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On Step by Step Method in Developing Aero-Engines

Wen Junfeng

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 23-26

Abstract:

Two ways to develop the aero-engines and their respective features are discussed in a summary mannerjustified with reference to the practices widely used at home and abroad for improving and developing aero-enginesand to the experience therein, and a better organization and direction for improving and developing aero-engines

Keywords： aero-engine     ways to develop aero-engines     step by step method    

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Formulating Strategy and Technology Path for Next-Generation Airworthiness Regulations of Aero-Engines

Yin Zeyong, Ding Shuiting, Li Guo, Qiu Tian, Liu Chuankai, Zhou Yu, Qi Lei

Strategic Study of CAE 2022, Volume 24, Issue 4,   Pages 230-239 doi: 10.15302/J-SSCAE-2022.04.020

Abstract: As major national science and technology projects for large aircraft, aero-engines, and gas turbinesthis, the formation strategy and technical path for the next-generation airworthiness regulations of aero-enginesProposed new framework for airworthiness regulation of aero-engines (Book 1).Proposed new framework for airworthiness regulation of aero-engines (Book 2).; (i.e., aero-engines and gas turbines) project should jointly support research on aero-engine safety

Keywords： next-generation airworthiness regulations     aero-engines     new regulation framework     requirement for system    

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Scientific Decision Making is the Key to Successful Research and Development of Aero-engines

Wen Junfeng

Strategic Study of CAE 2001, Volume 3, Issue 1,   Pages 31-35

Abstract: significance of the theory of modem management and decision making to the research and development of aero-enginesand unsuccessful examples in and out of China of decision making in research and development of new aero-enginesFor the better and faster development of Chinese aero-engines, to practise decision making in a scientific

Keywords： aeroengine     research and development     scienctific decision making    

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Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0731-1

Abstract: This study proposes a method of full-field and real-time strain reconstruction of an aero-engine bladeThe proposed method is validated on an aero-engine blade in numerical and experimental cases.

Keywords： aero-engine blade     displacement response     dynamic strain reconstruction     mode shape     strain gauge    

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Group-based multiple pipe routing method for aero-engine focusing on parallel layout

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 798-813 doi: 10.1007/s11465-021-0645-3

Abstract: External pipe routing for aero-engine in limited three-dimensional space is a typical nondeterministicThis paper presents an automatic multiple pipe routing method for aero-engine that focuses on parallelFinally, the simulation results on an aero-engine demonstrate the feasibility and effectiveness of the

Keywords： multiple pipe routing     optimization algorithm     aero-engine     pipe grouping     parallel layout    

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Model validation for structural dynamics in the aero-engine design process

Chaoping ZANG, D. J. EWINS,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 480-488 doi: 10.1007/s11708-009-0043-8

Abstract: A model validation technique in structural dynamics and its application in aero-engine development isAn aero-engine component is used as an example to demonstrate the validation using the experimental test

Keywords： model validation     aero-engine     structural dynamics    

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Unified cycle model of a class of internal combustion engines and their optimum performance characteristics

Shiyan ZHENG

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 367-375 doi: 10.1007/s11708-011-0170-x

Abstract: The unified cycle model of a class of internal combustion engines is presented, in which the influenceand useful, from which the optimal performance of the Atkinson, Otto, Diesel, Dual and Miller heat enginesand some new heat engines can be directly derived.

Keywords： internal combustion engine     irreversibility     power output     efficiency     optimization    

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Optimization of aero-engine pipeline for avoiding vibration based on length adjustment of straight-line

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 11-11 doi: 10.1007/s11465-021-0667-x

Abstract: In the design and troubleshooting of aero-engine pipeline, the vibration reduction of the pipeline systemsegment is taken as the design variable, and an innovative optimization method of avoiding vibration of aero-engine

Keywords： length adjustment     spatial pipeline     aero-engine     vibration avoidance optimization     genetic algorithm    

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A method of analysis for modal aero-damping of vibrating blade in incompressible flow

Jun XING, Lin LI,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 465-471 doi: 10.1007/s11708-009-0037-6

Abstract: By establishing a research model for aero-damping in a uniform incoming flow, the three-dimension analyticalalgorithm of the modal aero-damping based on the equivalent viscous damping principle was establishedThe algorithm, which is suited for low-speed flow, to compute aero-damping is based on classical liftAccording to the analytical equations, the modal aero-damping ratio for different nature frequenciesThe results show that the aero-damping cannot be neglected comparing with the structure damping.

