, and obtain the excitation of the flexible connection point.

[0038] The third step: Import the box model into Patran, import the excitation obtained in the second step at the flexible connection point, and obtain the vibration response result of the box through patran frequency response analysis.

[0039] The fourth step: Import the established acoustic model and the vibration response results obtained in the third part into Actran to calculate the vibration radiation noise of ...

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 a roller washing machine vibration radiation noise prediction method based on dynamic simulation. According to the method, by performing many-body dynamic analysis, vibration response analysis and vibration radiation noise analysis on a washing machine, Actran computational analysis software based on finite elements / infinite elements is adopted finally, precise prediction ofexternal sound field A-weighted sound pressure level distribution can be realized, and a basis is provided for subsequent work more visually.

Description

technical field [0001] The invention relates to a method for predicting vibration radiation noise of a drum washing machine, and belongs to the technical field of simulation calculation. Background technique [0002] During the research and development process of the drum washing machine, due to the high-speed rotation of the drum, the inherent eccentricity of its structure caused many vibration problems. The vibration radiation noise generated by the vibration of the cabinet due to the eccentric rotation of the drum is an important part of the working noise of the drum washing machine. At present, the problem of vibration and noise of drum washing machines is serious, and customers complain constantly, which seriously affects the reputation of users of washing machine products. In the early development process of the washing machine, the computer-based digital simulation analysis method has been widely used in the analysis of the structural vibration and noise of the washi...

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): G06F17/50
CPCG06F30/20
Inventor 姜金辉杨泓基王轲毕鑫屈艺丹孔黄飞陈建鼎
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

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