Design method of ridge-shaped osculating-cone wave-rider with large capacity and high lift-to-drag ratio

A technology with high lift-to-drag ratio and design method, applied in aircraft parts, ground equipment, transportation and packaging, etc., can solve problems such as lift-drag ratio loss

Active Publication Date: 2017-02-22
NAT UNIV OF DEFENSE TECH
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide a large-volume, high-lift-to-drag ratio rid...

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
  • Design method of ridge-shaped osculating-cone wave-rider with large capacity and high lift-to-drag ratio
  • Design method of ridge-shaped osculating-cone wave-rider with large capacity and high lift-to-drag ratio
  • Design method of ridge-shaped osculating-cone wave-rider with large capacity and high lift-to-drag ratio

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] The design method of a ridge-shaped kiss-cut cone waverider with large volume and high lift-to-drag ratio provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0066] A method for designing a ridge-shaped kiss-cut cone waverider with large volume and high lift-to-drag ratio, comprising the following steps:

[0067] In the first step, the flight conditions, size constraints and performance requirements of the waverider are given, and the kiss-cut cone waverider as a benchmark is designed according to the kiss-cut cone theory and size constraints.

[0068] The flight conditions of the waverider mainly refer to the design point and flight range, including parameters such as flight altitude h, flight Mach number Ma, and angle of attack α. For the specific definitions of these parameters, refer to the standard GB / T 14410-1993 of the People's Republic of China.

[0069] Dimensional constraints include waverider le...

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 design method of a ridge-shaped osculating-cone wave-rider with a large capacity and a high lift-to-drag ratio. Firstly, flight conditions, dimension constraints and performance requirements of a wave-rider are given, and an osculating-cone wave-rider is designed according to an osculating-cone theory and the dimension constraints; then, a volume body is designed according to the dimension constraints; finally, a standard wave-rider is combined with the volume body, wing-body fusing operation is conducted to design the upper surface of the wave-rider again, and the finished ridge-shaped osculating-cone wave-rider is obtained. According to the design method, the ridge-shaped wave-rider which meets volume index requirements can be designed according to a task requirement; under the condition of an incidence angle, the wave-rider has high-lift-to-drag-ratio aerodynamic performance, and the problem that the lift-to-drag ratio of the wave-rider is reduced due to a volume requirement is effectively solved.

Description

technical field [0001] The invention relates to the design of the aerodynamic shape of a hypersonic vehicle, in particular to a design method for a ridge-shaped kiss-cut cone waverider with a large volume and high lift-to-drag ratio. Background technique [0002] A hypersonic vehicle is one that travels in or across the atmosphere at speeds of Mach 5 or higher. For a hypersonic vehicle, no matter what shape it adopts, it is necessary to ensure good aerodynamic performance of the vehicle, and the most important indicator of good aerodynamic performance is that the vehicle has a high lift-to-drag ratio (that is, the lift coefficient and the drag coefficient Ratio). The waverider is currently recognized as a better aerodynamic layout design scheme for hypersonic vehicles, and its shape is unique and flexible. In the design flight state, the shock wave generated by the waverider is well attached to the leading edge, and the high-pressure airflow behind the wave is limited to t...

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): B64F5/00
CPCB64F5/00
Inventor 柳军符翔王源杰丁峰刘珍黄伟罗仕超李开张宝虎闻讯
Owner NAT UNIV OF DEFENSE TECH
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