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

A design method of an aero-engine blade simulation part

A technology of aero-engine and design method, applied in computing, special data processing applications, instruments, etc., can solve problems such as no engineering practical value, inability to accurately simulate blade load response, etc., achieving low cost, simple processing, and cost reduction Effect

Active Publication Date: 2019-06-14
BEIHANG UNIV
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing literature "Li Donglin, He Weifeng, You Xi, etc. Experimental research on laser shock strengthening to improve the fatigue strength of TC4 titanium alloy injured by foreign objects [J]. The impact of alloy fatigue strengt...

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 design method of an aero-engine blade simulation part
  • A design method of an aero-engine blade simulation part
  • A design method of an aero-engine blade simulation part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The technical scheme of the design method of an aeroengine blade simulation part of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the present invention relates to a design method of an aeroengine blade simulation part, and the realization steps are as follows:

[0024] The first step is to determine the basic requirements of the simulation part design and form a test plan. The existing research results show that the effect of laser shock strengthening has a great relationship with the shape and size of the structure, and the strengthening effect of different geometric shapes under the same laser strengthening parameters is very different. In order to ensure that the strengthening effect of the test piece is similar to that of the real blade, truly reflect the distribution of the residual stress of the blade after laser shock strengthening, and improve the possibility of applying ...

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 design method of an aero-engine blade simulation piece, which is used for researching the influence of laser shock strengthening on the high-cycle fatigue life of a blade and comprises the following steps of (1) determining a blade simulation piece test scheme: determining examination section construction, determining a test form, determining a test instrument, determining a loading scheme and the like, and (2) determining the size of the simulation piece; according to test requirements, determining an examination cross section, measuring the cross section parameters, and simplifying the parameters into geometric shapes convenient to manufacture; and (3) reducing the blade root stress, ensuring that the simulation piece loses efficacy at the notch position, and verifying the necessity of reinforcement, so that the method can be completed through the thickness-variable design and the circular bead transition; and (4) determining the shape and size of the notch, wherein the simulation piece notch is designed to be a square notch, and the notches of different sizes can be arranged for research and comparison; and (5) determining the height of the test pieceto mainly adjust the inherent frequency of the blade.

Description

technical field [0001] The invention relates to a design method of an aeroengine blade simulation part, which is used to study the influence of laser shock strengthening on the high-cycle fatigue life of the blade, and can simulate the high-cycle fatigue test effect of a real blade with a gap after laser shock strengthening, which belongs to aerospace The field of engine technology. Background technique [0002] During the use of the aero-engine, the leading edge of the blade is very easy to be damaged by foreign objects. The existence of the notch at the leading edge will cause stress concentration, weaken the high-cycle fatigue resistance of the blade, and increase the hidden danger of the safe use of the wheel. Laser shock peening process is a commonly used treatment method in industry to generate residual stress and improve material fatigue resistance. Laser shock strengthening of the leading edge of the blade to improve the fatigue resistance of the material near the ...

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
Inventor 胡殿印王荣桥苏潇田腾跃毛建兴
Owner BEIHANG UNIV
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