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

A trajectory planning method for rocket soft landing based on convex optimization

A technology of trajectory planning and convex optimization, which is applied in space navigation equipment, space navigation vehicles, space navigation equipment, etc., can solve the problems of insufficient adaptability and poor anti-interference ability of rocket power soft landing section, and achieve improved convergence and computing efficiency, and the effect of improving adaptability

Active Publication Date: 2021-07-13
BEIJING AEROSPACE AUTOMATIC CONTROL RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a rocket soft landing trajectory planning method based on convex optimization, aiming to solve the technical problems of poor anti-interference ability of the rocket after entering the powered soft landing section and insufficient deviation adaptability of the rocket powered soft landing section

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
  • A trajectory planning method for rocket soft landing based on convex optimization
  • A trajectory planning method for rocket soft landing based on convex optimization
  • A trajectory planning method for rocket soft landing based on convex optimization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0053] Please also refer to Figure 1 to Figure 3 , a convex optimization-based rocket soft landing trajectory planning method provided by the present invention will now be described. Described a kind of rocket soft landing trajectory planning method based on convex optimization, comprises the following steps:

[0054] S1. According to the rocket soft landing process, establish the rocket power soft landing segment motion equation satisfying convex optimization, the rocket power soft landing segment state constraint equation, and obtain the rocket power soft landi...

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 rocket soft landing trajectory planning method based on convex optimization, which belongs to the technical field of launch vehicle control and comprises the following steps: establishing a rocket power soft landing section motion equation satisfying convex optimization according to the rocket soft landing process, and rocket power soft landing The state constraint equation of the rocket power soft landing segment is obtained, and the objective function of the rocket power soft landing segment is obtained; the online trajectory sequence of the rocket power soft landing segment is established according to the motion equation of the rocket power soft landing segment, the state constraint equation of the rocket power soft landing segment, and the objective function of the rocket power soft landing segment Convex optimization equation; online rolling planning of the ideal trajectory with the largest feasible domain in the soft landing segment. The invention provides a rocket soft landing trajectory planning method based on convex optimization, which improves the anti-interference ability of the reusable rocket after entering the power soft landing section, and is suitable for solving complex constraint trajectory planning problems online.

Description

technical field [0001] The invention belongs to the field of launch vehicle control, and more specifically relates to a trajectory planning method for rocket soft landing based on convex optimization. Background technique [0002] The vertical recovery technology of reusable launch vehicles is one of the important development directions of new generation launch vehicles. According to the actual flight status in the powered soft landing stage, online planning of the landing trajectory is one of the effective ways to enhance the deviation adaptability and improve the landing accuracy. In the current online trajectory planning method, the optimal thrust amplitude command planned online usually has the characteristics of Bang-Bang control, that is, the engine works with the minimum thrust first, and then switches to the maximum thrust. However, when the thrust adjustment process is considered for this type of ideal landing trajectory, due to the large thrust span, the delay of ...

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 Patents(China)
IPC IPC(8): B64G1/24
CPCB64G1/242
Inventor 王聪宋征宇胡海峰巩庆海
Owner BEIJING AEROSPACE AUTOMATIC CONTROL RES INST
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