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

A Construction Method of Turbofan Engine Adaptive Component Level Simulation Model

A turbofan engine and simulation model technology, applied in design optimization/simulation, special data processing applications, geometric CAD, etc., can solve the problem of huge workload of model matching, achieve strong adaptability, high output tracking accuracy, improve model The effect of precision

Active Publication Date: 2020-07-28
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for constructing a turbofan engine adaptive component-level simulation model to solve the problem of using experience to manually adjust the characteristics of the engine gas path components and make the model match the huge workload.

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 Construction Method of Turbofan Engine Adaptive Component Level Simulation Model
  • A Construction Method of Turbofan Engine Adaptive Component Level Simulation Model
  • A Construction Method of Turbofan Engine Adaptive Component Level Simulation Model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0044] In this embodiment, the construction of an adaptive component-level simulation model of a turbofan engine with dual-shaft mixed exhaust is taken as an example. figure 1 is the schematic diagram of the turbofan engine adaptive component-level simulation model, and the establishment of the simulation model includes the following steps:

[0045] Step A, according to the aerodynamic thermodynamic characteristics of each component of the turbofan engine, obtain the parameters of each working section of the turbofan engine, and establish a non-linear component-level dynamic general model of the turbofan engine above the idle state; the detailed steps are as follows:

[0046] In step A1, an engine component-level model is established according to the characteristics of turbofan engine components, design point parameters and test run data. Mixing chamber and nozzle, etc., and then establish the common working equations among the components according to the principles of continu...

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 turbofan engine self-adaptive component level simulation model construction method, which comprises the following steps: step A, obtaining parameters of each working sectionof a turbofan engine, establishing a nonlinear component level dynamic universal model of the turbofan engine in a state above a slow train; step B, designing a volume tracking filter and estimating an unmeasurable performance feature parameter of an air channel component of the turbofan engine in the nonlinear component level dynamic universal model obtained in the step 1, wherein the air channelcomponent comprises a fan, a gas compressor, a high pressure turbine and a low pressure turbine; step C, using the performance feature parameter estimated in the step B to automatically update the flow and efficiency characteristic diagram of the air channel component, using the adjusted air channel component characteristic parameters for calculation of component aerothermodynamic parameters, andestablishing a self-adaptive component level simulation model in a state above the slow train. The turbofan engine self-adaptive component level simulation model construction method in the inventionsignificantly improves the precision of the nonlinear component level engine individual model in the state above the slow train.

Description

technical field [0001] The invention relates to the field of aero-engine modeling and simulation, in particular to a method for constructing a turbofan engine adaptive component-level simulation model. Background technique [0002] The structure of the turbofan engine is complex and the working environment is harsh, and the requirements for its safety and reliability are very high. The research on the adaptive modeling technology of the turbofan engine has always been an important topic. The aero-engine adaptive model can reflect the differences between engines and the influence of factors such as performance degradation during service life on engine performance, which is the basis for realizing engine adaptive adjustment control and ensuring the normal operation of the engine. At the same time, the sensor fault diagnosis, isolation and fault-tolerant control of the engine control system also require an accurate engine model as a prerequisite, so establishing an accurate ada...

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 Patents(China)
IPC IPC(8): G06F30/20G06F30/15
CPCG06F30/15G06F30/20
Inventor 鲁峰高天阳一黄金泉周文祥仇小杰吴斌
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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