Turbine blade disc structure service life reliability design method

A technology of turbine blisk and design method, applied in calculation, special data processing applications, instruments, etc., can solve the problems of quantifying structural failure, difficult to accurately give the actual life of the structure, etc., and achieve the effect of optimizing the turbine blisk structure

Active Publication Date: 2016-03-16
BEIHANG UNIV
View PDF3 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional design method of turbine blisk structure is mainly based on deterministic design, combined with so...

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
  • Turbine blade disc structure service life reliability design method
  • Turbine blade disc structure service life reliability design method
  • Turbine blade disc structure service life reliability design method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The technical solution of the design method for the life reliability of the turbine blisk structure of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] Considering the dispersion of factors such as load, material and geometry, combined with the life reliability criterion of the turbine blisk structure, the design method for the life reliability of the turbine blisk structure proposed by the present invention, the process is shown in figure 1 .

[0020] (1) Design of the initial turbine blisk structure scheme: design and determine the initial scheme of the turbine blisk structure according to the traditional strength analysis method, and at the same time determine the geometry of the turbine blisk structure, and calculate the weight of the initial scheme, which will be used for subsequent design decisions Provide data basis;

[0021] (2) Deterministic detailed design: For the material selected for the turbine ...

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 turbine blade disc structure service life reliability design method. An initial scheme for a turbine blade disc structure is determined according to a traditional strength and service life analysis method, a geometrical shape of the structure is determined and weight of the structure is calculated; determinacy load of the structure is acquired and detailed 3D stress/strain analysis is conducted; a determinacy design criteria is designated to be an optimized constraint condition, and the design is returned to design support when the result does not meet the criteria demand; influence of the turbine blade disc structure is analyzed and the turbine blade disc is partitioned; structure reliability under each failure mode is calculated and a service life reliability analysis result is evaluated with the combination of the service life probability criteria; the design support is required when the structure reliability result does not meet the criteria demand; combined risk evaluation is conducted to a risk level of each failure mode and overall failure probability of the turbine blade disc structure is calculated; each technical index is determined whether to meet demands; and design support is required when the demands are not met or modifications are conducted to the size or the material.

Description

technical field [0001] The invention relates to a reliability design method aimed at the structural life of an aeroengine turbine blisk, which is a design method capable of considering the dispersion of factors such as materials and geometry, and belongs to the technical field of aerospace engines. Background technique [0002] Aeroengine is an extreme product, working under complex loads / environments such as high temperature, high pressure, and high speed; the improvement of engine performance and safety indicators requires the engine to be light in weight, long in life, and high in reliability (for example, for safe flight Engine structural parts require a low probability of failure, up to 10 -5 -10 -7 times / flight hour). At present, the structure of active and in-service engines is heavy (performance is not enough) and reliability is not guaranteed. The reason is that in the design process, some parts of the structure are conservatively designed, which will lead to dan...

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
CPCG06F30/13
Inventor 胡殿印王荣桥李达毛建兴申秀丽
Owner BEIHANG UNIV
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