A method for evaluating an application effect of a thermal barrier coat for a turbine blade

A technology of thermal barrier coatings and turbine blades, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as poor thermal insulation performance, disasters, difficulties, etc., and achieve design and evaluation, and good economy benefit, reducing the effect of the application

Active Publication Date: 2019-03-08
XIANGTAN UNIV
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the harsh service environment, the thermal barrier coating may peel off and fail during the application process, resulting in the blade base being exposed to high-temperature gas, resulting in huge losses and disasters. Therefore, the service life restricts the application and development of thermal barrier coatings another key question
[0004] The thermal insulation performance and service life of thermal barrier coatings are two very important parameters, which have been studied and predicted in large quantitie

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 method for evaluating an application effect of a thermal barrier coat for a turbine blade
  • A method for evaluating an application effect of a thermal barrier coat for a turbine blade
  • A method for evaluating an application effect of a thermal barrier coat for a turbine blade

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0037] Such as figure 1 As shown, the evaluation method of the application effect of the turbine blade thermal barrier coating of the present invention includes the following steps:

[0038] (1) In the geometric modeling software, establish the geometric model of the thermal barrier coating, the geometric model of the turbine blade without thermal barrier coating, and the geometric model of the external flow field. ...

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

A method for evaluating an application effect of a thermal barrier coat for a turbine blade includes the following steps of based on the temperature field distributions in the two computational domains of the thermal barrier coating and the turbine blade without the thermal barrier coating, calculating the maximum principal stress and the maximum shear stress data of the stress field of the thermal barrier coating by a preset program, obtaining the thermal barrier coating insulation efficiency, and obtaining the local comprehensive and global comprehensive evaluation factors of the thermal barrier coating. The method of the invention realizes the simulation method of the thermal barrier coating of a three-dimensional turbine blade with an air film hole. A parameter for evaluating the application effect of thermal barrier coatings (TBCs) is established, which can reflect the comprehensive application performance of TBCs more comprehensively, and is more conducive to the design and analysis of TBCs from the two aspects of thermal insulation efficiency and stress level.

Description

technical field [0001] The invention relates to the technical field of a heat-insulating protective coating system in a high-performance aero-engine, in particular to an evaluation method for the application effect of a turbine blade thermal barrier coating. Background technique [0002] Thermal barrier coatings (TBCs) are ceramic coatings that are deposited on the surface of high temperature resistant metals or superalloys. The thermal barrier coating plays a role of heat insulation for the base material, which can reduce the base temperature, so that the engine turbine blade can operate at high temperature, and has the characteristics of high melting point, low thermal conductivity, corrosion resistance, and thermal shock resistance. During high-temperature service, thermal barrier coatings can protect high-temperature substrates, increase the temperature and thermal efficiency of heat engines, and thus are widely used in the fields of aviation, chemical industry, metallur...

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
CPCG06F30/23G06F30/17G06F2111/10
Inventor 杨丽刘志远周益春朱旺
Owner XIANGTAN 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