Turboshaft engine reverse modeling method based on test data

A technology of turboshaft engine and test data, applied in the field of aero-engine, to achieve the effect of high precision, simple operation and strong applicability

Inactive Publication Date: 2020-06-26
NORTHWESTERN POLYTECHNICAL UNIV
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention is of great significance in terms of validity of engine test data, evaluation of engine performance, etc., and solves engineering problems related to turboshaft engines

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
  • Turboshaft engine reverse modeling method based on test data
  • Turboshaft engine reverse modeling method based on test data
  • Turboshaft engine reverse modeling method based on test data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Various exemplary embodiments, features, and aspects of the invention will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0050] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0051] In addition, in order to better illustrate the present invention, numerous specific details are given in the specific embodiments below. It will be understood by those skilled in the art that the present invention may be practiced without certain of the specific details. In some instances, methods, means, components and circuits well kn...

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 discloses a turboshaft engine reverse modeling method based on test data, and belongs to the field of aero-engines. The implementation method comprises the following steps: performing state conversion on test data of a plurality of test points of the turboshaft engine to obtain a test point data set in a target test state; screening data in the test point data set to obtain a screened test point data set; according to the plurality of actual measurement parameters, sequentially performing parameter trial and error on the plurality of trial and error iteration parameters to obtaina preliminary turboshaft engine model; adjusting the characteristics of universal parts, and calibrating the preliminary turboshaft engine model in combination with throttling test data; and performing Reynolds number and gap correction on the calibrated turboshaft engine model to obtain a target turboshaft engine model. According to the method, tTest data is directly utilized, dependence on parttest characteristics is not needed, model construction can be completed in a short time, and high precision is kept. The method has the advantages of being easy to operate and high in applicability.

Description

technical field [0001] The present invention relates to a method for constructing an aerodynamic and thermal model of a turboshaft engine, in particular to a method for constructing a reverse model of a turboshaft engine based on test data, which is applicable to an engine that only has test data of a turboshaft engine as a whole and has no test characteristics of engine components Model construction and prediction of the aerodynamic and thermal performance of turboshaft engines belong to the field of aeroengines. Background technique [0002] The mathematical model of aero-engine is an important tool to evaluate and predict the performance of aero-engine under different flight conditions, and it is widely used in the development of aero-engine. [0003] In general, the construction of mathematical models of aero-engines depends on a large number of component test characteristics as support. On this basis, the characteristics of the components are adjusted proportionally ac...

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 Applications(China)
IPC IPC(8): G06F30/20G06F111/10
Inventor 吴锋高丽敏刘涛冯旭栋
Owner NORTHWESTERN POLYTECHNICAL 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