Nonprobability reliability optimization based design method of vibration optimal control system

A technology of active control system and optimal control, applied in non-electric variable control, control/regulation system, mechanical oscillation control, etc., can solve problems such as non-technical and reporting

Active Publication Date: 2016-06-15
BEIHANG UNIV
View PDF1 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the existing patent literature and non-pa

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
  • Nonprobability reliability optimization based design method of vibration optimal control system
  • Nonprobability reliability optimization based design method of vibration optimal control system
  • Nonprobability reliability optimization based design method of vibration optimal control system

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0088] consider as figure 1 In the cantilever beam structure shown, the cantilever beam is initially disturbed in freedom, and the displacement is 5mm. The controller is designed by using the invention, so that the maximum displacement of the cantilever beam's degree of freedom is less than 1.1mm after 0.05s. The driver is located at the center of the cantilever beam, ten sensors are located under the cantilever beam, and all states of the cantilever beam are estimated by the observer, and then transmitted to the controller, and the controller applies the voltage signal to the cantilever beam after calculation. at the center of the surface. The geometric dimensions and material properties of the cantilever beam structure are shown in Table 1.

[0089] Table 1 Geometric dimensions and material properties of the cantilever beam structure

[0090]

[0091] The first step: First, use the large-scale commercial finite element analysis software ANSYS to carry out finite element...

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 nonprobability reliability optimization based design method of a vibration optimal control system. According to the method, a finite element equation of structural vibration is converted into a state space form via variable substitution, and a state space control equation of structural vibration is established; a nonprobability reliability analysis theory of an active control system of structural vibration is provided; and based on the provided nonprobability reliability analysis theory, reliability optimization is carried out on a controller obtained via an optimal control theory, and a closed-loop controller satisfying the reliability index is obtained. The uncertainly of a closed-loop control system is overcome in the aspect of reliability, and the problems that optimal control cannot satisfy the reliability requirement and robust control is too conservative can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of active control of structural vibration, in particular to a method for selecting an optimal control weighting function based on non-probabilistic reliability optimization. Background technique [0002] With the development of my country's aerospace technology, the requirements for the structural performance of aerospace equipment are getting higher and higher. Under the premise that the static strength of the structure can meet the design requirements, the requirements for structural vibration are becoming increasingly stringent. Especially in the field of aerospace, flexible structures with low stiffness and large size have become an important development trend. Such as space deployable antennas, spacecraft flexible robotic arms, solar panels and their supporting structures. Due to the small structural damping in space, these flexible structures will produce a continuous vibration response once disturbe...

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): G05D19/02
CPCG05D19/02
Inventor 王晓军李云龙邱志平王冲许孟辉王磊陈贤佳郑宇宁
Owner BEIHANG 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