Magnetorheological vibration reduction system dynamics modeling device and method

A technology for dynamic modeling and vibration reduction systems, which is applied in complex mathematical operations, instruments, design optimization/simulation, etc., and can solve problems such as low signal differentiation and inability to well reflect the essential characteristics of the system.

Active Publication Date: 2021-07-20
PUTIAN UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For this reason, it is necessary to provide a dynamic modeling device and method for a magneto-rheological damping system based on VMD filter reconstruction to solve the problem of signal

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
  • Magnetorheological vibration reduction system dynamics modeling device and method
  • Magnetorheological vibration reduction system dynamics modeling device and method
  • Magnetorheological vibration reduction system dynamics modeling device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in combination with specific embodiments and accompanying drawings.

[0055] see figure 1 , the present embodiment provides a dynamic modeling device for a magnetorheological damping system based on VMD filter reconstruction, including a magnetorheological damping system and a vibration testing system;

[0056] The magneto-rheological damping system includes a base 110, a first elastic element 120, a second elastic element 130, a first cast iron block 140, a second cast iron block 150, and an eccentric excitation device 160. The first elastic element 120 One end of the second elastic element 130 is connected to the bottom of the base 110, and the other end is connected to the first cast iron block 140. One end of the second elastic element 130 is connected to the bottom of the base 110, and the other en...

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 relates to a magnetorheological vibration reduction system dynamics modeling device and method based on VMD filtering reconstruction. The device comprises a magnetorheological vibration reduction system and a vibration testing system. The magneto-rheological vibration reduction system comprises a machine base, a first elastic element, a second elastic element, a first cast iron block, a second cast iron block and an eccentric vibration excitation device; the vibration testing system comprises a frequency converter, a displacement sensor and a mode decomposition module, and the frequency converter is used for controlling the vibration excitation frequency of the eccentric vibration excitation device. The displacement sensor is used for obtaining a vibration displacement signal of a first cast iron block, the modal decomposition module is used for reconstructing the obtained vibration displacement signal based on variational modal decomposition to obtain a reconstruction analysis signal; an autoregression moving average model and an autoregression model of the reconstruction analysis signal are established; and an optimal model is selected as a magneto-rheological vibration reduction system dynamic model. And external excitation signal components are removed, and a reconstruction analysis signal reflecting the characteristics of the system is extracted.

Description

technical field [0001] The invention relates to the technical field of magnetorheological shock absorbers, in particular to a dynamic modeling device and method for a magnetorheological shock absorber system based on VMD filter reconstruction. Background technique [0002] Magnetorheological Fluid (MR fluid for short) is a controllable fluid, which is a relatively active research in smart materials. Magnetorheological fluid is a suspension formed by mixing tiny soft magnetic particles with high magnetic permeability and low magnetic hysteresis and non-magnetic liquid. This kind of suspension exhibits low-viscosity Newtonian fluid characteristics under zero magnetic field conditions; and high-viscosity, low-fluidity Bingham fluid characteristics under the action of a strong magnetic field. According to this characteristic, magnetorheological fluids are widely used Dampers or shock absorbers used in automobiles and vibration equipment. It is of great significance to study th...

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
IPC IPC(8): G06F30/20G06F119/14G06F17/18G06F17/13G06F17/14
CPCG06F17/18G06F17/13G06F17/14Y02T90/00
Inventor 陈庆堂黄宜坚
Owner PUTIAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap