Dynamic equation-based hypersonic-aircraft coupling analysis method

A hypersonic and dynamic equation technology, applied in the field of aerospace control, can solve problems such as insufficient attention to coupling problems and reduced performance of flight coordination control

Inactive Publication Date: 2018-09-28
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some scholars and research institutions have done in-depth research on the flight control problem, but they have not paid enough attention to the coupling problem
The existing coupling relationship descriptions are mostly linear and

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
  • Dynamic equation-based hypersonic-aircraft coupling analysis method
  • Dynamic equation-based hypersonic-aircraft coupling analysis method
  • Dynamic equation-based hypersonic-aircraft coupling analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0088] Such as figure 1 As shown, a hypersonic vehicle coupling analysis method based on dynamic equations includes the following steps:

[0089] (1) Establish the dynamic equation of hypersonic vehicle attitude;

[0090] (2) According to the flight characteristics of hypersonic vehicles, the principle of dynamic coupling relationship is explained, and the coupling analysis method of hypersonic vehicles based on dynamic equations is proposed;

[0091] (3) Apply the hypersonic vehicle coupling analysis method based on the dynamic equation given in step (2) to the hypersonic vehicle attitude dynamic equation established in step (1) to obtain the dynamic coupling relationship between state and input;

[0092] (4) Using the dynamic coupling relationship between state and input in the attitude model obtained in step (3), design the hypersonic vehicle attitude coordination controller.

[0093] in figure 1 In, it shows the mental logic diagram of the hypersonic vehicle coupling analysis meth...

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 dynamic equation-based hypersonic-aircraft coupling analysis method. The method comprises the following steps: (1) establishing hypersonic-aircraft attitude dynamic-equations; (2) providing the dynamic equation-based hypersonic-aircraft coupling analysis method for flight characteristics of a hypersonic vehicle; (3) applying the dynamic equation-based hypersonic-aircraftcoupling analysis method, which is given in the step (2), to the hypersonic-aircraft attitude dynamic-equations, which are established in the step (1), to obtain dynamic coupling relationships betweenstatus and input; and (4) using the dynamic coupling relationships, which are between the status and the input and in an attitude model obtained in the step (3), to design a hypersonic-aircraft attitude coordination controller. The method starts from the system dynamic-equations, an obtained coupling relationship matrix is nonlinear and dynamic, and coupling situations under actual flight statusare more comprehensively and objectively reflected.

Description

Technical field [0001] The invention relates to the technical field of aerospace control, in particular to a hypersonic vehicle coupling analysis method based on dynamic equations. Background technique [0002] Generally believed to be greater than 5M a The speed-flying aircraft is called hypersonic aircraft, which has the advantage of "occupying the air and space" and is currently one of the important technical fields actively engaged in research by major military powers in the world. However, due to its severe flight environment, complex nonlinear characteristics, and serious nonlinear coupling of its internal variables, it greatly increases the difficulty of flight control and even threatens flight safety. Therefore, in order to improve the flight quality, studying the coupling characteristics between the variables of hypersonic vehicles, and on this basis, designing a coordinated control system to deal with the coupling problem has become a hot and difficult research topic. ...

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): G06F17/50
CPCG06F30/15G06F30/20Y02T90/00
Inventor 王玉惠冯星凯吴庆宪张晓辉陈谋侯思远李云鑫
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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