Modeling method for secondary path of helicopter vibration active control system

An active control system, secondary path technology, applied in general control systems, control/regulation systems, adaptive control, etc., to achieve high feasibility, high effectiveness and reliability, and short time.

Active Publication Date: 2020-03-24
CHINA HELICOPTER RES & DEV INST +1
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most active vibration control systems for helicopters are in the theoretical research stage in China, and there are no other systems under research

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
  • Modeling method for secondary path of helicopter vibration active control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] The embodiment of the present invention provides a secondary path modeling method for the active control system of helicopter vibration. The method is used for the active control system of helicopter vibration. The active control system of helicopter vibration includes a controller, several actuators (centrifugal), A number of vibration sensors, in which the controller is used to collect the data of the vibration sensor, run the algorithm...

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 belongs to the technical field of helicopter vibration active control, and discloses a modeling method for a secondary path of a helicopter vibration active control system. The method comprises the following steps: S1, numbering a plurality of actuators and a plurality of vibration sensors; S2, starting the ith actuator; S3, sending an output force instruction to the ith actuator; S4, after the output force of the ith actuator is stabilized, selecting vibration data of all vibration sensors in a preset time period; S5, closing the ith actuator to stop working; S6, repeatedly executing the steps S2-S5 until the vibration data of all the vibration sensors corresponding to the Nth actuator is obtained, thereby obtaining all the collected vibration data; and S7, determining a secondary path model according to all the acquired vibration data. The method is high in feasibility, short in time consumption and relatively high in effectiveness and reliability. And after the secondary path modeling is completed, if the force transmission path and the dynamic characteristics of the helicopter are not changed, modeling does not need to be carried out again.

Description

technical field [0001] The invention belongs to the technical field of helicopter active vibration control, and in particular relates to a secondary path modeling method for a helicopter active vibration control system. Background technique [0002] The main function of the helicopter vibration active control system is to reduce the vibration level of the helicopter through active control. The basic principle is to generate vibration through the output control force of the actuator to offset the vibration at the vibration sensor. In order to achieve the vibration reduction function, the system needs to obtain the secondary channel model before the vibration reduction, that is, the transfer function from the installation position of the actuator to the installation position of the vibration sensor. This model is the key to whether the system can achieve the vibration reduction function. [0003] The secondary path modeling method of helicopter active vibration control system ...

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): G05B13/04
CPCG05B13/042
Inventor 邓景辉张若忱陈新华李明强梁昆王国胜邓细凤
Owner CHINA HELICOPTER RES & DEV INST
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