Keywords： compressor     different     three-dimension analytical     classical     low-speed    

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Prospects of Reciprocating Engines and Fuels

Michael J. Brear

Engineering 2019, Volume 5, Issue 3,   Pages 395-396 doi: 10.1016/j.eng.2019.04.003

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Creep life assessment of aero-engine recuperator based on continuum damage mechanics approach

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0702-6

Abstract: The creep life of an aeroengine recuperator is investigated in terms of continuum damage mechanics by using finite element simulations. The effects of the manifold wall thickness and creep properties of brazing filler metal on the operating life of the recuperator are analyzed. Results show that the crack initiates from the brazing filler metal located on the outer surface of the manifold with the wall thickness of 2 mm and propagates throughout the whole region of the brazing filler metal when the creep time reaches 34900 h. The creep life of the recuperator meets the requirement of 40000 h continuous operation when the wall thickness increases to 3.5 mm, but its total weight increases by 15%. Decreasing the minimum creep strain rate with the enhancement of the creep strength of the brazing filler metal presents an obvious effect on the creep life of the recuperator. At the same stress level, the creep rupture time of the recuperator is enhanced by 13 times if the mismatch between the minimum creep rate of the filler and base metal is reduced by 20%.

Keywords： creep     life assessment     brazed joint     continuum damage mechanics     aeroengine recuperator    

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A New Subdiscipline of Contemporary Optics—Aero-optics

Yin Xingliang

Strategic Study of CAE 2005, Volume 7, Issue 12,   Pages 1-6

Abstract:

Based on developing process of aero-optics, the background of the subject is introduced.research contents are described, which include mechanism, calibration methods, calibration tests for aero-optic

Keywords： aerodynamics     turbulent flows     optics     aero-optics    

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Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots for aero-engine

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0756-0

Abstract: In-situ maintenance is of great significance for improving the efficiency and ensuring the safety of aero-enginesa novel tool that aims to promote the development of intelligence and efficiency for in-situ aero-engineintegrated to experimentally validate the proposed kinetostatic model and the concept of in-situ aero-enginecontinuum robot system could be considered a novel solution to perform in-situ maintenance tasks of aero-engines

Keywords： kinetostatic modeling     morphology characterization     variable friction     continuum robots     in-situ maintenance    

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Numerical simulation of charge stratifications to improve combustion and NO formation of lean-burn SI engines

Zhijun PENG ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 353-358 doi: 10.1007/s11708-009-0035-8

Abstract: The influences of charge stratification on spark ignition (SI) engine combustion and NO emission were analyzed using a phenomenological model. The mixture in the cylinder was divided spherically into three parts: a central core with a stoichiometric air-fuel charge, a dilution region without any combustible charge, and a mixing region lying between the core and the dilution region. Three mixture stratification parameters such as the extent of dilution in the mixing region, the extent of combustible charge in the mixing region, and the gradient of stratification in the mixing region were investigated. The results indicate that the extent of combustible charge in the mixing region could reduce in-cylinder NO formation significantly, compared with the extent of dilution in the mixing region. As long as the degree of dilution in the mixing region is within the dilution limit of the combustible charge, the gradient of dilution has little effect on combustion and NO formation.

Keywords： charge stratification     SI engine     lean-burn combustion     NO emission    

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Calibration of catalyst temperature in automotive engines over coldstart operation in the presence of

Nasser L. AZAD,Ahmad MOZAFFARI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 405-412 doi: 10.1007/s11465-015-0354-x

Abstract: years, a number of articles have been published which aim at the modeling and analysis of automotive engines

Keywords： automotive engine     calibration     coldstart operation     Gaussian process regression machine (GPRM)     uncertainty and random noises    

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Title Author Date Type Operation

On Step by Step Method in Developing Aero-Engines

Wen Junfeng

Journal Article

Formulating Strategy and Technology Path for Next-Generation Airworthiness Regulations of Aero-Engines

Yin Zeyong, Ding Shuiting, Li Guo, Qiu Tian, Liu Chuankai, Zhou Yu, Qi Lei

Journal Article

Scientific Decision Making is the Key to Successful Research and Development of Aero-engines

Wen Junfeng

Journal Article

Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Journal Article

Group-based multiple pipe routing method for aero-engine focusing on parallel layout

Journal Article

Model validation for structural dynamics in the aero-engine design process

Chaoping ZANG, D. J. EWINS,

Journal Article

Unified cycle model of a class of internal combustion engines and their optimum performance characteristics

Shiyan ZHENG

Journal Article

Optimization of aero-engine pipeline for avoiding vibration based on length adjustment of straight-line

Journal Article

A method of analysis for modal aero-damping of vibrating blade in incompressible flow

Jun XING, Lin LI,

Journal Article

Prospects of Reciprocating Engines and Fuels

Michael J. Brear

Journal Article

Creep life assessment of aero-engine recuperator based on continuum damage mechanics approach

Journal Article

A New Subdiscipline of Contemporary Optics—Aero-optics

Yin Xingliang

Journal Article

Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots for aero-engine

Journal Article

Numerical simulation of charge stratifications to improve combustion and NO formation of lean-burn SI engines

Zhijun PENG ,

Journal Article

Calibration of catalyst temperature in automotive engines over coldstart operation in the presence of

Nasser L. AZAD,Ahmad MOZAFFARI

Journal Article